{"pageNumber":"644","pageRowStart":"16075","pageSize":"25","recordCount":40807,"records":[{"id":70041493,"text":"70041493 - 2013 - Predicting the planform configuration of the braided Toklat River, AK with a suite of rule-based models","interactions":[],"lastModifiedDate":"2013-07-30T12:54:44","indexId":"70041493","displayToPublicDate":"2013-07-30T12:41:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"Predicting the planform configuration of the braided Toklat River, AK with a suite of rule-based models","docAbstract":"An ensemble of rule-based models was constructed to assess possible future braided river planform configurations for the Toklat River in Denali National Park and Preserve, Alaska. This approach combined an analysis of large-scale influences on stability with several reduced-complexity models to produce the predictions at a practical level for managers concerned about the persistence of bank erosion while acknowledging the great uncertainty in any landscape prediction. First, a model of confluence angles reproduced observed angles of a major confluence, but showed limited susceptibility to a major rearrangement of the channel planform downstream. Second, a probabilistic map of channel locations was created with a two-parameter channel avulsion model. The predicted channel belt location was concentrated in the same area as the current channel belt. Finally, a suite of valley-scale channel and braid plain characteristics were extracted from a light detection and ranging (LiDAR)-derived surface. The characteristics demonstrated large-scale stabilizing topographic influences on channel planform. The combination of independent analyses increased confidence in the conclusion that the Toklat River braided planform is a dynamically stable system due to large and persistent valley-scale influences, and that a range of avulsive perturbations are likely to result in a relatively unchanged planform configuration in the short term.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the American Water Resources Association","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1111/jawr.12029","usgsCitation":"Podolak, C.J., 2013, Predicting the planform configuration of the braided Toklat River, AK with a suite of rule-based models: Journal of the American Water Resources Association, v. 49, no. 2, p. 390-401, https://doi.org/10.1111/jawr.12029.","productDescription":"12 p.","startPage":"390","endPage":"401","numberOfPages":"12","ipdsId":"IP-036147","costCenters":[{"id":120,"text":"Alaska Science Center Water","active":true,"usgs":true}],"links":[{"id":275583,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":275581,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111 ⁄ jawr.12029"}],"country":"United States","state":"Alaska","otherGeospatial":"Toklat River","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -150.3167,63.4145 ], [ -150.3167,64.4558 ], [ -149.8318,64.4558 ], [ -149.8318,63.4145 ], [ -150.3167,63.4145 ] ] ] } } ] }","volume":"49","issue":"2","noUsgsAuthors":false,"publicationDate":"2013-01-28","publicationStatus":"PW","scienceBaseUri":"51f8d25ae4b0cecbe8fa9834","contributors":{"authors":[{"text":"Podolak, Charles J.","contributorId":52849,"corporation":false,"usgs":true,"family":"Podolak","given":"Charles","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":469845,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70046961,"text":"70046961 - 2013 - Distribution and exploitation of Nile perch Lates niloticus in relation to stratification in Lake Victoria, East Africa","interactions":[],"lastModifiedDate":"2013-09-09T11:06:39","indexId":"70046961","displayToPublicDate":"2013-07-30T11:57:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Distribution and exploitation of Nile perch Lates niloticus in relation to stratification in Lake Victoria, East Africa","docAbstract":"Stratification restricts habitable areas forcing fish to balance between favourable temperature and minimum dissolved oxygen requirements. Acoustic surveys conducted during the stratified and isothermal periods on tropical Lake Victoria indicated that stratification of temperature and dissolved oxygen (DO) affected vertical distribution of Nile perch. There was higher mean temperature (25.6 ± 0.5 °C) and lower DO (6.4 ± 1.8 mg/l) during stratified period compared to the isothermal period (mean temperature 24.9 ± 0.3 °C; mean DO 7.3 ± 0.6 mg/l). Higher mean densities of Nile perch were recorded in the coastal (0.44 ± 0.03) and deep (0.27 ± 0.02 g/m<sup>3</sup>) strata during the stratified compared to the isothermal season (coastal: 0.24 ± 0.01; deep: 0.12 ± 0.02 g/m<sup>3</sup>). In addition, Nile perch density in the upper 0–40 m depth layers in the coastal and deep strata increased by over 50% from the isothermal to the stratified season. Daily landings from 65 motorised fishing boats between October 2008 and September 2010 show higher mean catch (26.29 ± 0.17 kg/boat/day) during stratified compared to the isothermal (23.59 ± 0.15) season. Thermal stratification apparently compresses the habitat available to Nile perch and can potentially result in higher exploitation. Managers should evaluate the potential benefits of instituting closed seasons during the stratified period, and stock assessment models should take into account the seasonal niche compression.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Great Lakes Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.jglr.2013.06.009","usgsCitation":"Taabu-Munyaho, A., Kayanda, R.J., Everson, I., Grabowski, T.B., and Marteinsdottir, G., 2013, Distribution and exploitation of Nile perch Lates niloticus in relation to stratification in Lake Victoria, East Africa: Journal of Great Lakes Research, v. 39, no. 3, p. 466-475, https://doi.org/10.1016/j.jglr.2013.06.009.","productDescription":"10 p.","startPage":"466","endPage":"475","ipdsId":"IP-035283","costCenters":[{"id":582,"text":"Texas Cooperative Fish and Wildlife Research Unit","active":false,"usgs":true}],"links":[{"id":275577,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":275575,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jglr.2013.06.009"}],"otherGeospatial":"Lake Victoria","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 31.5952,-3.1876 ], [ 31.5952,0.4906 ], [ 34.868,0.4906 ], [ 34.868,-3.1876 ], [ 31.5952,-3.1876 ] ] ] } } ] }","volume":"39","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f8d256e4b0cecbe8fa980c","contributors":{"authors":[{"text":"Taabu-Munyaho, A.","contributorId":39272,"corporation":false,"usgs":true,"family":"Taabu-Munyaho","given":"A.","email":"","affiliations":[],"preferred":false,"id":480715,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kayanda, Robert J.","contributorId":76623,"corporation":false,"usgs":true,"family":"Kayanda","given":"Robert","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":480717,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Everson, Inigo","contributorId":57346,"corporation":false,"usgs":true,"family":"Everson","given":"Inigo","email":"","affiliations":[],"preferred":false,"id":480716,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Grabowski, Timothy B. 0000-0001-9763-8948 tgrabowski@usgs.gov","orcid":"https://orcid.org/0000-0001-9763-8948","contributorId":4178,"corporation":false,"usgs":true,"family":"Grabowski","given":"Timothy","email":"tgrabowski@usgs.gov","middleInitial":"B.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true},{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"preferred":true,"id":480713,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Marteinsdottir, Gudrun","contributorId":11099,"corporation":false,"usgs":false,"family":"Marteinsdottir","given":"Gudrun","email":"","affiliations":[],"preferred":false,"id":480714,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70007167,"text":"70007167 - 2013 - Pre- and post-impoundment nitrogen in the lower Missouri River","interactions":[],"lastModifiedDate":"2014-01-13T10:23:22","indexId":"70007167","displayToPublicDate":"2013-07-30T11:42:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Pre- and post-impoundment nitrogen in the lower Missouri River","docAbstract":"Large water-sample sets collected from 1899 through 1902, 1907, and in the early 1950s allow comparisons of pre-impoundment and post-impoundment (1969 through 2008) nitrogen concentrations in the lower Missouri River. Although urban wastes were not large enough to detectably increase annual loads of total nitrogen at the beginning of the 20th century, carcass waste, stock-yard manure, and untreated human wastes measurably increased ammonia and organic-nitrogen concentrations during low flows. Average total-nitrogen concentrations in both periods were about 2.5 mg/l, but much of the particulate-organic nitrogen, which was the dominant form of nitrogen around 1900, has been replaced by nitrate. This change in speciation was caused by the nearly 80% decrease in suspended-sediment concentrations that occurred after impoundment, modern agriculture, drainage of riparian wetlands, and sewage treatment. Nevertheless, bioavailable nitrogen has not been low enough to limit primary production in the Missouri River since the beginning of the 20th century. Nitrate concentrations have increased more rapidly from 2000 through 2008 (5 to 12% per year), thus increasing bioavailable nitrogen delivered to the Mississippi River and affecting Gulf Coast hypoxia. The increase in nitrate concentrations with distance downstream is much greater during the post-impoundment period. If strategies to decrease total-nitrogen loads focus on particulate N, substantial decreases will be difficult because particulate nitrogen is now only 23% of total nitrogen in the Missouri River. A strategy aimed at decreasing particulates also could further exacerbate land loss along the Gulf of Mexico, which has been sediment starved since Missouri River impoundment. In contrast, strategies or benchmarks aimed at decreasing nitrate loads could substantially decrease nitrogen loadings because nitrates now constitute over half of the Missouri's nitrogen input to the Mississippi. Ongoing restoration and creation of wetlands along the Missouri River could be part of such a nitrate-reduction strategy. Published 2013. This article is a U.S. Government work and is in the public domain in the USA.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1002/hyp.9797","usgsCitation":"Blevins, D.W., Wilkison, D.H., and Niesen, S.L., 2013, Pre- and post-impoundment nitrogen in the lower Missouri River: Hydrological Processes, v. 28, no. 4, p. 2535-2549, https://doi.org/10.1002/hyp.9797.","productDescription":"15 p.","startPage":"2535","endPage":"2549","numberOfPages":"15","ipdsId":"IP-026501","costCenters":[{"id":396,"text":"Missouri Water Science Center","active":true,"usgs":true}],"links":[{"id":275576,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":275573,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.9797"}],"scale":"100000","projection":"Universal Transverse Mercator projection, zone 15","country":"United States","state":"Illinois;Iowa;Kansas;Missouri;Nebraska","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -98.5693,38.1518 ], [ -98.5693,43.0609 ], [ -89.9561,43.0609 ], [ -89.9561,38.1518 ], [ -98.5693,38.1518 ] ] ] } } ] }","volume":"28","issue":"4","noUsgsAuthors":false,"publicationDate":"2013-04-18","publicationStatus":"PW","scienceBaseUri":"51f8d25ae4b0cecbe8fa9830","contributors":{"authors":[{"text":"Blevins, Dale W. dblevins@usgs.gov","contributorId":2729,"corporation":false,"usgs":true,"family":"Blevins","given":"Dale","email":"dblevins@usgs.gov","middleInitial":"W.","affiliations":[],"preferred":true,"id":356006,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilkison, Donald H. wilkison@usgs.gov","contributorId":3824,"corporation":false,"usgs":true,"family":"Wilkison","given":"Donald","email":"wilkison@usgs.gov","middleInitial":"H.","affiliations":[{"id":396,"text":"Missouri Water Science Center","active":true,"usgs":true}],"preferred":true,"id":356007,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Niesen, Shelley L. ssevern@usgs.gov","contributorId":4583,"corporation":false,"usgs":true,"family":"Niesen","given":"Shelley","email":"ssevern@usgs.gov","middleInitial":"L.","affiliations":[{"id":396,"text":"Missouri Water Science Center","active":true,"usgs":true}],"preferred":true,"id":356008,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70040458,"text":"70040458 - 2013 - Observed impacts of duration and seasonality of atmospheric-river landfalls on soil moisture and runoff in coastal northern California","interactions":[],"lastModifiedDate":"2013-07-30T10:23:00","indexId":"70040458","displayToPublicDate":"2013-07-30T09:59:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2344,"text":"Journal of Hydrometeorology","active":true,"publicationSubtype":{"id":10}},"title":"Observed impacts of duration and seasonality of atmospheric-river landfalls on soil moisture and runoff in coastal northern California","docAbstract":"This study is motivated by diverse needs for better forecasts of extreme precipitation and floods. It is enabled by unique hourly observations collected over six years near California’s Russian River and by recent advances in the science of atmospheric rivers (ARs). This study fills key gaps limiting the prediction of ARs and, especially, their impacts by quantifying the duration of AR conditions and the role of duration in modulating hydrometeorological impacts. Precursor soil moisture conditions and their relationship to streamflow are also shown. On the basis of 91 well-observed events during 2004-10, the study shows that the passage of ARs over a coastal site lasted 20 h on average and that 12% of the AR events exceeded 30 h. Differences in storm-total water vapor transport directed up the mountain slope contribute 74% of the variance in storm-total rainfall across the events and 61% of the variance in storm-total runoff volume. ARs with double the composite mean duration produced nearly 6 times greater peak streamflow and more than 7 times the storm-total runoff volume. When precursor soil moisture was less than 20%, even heavy rainfall did not lead to significant streamflow. Predicting which AR events are likely to produce extreme impacts on precipitation and runoff requires accurate prediction of AR duration at landfall and observations of precursor soil moisture conditions.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrometeorology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Meteorological Society","doi":"10.1175/JHM-D-12-076.1","usgsCitation":"Ralph, F., Coleman, T., Neiman, P., Zamora, R., and Dettinger, M., 2013, Observed impacts of duration and seasonality of atmospheric-river landfalls on soil moisture and runoff in coastal northern California: Journal of Hydrometeorology, v. 14, no. 2, p. 443-459, https://doi.org/10.1175/JHM-D-12-076.1.","productDescription":"17 p.","startPage":"443","endPage":"459","numberOfPages":"17","ipdsId":"IP-041555","costCenters":[{"id":148,"text":"Branch of Regional Research-Western Region","active":false,"usgs":true}],"links":[{"id":473639,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1175/jhm-d-12-076.1","text":"Publisher Index Page"},{"id":275560,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":275559,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1175/JHM-D-12-076.1"}],"country":"United States","state":"California","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.9038,38.2468 ], [ -123.9038,39.0981 ], [ -122.8738,39.0981 ], [ -122.8738,38.2468 ], [ -123.9038,38.2468 ] ] ] } } ] }","volume":"14","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f8d258e4b0cecbe8fa9820","contributors":{"authors":[{"text":"Ralph, F.M.","contributorId":39174,"corporation":false,"usgs":true,"family":"Ralph","given":"F.M.","email":"","affiliations":[],"preferred":false,"id":468374,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Coleman, T.","contributorId":96570,"corporation":false,"usgs":true,"family":"Coleman","given":"T.","email":"","affiliations":[],"preferred":false,"id":468376,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Neiman, P.J.","contributorId":14991,"corporation":false,"usgs":true,"family":"Neiman","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":468373,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zamora, R.J.","contributorId":87840,"corporation":false,"usgs":true,"family":"Zamora","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":468375,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dettinger, Mike 0000-0002-7509-7332 mddettin@usgs.gov","orcid":"https://orcid.org/0000-0002-7509-7332","contributorId":859,"corporation":false,"usgs":true,"family":"Dettinger","given":"Mike","email":"mddettin@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":false,"id":468372,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70003664,"text":"70003664 - 2013 - Estimating occupancy and predicting numbers of gray wolf packs in Montana using hunter surveys","interactions":[],"lastModifiedDate":"2018-01-04T15:24:39","indexId":"70003664","displayToPublicDate":"2013-07-30T09:23:04","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Estimating occupancy and predicting numbers of gray wolf packs in Montana using hunter surveys","docAbstract":"<p>Reliable knowledge of the status and trend of carnivore populations is critical to their conservation and management. Methods for monitoring carnivores, however, are challenging to conduct across large spatial scales. In the Northern Rocky Mountains, wildlife managers need a time- and cost-efficient method for monitoring gray wolf (Canis lupus) populations. Montana Fish, Wildlife and Parks (MFWP) conducts annual telephone surveys of &gt;50,000 deer and elk hunters. We explored how survey data on hunters' sightings of wolves could be used to estimate the occupancy and distribution of wolf packs and predict their abundance in Montana for 2007&ndash;2009. We assessed model utility by comparing our predictions to MFWP minimum known number of wolf packs. We minimized false positive detections by identifying a patch as occupied if 2&ndash;25 wolves were detected by &ge;3 hunters. Overall, estimates of the occupancy and distribution of wolf packs were generally consistent with known distributions. Our predictions of the total area occupied increased from 2007 to 2009 and predicted numbers of wolf packs were approximately 1.34&ndash;1.46 times the MFWP minimum counts for each year of the survey. Our results indicate that multi-season occupancy models based on public sightings can be used to monitor populations and changes in the spatial distribution of territorial carnivores across large areas where alternative methods may be limited by personnel, time, accessibility, and budget constraints.</p>","language":"English","publisher":"Wiley","doi":"10.1002/jwmg.562","usgsCitation":"Rich, L.N., Russell, R.E., Glenn, E., Mitchell, M.S., Gude, J., Podruzny, K.M., Sime, C.A., Laudon, K., Ausband, D., and Nichols, J., 2013, Estimating occupancy and predicting numbers of gray wolf packs in Montana using hunter surveys: Journal of Wildlife Management, v. 77, no. 6, p. 1280-1289, https://doi.org/10.1002/jwmg.562.","productDescription":"10 p.","startPage":"1280","endPage":"1289","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-028210","costCenters":[{"id":399,"text":"Montana Cooperative Wildlife Research Unit","active":false,"usgs":true},{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":275554,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Montana","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -116.05,44.36 ], [ -116.05,49.0 ], [ -104.04,49.0 ], [ -104.04,44.36 ], [ -116.05,44.36 ] ] ] } } ] }","volume":"77","issue":"6","noUsgsAuthors":false,"publicationDate":"2013-06-26","publicationStatus":"PW","scienceBaseUri":"51f8d257e4b0cecbe8fa9814","contributors":{"authors":[{"text":"Rich, Lindsey N.","contributorId":42119,"corporation":false,"usgs":true,"family":"Rich","given":"Lindsey","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":348233,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Russell, Robin E. 0000-0001-8726-7303 rerussell@usgs.gov","orcid":"https://orcid.org/0000-0001-8726-7303","contributorId":3998,"corporation":false,"usgs":true,"family":"Russell","given":"Robin","email":"rerussell@usgs.gov","middleInitial":"E.","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":true,"id":348231,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Glenn, Elizabeth M.","contributorId":96568,"corporation":false,"usgs":true,"family":"Glenn","given":"Elizabeth M.","affiliations":[],"preferred":false,"id":348238,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mitchell, Michael S. 0000-0002-0773-6905 mmitchel@usgs.gov","orcid":"https://orcid.org/0000-0002-0773-6905","contributorId":3716,"corporation":false,"usgs":true,"family":"Mitchell","given":"Michael","email":"mmitchel@usgs.gov","middleInitial":"S.","affiliations":[{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"preferred":true,"id":348230,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gude, Justin A.","contributorId":95780,"corporation":false,"usgs":true,"family":"Gude","given":"Justin A.","affiliations":[],"preferred":false,"id":348237,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Podruzny, Kevin M.","contributorId":85865,"corporation":false,"usgs":true,"family":"Podruzny","given":"Kevin","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":348236,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Sime, Carolyn A.","contributorId":76627,"corporation":false,"usgs":true,"family":"Sime","given":"Carolyn","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":348235,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Laudon, Kent","contributorId":16298,"corporation":false,"usgs":true,"family":"Laudon","given":"Kent","email":"","affiliations":[],"preferred":false,"id":348232,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Ausband, David E.","contributorId":51441,"corporation":false,"usgs":true,"family":"Ausband","given":"David E.","affiliations":[],"preferred":false,"id":348234,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Nichols, James D. 0000-0002-7631-2890 jnichols@usgs.gov","orcid":"https://orcid.org/0000-0002-7631-2890","contributorId":405,"corporation":false,"usgs":true,"family":"Nichols","given":"James D.","email":"jnichols@usgs.gov","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":348229,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70047284,"text":"dsDS709CC - 2013 - Local-area-enhanced, 2.5-meter resolution natural-color and color-infrared satellite-image mosaics of the Parwan mineral district in Afghanistan: Chapter CC in <i>Local-area-enhanced, high-resolution natural-color and color-infrared satellite-image mosaics of mineral districts in Afghanistan</i>","interactions":[],"lastModifiedDate":"2013-07-30T09:40:27","indexId":"dsDS709CC","displayToPublicDate":"2013-07-29T20:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"709","chapter":"CC","title":"Local-area-enhanced, 2.5-meter resolution natural-color and color-infrared satellite-image mosaics of the Parwan mineral district in Afghanistan: Chapter CC in <i>Local-area-enhanced, high-resolution natural-color and color-infrared satellite-image mosaics of mineral districts in Afghanistan</i>","docAbstract":"The U.S. Geological Survey (USGS), in cooperation with the U.S. Department of Defense Task Force for Business and Stability Operations, prepared databases for mineral-resource target areas in Afghanistan. The purpose of the databases is to (1) provide useful data to ground-survey crews for use in performing detailed assessments of the areas and (2) provide useful information to private investors who are considering investment in a particular area for development of its natural resources. The set of satellite-image mosaics provided in this Data Series (DS) is one such database. Although airborne digital color-infrared imagery was acquired for parts of Afghanistan in 2006, the image data have radiometric variations that preclude their use in creating a consistent image mosaic for geologic analysis. Consequently, image mosaics were created using ALOS (Advanced Land Observation Satellite; renamed Daichi) satellite images, whose radiometry has been well determined (Saunier, 2007a,b). This part of the DS consists of the locally enhanced ALOS image mosaics for the Parwan mineral district, which has gold and copper deposits.\n\nALOS was launched on January 24, 2006, and provides multispectral images from the AVNIR (Advanced Visible and Near-Infrared Radiometer) sensor in blue (420–500 nanometer, nm), green (520–600 nm), red (610–690 nm), and near-infrared (760–890 nm) wavelength bands with an 8-bit dynamic range and a 10-meter (m) ground resolution. The satellite also provides a panchromatic band image from the PRISM (Panchromatic Remote-sensing Instrument for Stereo Mapping) sensor (520–770 nm) with the same dynamic range but a 2.5-m ground resolution. The image products in this DS incorporate copyrighted data provided by the Japan Aerospace Exploration Agency (©JAXA,2006, 2007), but the image processing has altered the original pixel structure and all image values of the JAXA ALOS data, such that original image values cannot be recreated from this DS. As such, the DS products match JAXA criteria for value added products, which are not copyrighted, according to the ALOS end-user license agreement.\n\nelevation angles (near summer solstice) and (2) the least cloud, cloud-shadow, and snow cover. The multispectral and panchromatic data were orthorectified with ALOS satellite ephemeris data, a process which is not as accurate as orthorectification using digital elevation models (DEMs); however, the ALOS processing center did not have a precise DEM. As a result, the multispectral and panchromatic image pairs were generally not well registered to the surface and not coregistered well enough to perform resolution enhancement on the multispectral data. Therefore, it was necessary to (1) register the 10-m AVNIR multispectral imagery to a well-controlled Landsat image base, (2) mosaic the individual multispectral images into a single image of the entire area of interest, (3) register each panchromatic image to the registered multispectral image base, and (4) mosaic the individual panchromatic images into a single image of the entire area of interest. The two image-registration steps were facilitated using an automated control-point algorithm developed by the USGS that allows image coregistration to within one picture element. Before rectification, the multispectral and panchromatic images were converted to radiance values and then to relative-reflectance values using the methods described in Davis (2006). Mosaicking the multispectral or panchromatic images started with the image with the highest sun-elevation angle and the least atmospheric scattering, which was treated as the standard image. The band-reflectance values of all other multispectral or panchromatic images within the area were sequentially adjusted to that of the standard image by determining band-reflectance correspondence between overlapping images using linear least-squares analysis. The resolution of the multispectral image mosaic was then increased to that of the panchromatic image mosaic using the SPARKLE logic, which is described in Davis (2006). Each of the four-band images within the resolution-enhanced image mosaic was individually subjected to a local-area histogram stretch algorithm (described in Davis, 2007), which stretches each band’s picture element based on the digital values of all picture elements within a 500-m radius. The final databases, which are provided in this DS, are three-band, color-composite images of the local-area-enhanced, natural-color data (the blue, green, and red wavelength bands) and color-infrared data (the green, red, and near-infrared wavelength bands).\n\nAll image data were initially projected and maintained in Universal Transverse Mercator (UTM) map projection using the target area’s local zone (42 for Parwan) and the WGS84 datum. The final image mosaics were subdivided into two overlapping tiles or quadrants because of the large size of the target area. The two image tiles (or quadrants) for the North Bamyan area are provided as embedded geotiff images, which can be read and used by most geographic information system (GIS) and image-processing software. The tiff world files (tfw) are provided, even though they are generally not needed for most software to read an embedded geotiff image.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Local-area-enhanced, high-resolution natural-color and color-infrared satellite-image mosaics of mineral districts in Afghanistan (Data Series 709)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/dsDS709CC","collaboration":"Prepared in cooperation with the U.S. Department of Defense Task Force for Business and Stability Operations and the Afghanistan Geological Survey; This report is Chapter CC in <i>Local-area-enhanced, high-resolution natural-color and color-infrared satellite-image mosaics of mineral districts in Afghanistan</i>. For more information, see: <a href=\"http://pubs.er.usgs.gov/publication/ds709\" target=\"_blank\">Data Series 709</a>.","usgsCitation":"Davis, P.A., 2013, Local-area-enhanced, 2.5-meter resolution natural-color and color-infrared satellite-image mosaics of the Parwan mineral district in Afghanistan: Chapter CC in <i>Local-area-enhanced, high-resolution natural-color and color-infrared satellite-image mosaics of mineral districts in Afghanistan</i>: U.S. Geological Survey Data Series 709, HTML Document; Readme Text; 4 Index Maps; 4 Image Files; 4 Metadata Files; Shapefiles, https://doi.org/10.3133/dsDS709CC.","productDescription":"HTML Document; Readme Text; 4 Index Maps; 4 Image Files; 4 Metadata Files; Shapefiles","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-049057","costCenters":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"links":[{"id":275537,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/dsds709cc.PNG"},{"id":275531,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/ds/709/cc/"},{"id":275536,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/ds/709/cc/shapefiles/shapefiles.html"},{"id":275532,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/ds/709/cc/1_readme.txt"},{"id":275533,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ds/709/cc/index_maps/index_maps.html"},{"id":275534,"type":{"id":14,"text":"Image"},"url":"https://pubs.usgs.gov/ds/709/cc/image_files/image_files.html"},{"id":275535,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/ds/709/cc/metadata/metadata.html"}],"country":"Afghanistan","otherGeospatial":"Parwan Mineral District","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 58.0,28.0 ], [ 58.0,40.0 ], [ 78.0,40.0 ], [ 78.0,28.0 ], [ 58.0,28.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f780d6e4b02e26443a9329","contributors":{"authors":[{"text":"Davis, Philip A. pdavis@usgs.gov","contributorId":692,"corporation":false,"usgs":true,"family":"Davis","given":"Philip","email":"pdavis@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":481610,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70044756,"text":"70044756 - 2013 - Mapping wildfire burn severity in the Arctic Tundra from downsampled MODIS data","interactions":[],"lastModifiedDate":"2013-08-12T09:42:50","indexId":"70044756","displayToPublicDate":"2013-07-29T13:45:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":899,"text":"Arctic, Antarctic, and Alpine Research","active":true,"publicationSubtype":{"id":10}},"title":"Mapping wildfire burn severity in the Arctic Tundra from downsampled MODIS data","docAbstract":"Wildfires are historically infrequent in the arctic tundra, but are projected to increase with climate warming. Fire effects on tundra ecosystems are poorly understood and difficult to quantify in a remote region where a short growing season severely limits ground data collection. Remote sensing has been widely utilized to characterize wildfire regimes, but primarily from the Landsat sensor, which has limited data acquisition in the Arctic. Here, coarse-resolution remotely sensed data are assessed as a means to quantify wildfire burn severity of the 2007 Anaktuvuk River Fire in Alaska, the largest tundra wildfire ever recorded on Alaska's North Slope. Data from Landsat Thematic Mapper (TM) and downsampled Moderate-resolution Imaging Spectroradiometer (MODIS) were processed to spectral indices and correlated to observed metrics of surface, subsurface, and comprehensive burn severity. Spectral indices were strongly correlated to surface severity (maximum R2 = 0.88) and slightly less strongly correlated to substrate severity. Downsampled MODIS data showed a decrease in severity one year post-fire, corroborating rapid vegetation regeneration observed on the burned site. These results indicate that widely-used spectral indices and downsampled coarse-resolution data provide a reasonable supplement to often-limited ground data collection for analysis and long-term monitoring of wildfire effects in arctic ecosystems.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Arctic, Antarctic, and Alpine Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Institute of Arctic and Alpine Research (INSTAAR)","doi":"10.1657/1938-4246-45.1.64","usgsCitation":"Kolden, C.A., and Rogan, J., 2013, Mapping wildfire burn severity in the Arctic Tundra from downsampled MODIS data: Arctic, Antarctic, and Alpine Research, v. 45, no. 1, p. 64-76, https://doi.org/10.1657/1938-4246-45.1.64.","productDescription":"13 p.","startPage":"64","endPage":"76","ipdsId":"IP-018916","costCenters":[{"id":118,"text":"Alaska Science Center Geography","active":true,"usgs":true}],"links":[{"id":473641,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1657/1938-4246-45.1.64","text":"Publisher Index Page"},{"id":275517,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":275509,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1657/1938-4246-45.1.64"}],"country":"United States","state":"Alaska","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -151.3861,68.8704 ], [ -151.3861,69.311 ], [ -149.7285,69.311 ], [ -149.7285,68.8704 ], [ -151.3861,68.8704 ] ] ] } } ] }","volume":"45","issue":"1","noUsgsAuthors":false,"publicationDate":"2018-01-05","publicationStatus":"PW","scienceBaseUri":"51f780d6e4b02e26443a932d","contributors":{"authors":[{"text":"Kolden, Crystal A.","contributorId":98610,"corporation":false,"usgs":true,"family":"Kolden","given":"Crystal","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":476287,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rogan, John","contributorId":83008,"corporation":false,"usgs":true,"family":"Rogan","given":"John","email":"","affiliations":[],"preferred":false,"id":476286,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70047270,"text":"70047270 - 2013 - The role of vermetid gastropods in the development of the Florida Middle Ground, northeast Gulf of Mexico","interactions":[],"lastModifiedDate":"2013-07-29T13:53:24","indexId":"70047270","displayToPublicDate":"2013-07-29T13:42:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2220,"text":"Journal of Coastal Research","active":true,"publicationSubtype":{"id":10}},"title":"The role of vermetid gastropods in the development of the Florida Middle Ground, northeast Gulf of Mexico","docAbstract":"The Florida Middle Ground is a complex of north to northwest trending ridges that lie approximately 180 km northwest of Tampa Bay, Florida. The irregular ridges appear on the otherwise gently sloping West Florida shelf and exhibit between 10-15 m of relief. Modern studies interpret the ridges as remnants of a Holocene coral-reef buildup that today provide a hard substrate for growth of a variety of benthic organisms including hydrocorals, scleractinians, alcyonarians, and algae. Recent rotary coring reveals that the core of the eastern ridge of the Florida Middle Ground complex consists of unconsolidated marine calcareous muddy sand that is capped by a boundstone composed primarily of the sessile vermetid gastropod <i>Petaloconchus</i> sp., and overlays a weathered, fossiliferous limestone. Accelerator Mass Spectrometry radiocarbon ages (uncalibrated) on the 3.6-m thick vermetid worm rock indicate that it developed during a sea-level stillstand in the early Holocene (8,225 &plusmn;30-8,910 &plusmn; 25 yr B.P.). Our observations suggest that the Florida Middle Ground is a remnant of a series of shore parallel bars that formed in the early Holocene and were capped by a 3.6-m thick unit of vermetid gastropods. During a rapid sea-level rise that began ~8,000 yr B.P. the vermetids growth ceased and the worm rock preserved the ridges structure. Diver observations document that the edges of the ridges are currently being eroded and undermined by biological activity and current action, leading to calving of large capstone blocks.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Coastal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Journal of Coastal Research","doi":"10.2112/SI63-005.1","usgsCitation":"Reich, C.D., Poore, R.Z., and Hickey, T.D., 2013, The role of vermetid gastropods in the development of the Florida Middle Ground, northeast Gulf of Mexico: Journal of Coastal Research, p. 46-57, https://doi.org/10.2112/SI63-005.1.","productDescription":"12 p.","startPage":"46","endPage":"57","numberOfPages":"12","ipdsId":"IP-037412","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":275512,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":275510,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2112/SI63-005.1"}],"country":"United States","state":"Florida","otherGeospatial":"Florida Middle Ground","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -84.9077,27.3348 ], [ -84.9077,29.539 ], [ -82.6125,29.539 ], [ -82.6125,27.3348 ], [ -84.9077,27.3348 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f780d7e4b02e26443a933d","contributors":{"authors":[{"text":"Reich, Christopher D. 0000-0002-2534-1456 creich@usgs.gov","orcid":"https://orcid.org/0000-0002-2534-1456","contributorId":900,"corporation":false,"usgs":true,"family":"Reich","given":"Christopher","email":"creich@usgs.gov","middleInitial":"D.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":481576,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Poore, Richard Z. rpoore@usgs.gov","contributorId":345,"corporation":false,"usgs":true,"family":"Poore","given":"Richard","email":"rpoore@usgs.gov","middleInitial":"Z.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":481575,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hickey, Todd D.","contributorId":34255,"corporation":false,"usgs":true,"family":"Hickey","given":"Todd","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":481577,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70047273,"text":"70047273 - 2013 - Sr/Ca proxy sea-surface temperature reconstructions from modern and holocene Montastraea faveolata specimens from the Dry Tortugas National Park","interactions":[],"lastModifiedDate":"2022-11-14T17:03:04.804013","indexId":"70047273","displayToPublicDate":"2013-07-29T13:23:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2220,"text":"Journal of Coastal Research","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Sr/Ca proxy sea-surface temperature reconstructions from modern and holocene <i>Montastraea faveolata</i> specimens from the Dry Tortugas National Park","title":"Sr/Ca proxy sea-surface temperature reconstructions from modern and holocene Montastraea faveolata specimens from the Dry Tortugas National Park","docAbstract":"<p>Sr/Ca ratios from skeletal samples from two <i>Montastraea faveolata</i> corals (one modern, one Holocene, ~6 Ka) from the Dry Tortugas National Park were measured as a proxy for sea-surface temperature (SST). We sampled coral specimens with a computer-driven triaxial micromilling machine, which yielded an average of 15 homogenous samples per annual growth increment. We regressed Sr/Ca values from resulting powdered samples against a local SST record to obtain a calibration equation of Sr/Ca = -0.0392 SST + 10.205, R = -0.97. The resulting calibration was used to generate a 47-year modern (1961-2008) and a 7-year Holocene (~6 Ka) Sr/Ca subannually resolved proxy record of SST. The modern <i>M. faveolata</i> yields well-defined annual Sr/Ca cycles ranging in amplitude from ~0.3 and 0.5 mmol/mol. The amplitude of ~0.3 to 0.5 mmol/mol equates to a 10-15&deg;C seasonal SST amplitude, which is consistent with available local instrumental records. Summer maxima proxy SSTs calculated from the modern coral Sr/ Ca tend to be fairly stable: most SST maxima from 1961&ndash;2008 are 29&deg;C &plusmn; 1&deg;C. In contrast, winter minimum SST calculated in the 47-year modern time-series are highly variable, with a cool interval in the early to mid-1970s. The Holocene (~6 Ka) <i>Montastraea faveolata</i> coral also yields distinct annual Sr/Ca cycles with amplitudes ranging from ~0.3 to 0.6 mmol/mol. Absolute Sr/Ca values and thus resulting SST estimates over the ~7-year long record are similar to those from the modern coral. We conclude that Sr/Ca from <i>Montastraea faveolata</i> has high potential for developing subannually resolved Holocene SST records.</p>","language":"English","publisher":"Coastal Education and Research Foundation","doi":"10.2112/SI63-003.1","usgsCitation":"Flannery, J.A., and Poore, R.Z., 2013, Sr/Ca proxy sea-surface temperature reconstructions from modern and holocene Montastraea faveolata specimens from the Dry Tortugas National Park: Journal of Coastal Research, v. 63, no. SP1, p. 20-31, https://doi.org/10.2112/SI63-003.1.","productDescription":"12 p.","startPage":"20","endPage":"31","numberOfPages":"12","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-034337","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":275508,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Dry Tortugas National Park","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -82.76726792345106,\n              24.668847526359244\n            ],\n            [\n              -82.7662420584935,\n              24.702403637588674\n            ],\n            [\n              -82.80112146703877,\n              24.725701175795734\n            ],\n            [\n              -82.86369922942924,\n              24.72476935798862\n            ],\n            [\n              -82.90165623284628,\n              24.71731456433045\n            ],\n            [\n              -82.96731159010801,\n              24.652066084419502\n            ],\n            [\n              -82.96628572515093,\n              24.564393037813716\n            ],\n            [\n              -82.8944751781457,\n              24.565326053015824\n            ],\n            [\n              -82.79906973712458,\n              24.612900615057384\n            ],\n            [\n              -82.7662420584935,\n              24.66791528323482\n            ],\n            [\n              -82.76726792345106,\n              24.668847526359244\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"63","issue":"SP1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f780d7e4b02e26443a9339","contributors":{"authors":[{"text":"Flannery, Jennifer A. 0000-0002-1692-2662 jflannery@usgs.gov","orcid":"https://orcid.org/0000-0002-1692-2662","contributorId":4317,"corporation":false,"usgs":true,"family":"Flannery","given":"Jennifer","email":"jflannery@usgs.gov","middleInitial":"A.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":481582,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Poore, Richard Z. rpoore@usgs.gov","contributorId":345,"corporation":false,"usgs":true,"family":"Poore","given":"Richard","email":"rpoore@usgs.gov","middleInitial":"Z.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":481581,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70189924,"text":"70189924 - 2013 - New Method for Electrical Conductivity Temperature Compensation","interactions":[],"lastModifiedDate":"2017-08-23T09:29:44","indexId":"70189924","displayToPublicDate":"2013-07-29T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"New Method for Electrical Conductivity Temperature Compensation","docAbstract":"<p>Electrical conductivity (κ) measurements of natural waters are typically referenced to 25 °C (κ<sub>25</sub>) using standard temperature compensation factors (α). For acidic waters (pH &lt; 4), this can result in a large κ<sub>25</sub> error (δκ<sub>25</sub>). The more the sample temperature departs from 25 °C, the larger the potential δκ<sub>25</sub>. For pH &lt; 4, the hydrogen ion transport number becomes substantial and its mode of transport is different from most other ions resulting in a different α. A new method for determining α as a function of pH and temperature is presented. Samples with varying amounts of H<sub>2</sub>SO<sub>4</sub> and NaCl were used to develop the new α, which was then applied to 65 natural water samples including acid mine waters, geothermal waters, seawater, and stream waters. For each sample, the κ and pH were measured at several temperatures from 5 to 90 °C and κ<sub>25</sub> was calculated. The δκ<sub>25</sub> ranged from −11 to 9% for the new method as compared to −42 to 25% and −53 to 27% for the constant α (0.019) and ISO-7888 methods, respectively. The new method for determining α is a substantial improvement for acidic waters and performs as well as or better than the standard methods for circumneutral waters.</p>","language":"English","publisher":"American Chemical Society","doi":"10.1021/es402188r","usgsCitation":"McCleskey, R.B., 2013, New Method for Electrical Conductivity Temperature Compensation: Environmental Science & Technology, v. 47, no. 17, p. 9874-9881, https://doi.org/10.1021/es402188r.","productDescription":"8 p.","startPage":"9874","endPage":"9881","ipdsId":"IP-046099","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":344473,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"17","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2013-08-15","publicationStatus":"PW","scienceBaseUri":"5980419ce4b0a38ca2789369","contributors":{"authors":[{"text":"McCleskey, R. Blaine 0000-0002-2521-8052 rbmccles@usgs.gov","orcid":"https://orcid.org/0000-0002-2521-8052","contributorId":147399,"corporation":false,"usgs":true,"family":"McCleskey","given":"R.","email":"rbmccles@usgs.gov","middleInitial":"Blaine","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":706782,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70118399,"text":"70118399 - 2013 - Pb-Sr-Nd isotopes in surficial materials at the Pebble Porphyry Cu-Au-Mo Deposit, Southwestern Alaska: can the mineralizing fingerprint be detected through cover?","interactions":[],"lastModifiedDate":"2018-10-15T08:55:16","indexId":"70118399","displayToPublicDate":"2013-07-28T16:42:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Pb-Sr-Nd isotopes in surficial materials at the Pebble Porphyry Cu-Au-Mo Deposit, Southwestern Alaska: can the mineralizing fingerprint be detected through cover?","docAbstract":"The Cretaceous Pebble porphyry Cu-Au-Mo deposit is covered by tundra and glacigenic sediments. Pb-Sr-Nd measurements were done on sediments and soils to establish baseline conditions prior to the onset of mining operations and contribute to the development of exploration methods for concealed base metal deposits of this type. Pebble rocks have a moderate range for <sup>206</sup>Pb/<sup>204</sup>Pb = 18.574 to 18.874, <sup>207</sup>Pb/<sup>204</sup>Pb = 15.484 to 15.526, and <sup>208,</sup>Pb/<sup>204</sup>Pb = 38.053 to 38.266. Mineralized granodiorite shows a modest spread in <sup>87</sup>Sr/<sup>86</sup>Sr (0.704354–0.707621) and <sup>143</sup>Nd/<sup>144</sup>Nd (0.512639–0.512750). Age-corrected (89 Ma) values for the granodiorite yield relatively unradiogenic Pb (e.g., <sup>207</sup>Pb/<sup>204</sup>Pb <15.52), low values of <sup>87</sup>Sr/<sup>86</sup>Sr, and positive values of ɛNd (1.00–4.52) that attest to a major contribution of mantle-derived source rocks. Pond sediments and soils have similar Pb isotope signatures and <sup>87</sup>Sr/<sup>86</sup>Sr and <sup>143</sup>Nd/<sup>144</sup>Nd values that resemble the mineralized granodiorites. Glacial events have obscured the recognition of isotope signatures of mineralized rocks in the sediments and soils. Baseline radiogenic isotope compositions, prior to the onset of mining operations, reflect natural erosion, transport and deposition of heterogeneous till sheets that included debris from barren rocks, mineralized granodiorite and sulfides from the Pebble deposit, and other country rocks that pre- and postdate the mineralization events. Isotopic variations suggest that natural weathering of the deposit is generally reflected in these surficial materials. The isotope data provide geochemical constraints to glimpse through the extensive cover and together with other geochemical observations provide a vector to concealed mineralized rocks genetically linked with the Pebble deposit.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Economic Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/econgeo.108.3.543","usgsCitation":"Ayuso, R.A., Kelley, K., Eppinger, R.G., and Forni, F., 2013, Pb-Sr-Nd isotopes in surficial materials at the Pebble Porphyry Cu-Au-Mo Deposit, Southwestern Alaska: can the mineralizing fingerprint be detected through cover?: Economic Geology, v. 108, no. 3, p. 543-563, https://doi.org/10.2113/econgeo.108.3.543.","productDescription":"21 p.","startPage":"543","endPage":"563","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":291231,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":291230,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2113/econgeo.108.3.543"}],"country":"United States","state":"Alaska","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -155.333333,59.866667 ], [ -155.333333,59.95 ], [ -155.233333,59.95 ], [ -155.233333,59.866667 ], [ -155.333333,59.866667 ] ] ] } } ] }","volume":"108","issue":"3","noUsgsAuthors":false,"publicationDate":"2013-03-07","publicationStatus":"PW","scienceBaseUri":"57f7f286e4b0bc0bec0a0422","contributors":{"authors":[{"text":"Ayuso, Robert A. 0000-0002-8496-9534 rayuso@usgs.gov","orcid":"https://orcid.org/0000-0002-8496-9534","contributorId":2654,"corporation":false,"usgs":true,"family":"Ayuso","given":"Robert","email":"rayuso@usgs.gov","middleInitial":"A.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":496883,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kelley, Karen D. 0000-0002-3232-5809","orcid":"https://orcid.org/0000-0002-3232-5809","contributorId":57817,"corporation":false,"usgs":true,"family":"Kelley","given":"Karen D.","affiliations":[],"preferred":false,"id":496885,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Eppinger, Robert G. eppinger@usgs.gov","contributorId":849,"corporation":false,"usgs":true,"family":"Eppinger","given":"Robert","email":"eppinger@usgs.gov","middleInitial":"G.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":496882,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Forni, Francesca","contributorId":27371,"corporation":false,"usgs":true,"family":"Forni","given":"Francesca","email":"","affiliations":[],"preferred":false,"id":496884,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70118398,"text":"70118398 - 2013 - A combined radio- and stable-isotopic study of a California coastal aquifer system","interactions":[],"lastModifiedDate":"2018-09-27T10:53:11","indexId":"70118398","displayToPublicDate":"2013-07-28T16:23:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3709,"text":"Water","active":true,"publicationSubtype":{"id":10}},"title":"A combined radio- and stable-isotopic study of a California coastal aquifer system","docAbstract":"Stable and radioactive tracers were utilized in concert to characterize geochemical processes in a complex coastal groundwater system and to provide constraints on the kinetics of rock/water interactions. Groundwater samples from wells within the Dominguez Gap region of Los Angeles County, California were analyzed for a suite of major cations (Na<sup>+</sup>, K<sup>+</sup>, Mg<sup>2+</sup>, Ca<sup>2+</sup>) and anions (Cl<sup>−</sup>, SO<sub>4</sub><sup>2−</sup>), silica, alkalinity, select trace elements (Ba, B, Sr), dissolved oxygen, stable isotopes of hydrogen (δD), oxygen (δ<sup>18</sup>O), dissolved inorganic carbon (δ<sup>13</sup>C<sub>DIC</sub>), and radioactive isotopes (<sup>3</sup>H, <sup>222</sup>Rn and <sup>223,224,226,228</sup>Ra). In the study area, groundwater may consist of a complex mixture of native groundwater, intruded seawater, non-native injected water, and oil-field brine water. In some wells, Cl<sup>−</sup> concentrations attained seawater-like values and in conjunction with isotopically heavier δ<sup>18</sup>O values, these tracers provide information on the extent of seawater intrusion and/or mixing with oil-field brines. Groundwater <sup>3</sup>H above 1 tritium unit (TU) was observed only in a few select wells close to the Dominguez Gap area and most other well groundwater was aged pre-1952. Based on an initial <sup>14</sup>C value for the study site of 90 percent modern carbon (pmc), groundwater age estimates likely extend beyond 20 kyr before present and confirm deep circulation of some native groundwater through multiple aquifers. Enriched values of groundwater δ<sup>13</sup>C<sub>DIC</sub> in the absence of SO<sub>4</sub><sup>2−</sup> imply enhanced anaerobic microbial methanogenesis. While secular equilibrium was observed for <sup>234</sup>U/<sup>238</sup>U (activity ratios ~1) in host matrices, strong isotopic fractionation in these groundwater samples can be used to obtain information of adsorption/desorption kinetics. Calculated Ra residence times are short, and the associated desorption rate constant is about three orders of magnitude slower than that of the adsorption rate constant. Combined stable- and radio-isotopic results provide unique insights into aquifer characteristics, such as geochemical cycling, rock/water interactions, and subsurface transport and mixing.","language":"English","publisher":"Multidisciplinary Digital Publishing Institute","doi":"10.3390/w5020480","usgsCitation":"Swarzenski, P.W., Baskaran, M., Rosenbauer, R.J., Edwards, B.D., and Land, M., 2013, A combined radio- and stable-isotopic study of a California coastal aquifer system: Water, v. 5, no. 2, p. 480-504, https://doi.org/10.3390/w5020480.","productDescription":"25 p.","startPage":"480","endPage":"504","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":473642,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3390/w5020480","text":"Publisher Index Page"},{"id":291225,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":291224,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3390/w5020480"}],"country":"United States","state":"California","county":"Los Angeles County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118.9449,32.7984 ], [ -118.9449,34.8232 ], [ -117.6456,34.8232 ], [ -117.6456,32.7984 ], [ -118.9449,32.7984 ] ] ] } } ] }","volume":"5","issue":"2","noUsgsAuthors":false,"publicationDate":"2013-04-19","publicationStatus":"PW","scienceBaseUri":"57f7f286e4b0bc0bec0a0424","contributors":{"authors":[{"text":"Swarzenski, Peter W. 0000-0003-0116-0578 pswarzen@usgs.gov","orcid":"https://orcid.org/0000-0003-0116-0578","contributorId":1070,"corporation":false,"usgs":true,"family":"Swarzenski","given":"Peter","email":"pswarzen@usgs.gov","middleInitial":"W.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":496878,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Baskaran, Mark","contributorId":87867,"corporation":false,"usgs":false,"family":"Baskaran","given":"Mark","email":"","affiliations":[{"id":7147,"text":"Wayne State University","active":true,"usgs":false}],"preferred":false,"id":496881,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rosenbauer, Robert J. brosenbauer@usgs.gov","contributorId":204,"corporation":false,"usgs":true,"family":"Rosenbauer","given":"Robert","email":"brosenbauer@usgs.gov","middleInitial":"J.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":496877,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Edwards, Brian D. bedwards@usgs.gov","contributorId":3161,"corporation":false,"usgs":true,"family":"Edwards","given":"Brian","email":"bedwards@usgs.gov","middleInitial":"D.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":496879,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Land, Michael 0000-0001-5141-0307","orcid":"https://orcid.org/0000-0001-5141-0307","contributorId":56613,"corporation":false,"usgs":true,"family":"Land","given":"Michael","affiliations":[],"preferred":false,"id":496880,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70118301,"text":"70118301 - 2013 - Current research issues related to post-wildfire runoff and erosion processes","interactions":[],"lastModifiedDate":"2017-07-11T15:51:13","indexId":"70118301","displayToPublicDate":"2013-07-28T12:40:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1431,"text":"Earth-Science Reviews","active":true,"publicationSubtype":{"id":10}},"title":"Current research issues related to post-wildfire runoff and erosion processes","docAbstract":"Research into post-wildfire effects began in the United States more than 70 years ago and only later extended to other parts of the world. Post-wildfire responses are typically transient, episodic, variable in space and time, dependent on thresholds, and involve multiple processes measured by different methods. These characteristics tend to hinder research progress, but the large empirical knowledge base amassed in different regions of the world suggests that it should now be possible to synthesize the data and make a substantial improvement in the understanding of post-wildfire runoff and erosion response. Thus, it is important to identify and prioritize the research issues related to post-wildfire runoff and erosion. Priority research issues are the need to: (1) organize and synthesize similarities and differences in post-wildfire responses between different fire-prone regions of the world in order to determine common patterns and generalities that can explain cause and effect relations; (2) identify and quantify functional relations between metrics of fire effects and soil hydraulic properties that will better represent the dynamic and transient conditions after a wildfire; (3) determine the interaction between burned landscapes and temporally and spatially variable meso-scale precipitation, which is often the primary driver of post-wildfire runoff and erosion responses; (4) determine functional relations between precipitation, basin morphology, runoff connectivity, contributing area, surface roughness, depression storage, and soil characteristics required to predict the timing, magnitudes, and duration of floods and debris flows from ungaged burned basins; and (5) develop standard measurement methods that will ensure the collection of uniform and comparable runoff and erosion data. Resolution of these issues will help to improve conceptual and computer models of post-wildfire runoff and erosion processes.","language":"English","publisher":"Elsevier","doi":"10.1016/j.earscirev.2013.03.004","usgsCitation":"Moody, J.A., Shakesby, R., Robichaud, P., Cannon, S.H., and Martin, D.A., 2013, Current research issues related to post-wildfire runoff and erosion processes: Earth-Science Reviews, v. 122, p. 10-37, https://doi.org/10.1016/j.earscirev.2013.03.004.","productDescription":"28 p.","startPage":"10","endPage":"37","ipdsId":"IP-037471","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":291156,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":291155,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.earscirev.2013.03.004"}],"volume":"122","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57f7f286e4b0bc0bec0a042e","contributors":{"authors":[{"text":"Moody, John A. 0000-0003-2609-364X jamoody@usgs.gov","orcid":"https://orcid.org/0000-0003-2609-364X","contributorId":771,"corporation":false,"usgs":true,"family":"Moody","given":"John","email":"jamoody@usgs.gov","middleInitial":"A.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":496714,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shakesby, Richard A.","contributorId":72314,"corporation":false,"usgs":true,"family":"Shakesby","given":"Richard A.","affiliations":[],"preferred":false,"id":496717,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Robichaud, Peter R.","contributorId":102782,"corporation":false,"usgs":true,"family":"Robichaud","given":"Peter R.","affiliations":[],"preferred":false,"id":496718,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cannon, Susan H. cannon@usgs.gov","contributorId":1019,"corporation":false,"usgs":true,"family":"Cannon","given":"Susan","email":"cannon@usgs.gov","middleInitial":"H.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":496715,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Martin, Deborah A. 0000-0001-8237-0838 damartin@usgs.gov","orcid":"https://orcid.org/0000-0001-8237-0838","contributorId":1900,"corporation":false,"usgs":true,"family":"Martin","given":"Deborah","email":"damartin@usgs.gov","middleInitial":"A.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":496716,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70118239,"text":"70118239 - 2013 - cBathy: A robust algorithm for estimating nearshore bathymetry","interactions":[],"lastModifiedDate":"2014-07-28T09:42:35","indexId":"70118239","displayToPublicDate":"2013-07-28T09:38:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2315,"text":"Journal of Geophysical Research C: Oceans","active":true,"publicationSubtype":{"id":10}},"title":"cBathy: A robust algorithm for estimating nearshore bathymetry","docAbstract":"A three-part algorithm is described and tested to provide robust bathymetry maps based solely on long time series observations of surface wave motions. The first phase consists of frequency-dependent characterization of the wave field in which dominant frequencies are estimated by Fourier transform while corresponding wave numbers are derived from spatial gradients in cross-spectral phase over analysis tiles that can be small, allowing high-spatial resolution. Coherent spatial structures at each frequency are extracted by frequency-dependent empirical orthogonal function (EOF). In phase two, depths are found that best fit weighted sets of frequency-wave number pairs. These are subsequently smoothed in time in phase 3 using a Kalman filter that fills gaps in coverage and objectively averages new estimates of variable quality with prior estimates. Objective confidence intervals are returned. Tests at Duck, NC, using 16 surveys collected over 2 years showed a bias and root-mean-square (RMS) error of 0.19 and 0.51 m, respectively but were largest near the offshore limits of analysis (roughly 500 m from the camera) and near the steep shoreline where analysis tiles mix information from waves, swash and static dry sand. Performance was excellent for small waves but degraded somewhat with increasing wave height. Sand bars and their small-scale alongshore variability were well resolved. A single ground truth survey from a dissipative, low-sloping beach (Agate Beach, OR) showed similar errors over a region that extended several kilometers from the camera and reached depths of 14 m. Vector wave number estimates can also be incorporated into data assimilation models of nearshore dynamics.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research C: Oceans","largerWorkSubtype":{"id":10,"text":"Journal Article"},"publisher":"Journal of Geophysical Research: Oceans","doi":"10.1002/jgrc.20199","usgsCitation":"Plant, N.G., Holman, R., and Holland, K.T., 2013, cBathy: A robust algorithm for estimating nearshore bathymetry: Journal of Geophysical Research C: Oceans, v. 118, no. 5, p. 2595-2609, https://doi.org/10.1002/jgrc.20199.","productDescription":"15 p.","startPage":"2595","endPage":"2609","ipdsId":"IP-040687","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":291099,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":291078,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/jgrc.20199"}],"country":"United States","state":"North Carolina","city":"Duck","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -75.776116,36.150973 ], [ -75.776116,36.231587 ], [ -75.736833,36.231587 ], [ -75.736833,36.150973 ], [ -75.776116,36.150973 ] ] ] } } ] }","volume":"118","issue":"5","noUsgsAuthors":false,"publicationDate":"2013-05-22","publicationStatus":"PW","scienceBaseUri":"57f7f287e4b0bc0bec0a0434","contributors":{"authors":[{"text":"Plant, Nathaniel G. 0000-0002-5703-5672 nplant@usgs.gov","orcid":"https://orcid.org/0000-0002-5703-5672","contributorId":3503,"corporation":false,"usgs":true,"family":"Plant","given":"Nathaniel","email":"nplant@usgs.gov","middleInitial":"G.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true},{"id":508,"text":"Office of the AD Hazards","active":true,"usgs":true}],"preferred":true,"id":496487,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Holman, Rob","contributorId":46432,"corporation":false,"usgs":true,"family":"Holman","given":"Rob","affiliations":[],"preferred":false,"id":496488,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Holland, K. Todd","contributorId":68748,"corporation":false,"usgs":true,"family":"Holland","given":"K.","email":"","middleInitial":"Todd","affiliations":[],"preferred":false,"id":496489,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70047262,"text":"ofr20131144 - 2013 - Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in south San Francisco Bay, California, 2012","interactions":[],"lastModifiedDate":"2013-07-27T11:45:43","indexId":"ofr20131144","displayToPublicDate":"2013-07-27T11:32:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2013-1144","title":"Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in south San Francisco Bay, California, 2012","docAbstract":"Trace-metal concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica), clam reproductive activity, and benthic macroinvertebrate community structure were investigated in a mudflat 1 kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant (PARWQCP) in South San Francisco Bay, Calif. This report includes the data collected by U.S. Geological Survey (USGS) scientists for the period January to December 2012. These data serve as the basis for the City of Palo Alto’s Near-Field Receiving Water Monitoring Program, initiated in 1994.\n\nFollowing significant reductions in the late 1980s, silver (Ag) and copper (Cu) concentrations in sediment and in M. petalum appear to have stabilized. Data for other metals, including chromium (Cr), mercury (Hg), nickel (Ni), selenium (Se), and zinc (Zn), have been collected since 1994. Over this period, concentrations of these elements have remained relatively constant, aside from seasonal variation that is common to all elements. In 2012, concentrations of Ag and Cu in M. petalum varied seasonally in response to a combination of site-specific metal exposures and annual growth and reproduction, as reported for previous time periods. Seasonal patterns for other elements, including Cr, Ni, Zn, Hg, and Se were generally similar in timing and magnitude as those for Ag and Cu. In 2012, metal concentrations in both sediments and clam tissue were among the lowest concentrations on record. This record suggests that regional-scale factors now largely control sedimentary and bioavailable concentrations of Ag and Cu, as well as other elements of regulatory interest, at the Palo Alto site.\n\nAnalyses of the benthic community structure of a mudflat in South San Francisco Bay over a 39-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinel clam, M. petalum, from the same area. Analysis of the M. petalum community shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissues of this organism. Reproductive activity is presently stable (2012), with almost all animals initiating reproduction in the fall and spawning the following spring. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that indicates a more stable community that is subjected to fewer stressors. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes have shown a continual decline in dominance coincident with the decline in metals; both species had short-lived rebounds in abundance in 2008, 2009, and 2010. Heteromastus filiformis (a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the sediment, and reproduces by laying its eggs on or in the sediment) showed a concurrent increase in dominance and, in the last several years before 2008, showed a stable population. H. filiformis abundance increased slightly in 2011–2012. An unidentified disturbance occurred on the mudflat in early 2008 that resulted in the loss of the benthic animals, except for those deep-dwelling animals like Macoma petalum. Animals immediately returned to the mudflat in 2008, which was the first indication that the disturbance was not due to a persistent toxin or to anoxia. The reproductive mode of most species present in 2012 is reflective of the species that were available either as pelagic larvae or as mobile adults. Although oviparous species were lower in number in this group, the authors hypothesize that these species will return slowly as more species move back into the area. The use of functional ecology was highlighted in the 2012 benthic community data, which show that the animals that have now returned to the mudflat are those that can respond successfully to a physical, nontoxic disturbance. Today, community data show a mix of animals that consume the sediment, filter feed, have pelagic larvae that must survive landing on the sediment, and brood their young. USGS scientists continue to observe the community’s response to the 2008 defaunation event because it allows them to examine the response of the community to a natural disturbance (possible causes include sediment accretion or freshwater inundation) and compare this recovery to the long-term recovery observed in the 1970s when the decline in sediment pollutants was the dominating factor.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20131144","collaboration":"Prepared in cooperation with the City of Palo Alto, California","usgsCitation":"Dyke, J., Thompson, J.K., Cain, D.J., Kleckner, A.E., Parcheso, F., Luoma, S.N., and Hornberger, M.I., 2013, Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in south San Francisco Bay, California, 2012: U.S. Geological Survey Open-File Report 2013-1144, vi, 109 p.; Tables; Appendixes, https://doi.org/10.3133/ofr20131144.","productDescription":"vi, 109 p.; Tables; Appendixes","numberOfPages":"117","onlineOnly":"Y","additionalOnlineFiles":"Y","temporalStart":"2012-01-01","temporalEnd":"2012-12-31","costCenters":[{"id":434,"text":"National Research Program","active":false,"usgs":true}],"links":[{"id":275491,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20131144.gif"},{"id":275489,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2013/1144/of2013-1144_tables.xlsx"},{"id":275490,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/of/2013/1144/of2013-1144_appendixes.xlsx"},{"id":275487,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2013/1144/"},{"id":275488,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2013/1144/of2013-1144_text.pdf"}],"country":"United States","state":"California","otherGeospatial":"San Francisco Bay","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.75,36.75 ], [ -122.75,38.5 ], [ -121.5,38.5 ], [ -121.5,36.75 ], [ -122.75,36.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f4ddd9e4b0838938b28033","contributors":{"authors":[{"text":"Dyke, Jessica jldyke@usgs.gov","contributorId":1035,"corporation":false,"usgs":true,"family":"Dyke","given":"Jessica","email":"jldyke@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":false,"id":481556,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thompson, Janet K. 0000-0002-1528-8452 jthompso@usgs.gov","orcid":"https://orcid.org/0000-0002-1528-8452","contributorId":1009,"corporation":false,"usgs":true,"family":"Thompson","given":"Janet","email":"jthompso@usgs.gov","middleInitial":"K.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true}],"preferred":true,"id":481555,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cain, Daniel J. 0000-0002-3443-0493 djcain@usgs.gov","orcid":"https://orcid.org/0000-0002-3443-0493","contributorId":1784,"corporation":false,"usgs":true,"family":"Cain","given":"Daniel","email":"djcain@usgs.gov","middleInitial":"J.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":481558,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kleckner, Amy E. kleckner@usgs.gov","contributorId":4258,"corporation":false,"usgs":true,"family":"Kleckner","given":"Amy","email":"kleckner@usgs.gov","middleInitial":"E.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":481561,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Parcheso, Francis 0000-0002-9471-7787 parchaso@usgs.gov","orcid":"https://orcid.org/0000-0002-9471-7787","contributorId":2590,"corporation":false,"usgs":true,"family":"Parcheso","given":"Francis","email":"parchaso@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":false,"id":481560,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Luoma, Samuel N. 0000-0001-5443-5091 snluoma@usgs.gov","orcid":"https://orcid.org/0000-0001-5443-5091","contributorId":2287,"corporation":false,"usgs":true,"family":"Luoma","given":"Samuel","email":"snluoma@usgs.gov","middleInitial":"N.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":481559,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hornberger, Michelle I. 0000-0002-7787-3446 mhornber@usgs.gov","orcid":"https://orcid.org/0000-0002-7787-3446","contributorId":1037,"corporation":false,"usgs":true,"family":"Hornberger","given":"Michelle","email":"mhornber@usgs.gov","middleInitial":"I.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":481557,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70047261,"text":"ofr20131150 - 2013 - Abundance, distribution, and population trends of the iconic Hawaiian Honeycreeper, the ʻIʻiwi (Vestiaria coccinea) throughout the Hawaiian Islands","interactions":[],"lastModifiedDate":"2013-07-27T11:27:51","indexId":"ofr20131150","displayToPublicDate":"2013-07-27T11:22:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2013-1150","title":"Abundance, distribution, and population trends of the iconic Hawaiian Honeycreeper, the ʻIʻiwi (Vestiaria coccinea) throughout the Hawaiian Islands","docAbstract":"Naturalists in the 1800s described the ʻIʻiwi (Vestiaria coccinea) as one of the most abundant forest birds, detected in forested areas from sea level to tree line across all the major Hawaiian Islands. However, in the late 1800s, ʻIʻiwi began to disappear from low elevation forests, and by the mid-1900s, the species was largely absent from low- and mid-elevation areas. Today, ʻIʻiwi are restricted to high-elevation forests on the islands of Hawaiʻi, east Maui, and Kauaʻi, with a few birds apparently persisting on Oʻahu, Molokaʻi, and west Maui. ʻIʻiwi are highly vulnerable to introduced disease, and the prevalence of avian malaria in low and mid-elevations is believed to be the cause of ʻIʻiwi being restricted to high elevations where temperatures are too cold for the development of the disease and its mosquito vector. With global warming, it is feared that the disease will move quickly into the high-elevation forests where the last ʻIʻiwi reside, threatening their viability. The U.S. Fish and Wildlife Service was petitioned to list the ʻIʻiwi as an Endangered Species in 2010, and this report provides a comprehensive review of the abundance, distribution, and trends using historical survey data as well as the most recently available survey information (up to 2012). We estimate the total population size of ‘I‘iwi at 550,972–659,864 (mean = 605,418) individuals. Of these, 90 percent are on the island of Hawaiʻi, followed by east Maui (about 10 percent), with less than 1 percent on Kauaʻi. ʻIʻiwi population trends vary across the islands. ʻIʻiwi population in Kauaʻi has experienced sharp declines, with a projected trend of 92 percent decline over a 25 year period based on the 2000–2012 surveys. On East Maui, the northeastern region has experienced declines (34 percent over a 25 year period), while the southeastern region has been stable to moderately increasing. On the island of Hawaiʻi, population trends are mixed. On the windward side, populations are largely declining, although the northern section (Hakalau Forest) has stable populations. On the leeward side, results suggest a strongly increasing population, with estimates of as much as a 147 percent increase over a 25 year period from the Puʻu Waʻawaʻa region. However, it is unclear how much these results from the leeward side of Hawaiʻi show a population trend contrary to population trends in all other areas or are an artifact of a sparsely sampled area. Trends by elevation suggest a large decrease in numbers of ʻIʻiwi at elevations below 1,200 meters on Kauaʻi and northeast Maui. Low elevation ʻIʻiwi populations also appear to have decreased in other regions, although low-elevation areas are not surveyed as often as other areas because of their lack of native forest birds. An exception to this pattern was the lower portions of the Hakalau Forest National Wildlife Refuge Kona Unit in the central leeward part of the island of Hawaiʻi, where populations appeared stable at the lower elevations. Based on the most recent surveys (up to 2012), approximately 50 percent of ʻIʻiwi live in a narrow, 500-meter band at elevations of 1,200–1,700 meters, suggesting that ʻIʻiwi are vulnerable to future shifts in climate.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20131150","collaboration":"Prepared in cooperation with Hawai‘i Cooperative Studies Unit, University of Hawaiʻi Hilo","usgsCitation":"Paxton, E.H., Gorresen, P.M., and Camp, R., 2013, Abundance, distribution, and population trends of the iconic Hawaiian Honeycreeper, the ʻIʻiwi (Vestiaria coccinea) throughout the Hawaiian Islands: U.S. Geological Survey Open-File Report 2013-1150, iv, 59 p., https://doi.org/10.3133/ofr20131150.","productDescription":"iv, 59 p.","numberOfPages":"63","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[{"id":521,"text":"Pacific Island Ecosystems Research Center","active":false,"usgs":true}],"links":[{"id":275486,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20131150.jpg"},{"id":275484,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2013/1150/"},{"id":275485,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2013/1150/pdf/ofr20131150.pdf"}],"country":"United States","state":"Hawai'i","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -178.31,18.91 ], [ -178.31,28.4 ], [ -154.81,28.4 ], [ -154.81,18.91 ], [ -178.31,18.91 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f4ddd1e4b0838938b2802b","contributors":{"authors":[{"text":"Paxton, Eben H. 0000-0001-5578-7689","orcid":"https://orcid.org/0000-0001-5578-7689","contributorId":19640,"corporation":false,"usgs":true,"family":"Paxton","given":"Eben","email":"","middleInitial":"H.","affiliations":[{"id":5049,"text":"Pacific Islands Ecosys Research Center","active":true,"usgs":true}],"preferred":true,"id":481552,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gorresen, P. Marcos mgorresen@usgs.gov","contributorId":37020,"corporation":false,"usgs":true,"family":"Gorresen","given":"P.","email":"mgorresen@usgs.gov","middleInitial":"Marcos","affiliations":[],"preferred":false,"id":481554,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Camp, Richard J.","contributorId":27392,"corporation":false,"usgs":true,"family":"Camp","given":"Richard J.","affiliations":[],"preferred":false,"id":481553,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70047260,"text":"ofr20131129 - 2013 - Analytical approaches used in stream benthic macroinvertebrate biomonitoring programs of State agencies in the United States","interactions":[],"lastModifiedDate":"2013-07-27T11:15:32","indexId":"ofr20131129","displayToPublicDate":"2013-07-27T11:08:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2013-1129","title":"Analytical approaches used in stream benthic macroinvertebrate biomonitoring programs of State agencies in the United States","docAbstract":"Biomonitoring programs based on benthic macroinvertebrates are well-established worldwide. Their value, however, depends on the appropriateness of the analytical techniques used. All United States State, benthic macroinvertebrate biomonitoring programs were surveyed regarding the purposes of their programs, quality-assurance and quality-control procedures used, habitat and water-chemistry data collected, treatment of macroinvertebrate data prior to analysis, statistical methods used, and data-storage considerations. State regulatory mandates (59 percent of programs), biotic index development (17 percent), and Federal requirements (15 percent) were the most frequently reported purposes of State programs, with the specific tasks of satisfying the requirements for 305b/303d reports (89 percent), establishment and monitoring of total maximum daily loads, and developing biocriteria being the purposes most often mentioned. Most states establish reference sites (81 percent), but classify them using State-specific methods. The most often used technique for determining the appropriateness of a reference site was Best Professional Judgment (86 percent of these states). Macroinvertebrate samples are almost always collected by using a D-frame net, and duplicate samples are collected from approximately 10 percent of sites for quality assurance and quality control purposes. Most programs have macroinvertebrate samples processed by contractors (53 percent) and have identifications confirmed by a second taxonomist (85 percent). All States collect habitat data, with most using the Rapid Bioassessment Protocol visual-assessment approach, which requires ~1 h/site. Dissolved oxygen, pH, and conductivity are measured in more than 90 percent of programs. Wide variation exists in which taxa are excluded from analyses and the level of taxonomic resolution used. Species traits, such as functional feeding groups, are commonly used (96 percent), as are tolerance values for organic pollution (87 percent). Less often used are tolerance values for metals (28 percent). Benthic data are infrequently modified (34 percent) prior to analysis. Fixed-count subsampling is used widely (83 percent), with the number of organisms sorted ranging from 100 to 600 specimens. Most programs include a step during sample processing to acquire rare taxa (79 percent). Programs calculate from 2 to more than100 different metrics (mean 20), and most formulate a multimetric index (87 percent). Eleven of the 112 metrics reported represent 50 percent of all metrics considered to be useful, and most of these are based on richness or percent composition. Biotic indices and tolerance metrics are most oftenused in the eastern U.S., and functional and habitat-type metrics are most often used in the western U.S. Sixty-nine percent of programs analyze their data in-house, typically performing correlations and regressions, and few use any form of data transformation (34 percent). Fifty-one percent of the programs use multivariate analyses, typically non-metric multi-dimensional scaling. All programs have electronic data storage. Most programs use the Integrated Taxonomic Information System (75 percent) for nomenclature and to update historical data (78 percent). State procedures represent a diversity of biomonitoring approaches which likely compromises comparability among programs. A national-state consensus is needed for: (1) developing methods for the identification of reference conditions and reference sites, (2) standardization in determining and reporting species richness, (3) testing and documenting both the theoretical and mechanistic basis of often-used metrics, (4) development of properly replicated point-source study designs, and (5) curation of benthic macroinvertebrate data, including reference and voucher collections, for successful evaluation of future environmental changes.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20131129","usgsCitation":"Carter, J.L., and Resh, V.H., 2013, Analytical approaches used in stream benthic macroinvertebrate biomonitoring programs of State agencies in the United States: U.S. Geological Survey Open-File Report 2013-1129, vi, 50 p., https://doi.org/10.3133/ofr20131129.","productDescription":"vi, 50 p.","numberOfPages":"56","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[{"id":434,"text":"National Research Program","active":false,"usgs":true}],"links":[{"id":275483,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20131129.png"},{"id":275481,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2013/1129/"},{"id":275482,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2013/1129/pdf/ofr20131129.pdf"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f4ddd9e4b0838938b2802f","contributors":{"authors":[{"text":"Carter, James L. 0000-0002-0104-9776 jlcarter@usgs.gov","orcid":"https://orcid.org/0000-0002-0104-9776","contributorId":3278,"corporation":false,"usgs":true,"family":"Carter","given":"James","email":"jlcarter@usgs.gov","middleInitial":"L.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":481550,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Resh, Vincent H.","contributorId":12169,"corporation":false,"usgs":true,"family":"Resh","given":"Vincent","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":481551,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70046824,"text":"70046824 - 2013 - TerraSAR-X interferometry reveals small-scale deformation associated with the summit eruption of Kilauea Volcano, Hawai‘i","interactions":[],"lastModifiedDate":"2018-10-30T08:58:34","indexId":"70046824","displayToPublicDate":"2013-07-26T15:17:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"TerraSAR-X interferometry reveals small-scale deformation associated with the summit eruption of Kilauea Volcano, Hawai‘i","docAbstract":"On 19 March 2008, a small explosive eruption at the summit of Kīlauea Volcano, Hawai‘i, heralded the formation of a new vent along the east wall of Halema‘uma‘u Crater. In the ensuing years, the vent widened due to collapses of the unstable rim and conduit wall; some collapses impacted an actively circulating lava pond and resulted in small explosive events. We used synthetic aperture radar data collected by the TerraSAR-X satellite, a joint venture between the German Aerospace Center (DLR) and EADS Astrium, to identify and analyze small-scale surface deformation around the new vent during 2008-2012. Lidar data were used to construct a digital elevation model to correct for topographic phase, allowing us to generate differential interferograms with a spatial resolution of about 3 m in Kīlauea's summit area. These interferograms reveal subsidence within about 100 m of the rim of the vent. Small baseline subset time series analysis suggests that the subsidence rate is not constant and, over time, may provide an indication of vent stability and potential for rim and wall collapse -- information with obvious hazard implications. The deformation is not currently detectable by other space- or ground-based techniques.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1002/grl.50286","usgsCitation":"Richter, N., Poland, M., and Lundgren, P.R., 2013, TerraSAR-X interferometry reveals small-scale deformation associated with the summit eruption of Kilauea Volcano, Hawai‘i: Geophysical Research Letters, v. 40, no. 7, p. 1279-1283, https://doi.org/10.1002/grl.50286.","productDescription":"5 p.","startPage":"1279","endPage":"1283","numberOfPages":"5","ipdsId":"IP-042377","costCenters":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":275474,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":275473,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/grl.50286"}],"country":"United States","state":"Hawai'i","otherGeospatial":"Kilauea Volcano","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -155.5,19.166667 ], [ -155.5,19.5 ], [ -154.833333,19.5 ], [ -154.833333,19.166667 ], [ -155.5,19.166667 ] ] ] } } ] }","volume":"40","issue":"7","noUsgsAuthors":false,"publicationDate":"2013-04-12","publicationStatus":"PW","scienceBaseUri":"51f38c5fe4b0a32220222f47","contributors":{"authors":[{"text":"Richter, Nichole","contributorId":40495,"corporation":false,"usgs":true,"family":"Richter","given":"Nichole","email":"","affiliations":[],"preferred":false,"id":480370,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Poland, Michael P. 0000-0001-5240-6123 mpoland@usgs.gov","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":635,"corporation":false,"usgs":true,"family":"Poland","given":"Michael P.","email":"mpoland@usgs.gov","affiliations":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"preferred":false,"id":480369,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lundgren, Paul R.","contributorId":68199,"corporation":false,"usgs":true,"family":"Lundgren","given":"Paul","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":480371,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70047250,"text":"70047250 - 2013 - Strongly gliding harmonic tremor during the 2009 eruption of  Redoubt Volcano","interactions":[],"lastModifiedDate":"2013-07-26T15:04:12","indexId":"70047250","displayToPublicDate":"2013-07-26T14:57:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Strongly gliding harmonic tremor during the 2009 eruption of  Redoubt Volcano","docAbstract":"During the 2009 eruption of Redoubt Volcano, Alaska, gliding harmonic tremor occurred prominently before six nearly consecutive explosions during the second half of the eruptive sequence. The fundamental frequency repeatedly glided upward from &lt; 1 Hz to as high as 30 Hz in less than 10 min, followed by a relative seismic quiescence of 10 to 60 s immediately prior to explosion. High frequency (5 to 20 Hz) gliding returned during the extrusive phase, and lasted for 20 min to 3 h at a time. Although harmonic tremor is not uncommon at volcanoes, tremor at such high frequencies is a rare observation. These frequencies approach or exceed the plausible upper limits of many models that have been suggested for volcanic tremor. We also analyzed the behavior of a swarm of repeating earthquakes that immediately preceded the first instance of pre-explosion gliding harmonic tremor. We find that these earthquakes share several traits with upward gliding harmonic tremor, and favor the explanation that the gliding harmonic tremor at Redoubt Volcano is created by the superposition of increasingly frequent and regular, repeating stick–slip earthquakes through the Dirac comb effect.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.jvolgeores.2012.01.001","usgsCitation":"Hotovec, A.J., Prejean, S.G., Vidale, J.E., and Gomberg, J.S., 2013, Strongly gliding harmonic tremor during the 2009 eruption of  Redoubt Volcano: Journal of Volcanology and Geothermal Research, v. 259, p. 89-99, https://doi.org/10.1016/j.jvolgeores.2012.01.001.","productDescription":"11 p.","startPage":"89","endPage":"99","numberOfPages":"11","ipdsId":"IP-038591","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":275471,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":275470,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jvolgeores.2012.01.001"}],"country":"United States","state":"Alaska","otherGeospatial":"Redoubt Volcano","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -153.0,60.416667 ], [ -153.0,60.616667 ], [ -152.333333,60.616667 ], [ -152.333333,60.416667 ], [ -153.0,60.416667 ] ] ] } } ] }","volume":"259","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f38c5ee4b0a32220222f3b","contributors":{"authors":[{"text":"Hotovec, Alicia J.","contributorId":88039,"corporation":false,"usgs":true,"family":"Hotovec","given":"Alicia","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":481519,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Prejean, Stephanie G. sprejean@usgs.gov","contributorId":2602,"corporation":false,"usgs":true,"family":"Prejean","given":"Stephanie","email":"sprejean@usgs.gov","middleInitial":"G.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":481517,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vidale, John E.","contributorId":48850,"corporation":false,"usgs":true,"family":"Vidale","given":"John","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":481518,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gomberg, Joan S. 0000-0002-0134-2606 gomberg@usgs.gov","orcid":"https://orcid.org/0000-0002-0134-2606","contributorId":1269,"corporation":false,"usgs":true,"family":"Gomberg","given":"Joan","email":"gomberg@usgs.gov","middleInitial":"S.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":481516,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70046957,"text":"70046957 - 2013 - Strategies for fitting nonlinear ecological models in R, AD Model Builder, and BUGS","interactions":[],"lastModifiedDate":"2013-07-26T14:32:35","indexId":"70046957","displayToPublicDate":"2013-07-26T14:24:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2717,"text":"Methods in Ecology and Evolution","active":true,"publicationSubtype":{"id":10}},"title":"Strategies for fitting nonlinear ecological models in R, AD Model Builder, and BUGS","docAbstract":"1.  Ecologists often use nonlinear fitting techniques to estimate the parameters of complex ecological models, with attendant frustration. This paper compares three open-source model fitting tools and discusses general strategies for defining and fitting models.  \n<br>\n2. R is convenient and (relatively) easy to learn, AD Model Builder is fast and robust but comes with a steep learning curve, while BUGS provides the greatest flexibility at the price of speed.  \n<br>\n3.  Our model-fitting suggestions range from general cultural advice (where possible, use the tools and models that are most common in your subfield) to specific suggestions about how to change the mathematical description of models to make them more amenable to parameter estimation.  \n<br>\n4.  A companion web site (https://groups.nceas.ucsb.edu/nonlinear-modeling/projects) presents detailed examples of application of the three tools to a variety of typical ecological estimation problems; each example links both to a detailed project report and to full source code and data.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Methods in Ecology and Evolution","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1111/2041-210X.12044","usgsCitation":"Bolker, B.M., Gardner, B., Maunder, M., Berg, C.W., Brooks, M., Comita, L., Crone, E., Cubaynes, S., Davies, T., de Valpine, P., Ford, J., Gimenez, O., Kéry, M., Kim, E.J., Lennert-Cody, C., Magunsson, A., Martell, S., Nash, J., Nielson, A., Regentz, J., Skaug, H., and Zipkin, E., 2013, Strategies for fitting nonlinear ecological models in R, AD Model Builder, and BUGS: Methods in Ecology and Evolution, v. 4, no. 6, p. 501-512, https://doi.org/10.1111/2041-210X.12044.","productDescription":"12 p.","startPage":"501","endPage":"512","numberOfPages":"12","ipdsId":"IP-043950","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":473645,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/2041-210x.12044","text":"Publisher Index Page"},{"id":275467,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":274828,"type":{"id":15,"text":"Index Page"},"url":"https://onlinelibrary.wiley.com/doi/10.1111/2041-210X.12044/abstract"},{"id":275466,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/2041-210X.12044"}],"volume":"4","issue":"6","noUsgsAuthors":false,"publicationDate":"2013-04-22","publicationStatus":"PW","scienceBaseUri":"51f38c5de4b0a32220222f37","contributors":{"authors":[{"text":"Bolker, Benjamin M.","contributorId":34021,"corporation":false,"usgs":false,"family":"Bolker","given":"Benjamin","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":480681,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gardner, Beth","contributorId":91612,"corporation":false,"usgs":false,"family":"Gardner","given":"Beth","affiliations":[{"id":13553,"text":"University of Washington-Seattle","active":true,"usgs":false}],"preferred":false,"id":480692,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Maunder, Mark","contributorId":84250,"corporation":false,"usgs":true,"family":"Maunder","given":"Mark","email":"","affiliations":[],"preferred":false,"id":480691,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Berg, Casper W.","contributorId":30893,"corporation":false,"usgs":true,"family":"Berg","given":"Casper","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":480678,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brooks, Mollie","contributorId":20633,"corporation":false,"usgs":true,"family":"Brooks","given":"Mollie","email":"","affiliations":[],"preferred":false,"id":480676,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Comita, Liza","contributorId":69868,"corporation":false,"usgs":true,"family":"Comita","given":"Liza","email":"","affiliations":[],"preferred":false,"id":480688,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Crone, Elizabeth","contributorId":62906,"corporation":false,"usgs":true,"family":"Crone","given":"Elizabeth","affiliations":[],"preferred":false,"id":480687,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Cubaynes, Sarah","contributorId":31660,"corporation":false,"usgs":true,"family":"Cubaynes","given":"Sarah","email":"","affiliations":[],"preferred":false,"id":480679,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Davies, Trevor","contributorId":61323,"corporation":false,"usgs":true,"family":"Davies","given":"Trevor","email":"","affiliations":[],"preferred":false,"id":480686,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"de Valpine, Perry","contributorId":58147,"corporation":false,"usgs":true,"family":"de Valpine","given":"Perry","affiliations":[],"preferred":false,"id":480685,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Ford, Jessica","contributorId":105197,"corporation":false,"usgs":true,"family":"Ford","given":"Jessica","email":"","affiliations":[],"preferred":false,"id":480693,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Gimenez, Olivier","contributorId":54093,"corporation":false,"usgs":true,"family":"Gimenez","given":"Olivier","email":"","affiliations":[],"preferred":false,"id":480683,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Kéry, Marc","contributorId":80990,"corporation":false,"usgs":true,"family":"Kéry","given":"Marc","affiliations":[],"preferred":false,"id":480689,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Kim, Eun Jung","contributorId":108381,"corporation":false,"usgs":true,"family":"Kim","given":"Eun","email":"","middleInitial":"Jung","affiliations":[],"preferred":false,"id":480695,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Lennert-Cody, Cleridy","contributorId":83423,"corporation":false,"usgs":true,"family":"Lennert-Cody","given":"Cleridy","email":"","affiliations":[],"preferred":false,"id":480690,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Magunsson, Arni","contributorId":56954,"corporation":false,"usgs":true,"family":"Magunsson","given":"Arni","email":"","affiliations":[],"preferred":false,"id":480684,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Martell, Steve","contributorId":33606,"corporation":false,"usgs":true,"family":"Martell","given":"Steve","email":"","affiliations":[],"preferred":false,"id":480680,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Nash, John","contributorId":17122,"corporation":false,"usgs":true,"family":"Nash","given":"John","email":"","affiliations":[],"preferred":false,"id":480675,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Nielson, Anders","contributorId":34410,"corporation":false,"usgs":true,"family":"Nielson","given":"Anders","email":"","affiliations":[],"preferred":false,"id":480682,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Regentz, Jim","contributorId":107591,"corporation":false,"usgs":true,"family":"Regentz","given":"Jim","email":"","affiliations":[],"preferred":false,"id":480694,"contributorType":{"id":1,"text":"Authors"},"rank":20},{"text":"Skaug, Hans","contributorId":22228,"corporation":false,"usgs":true,"family":"Skaug","given":"Hans","email":"","affiliations":[],"preferred":false,"id":480677,"contributorType":{"id":1,"text":"Authors"},"rank":21},{"text":"Zipkin, Elise ezipkin@usgs.gov","contributorId":470,"corporation":false,"usgs":true,"family":"Zipkin","given":"Elise","email":"ezipkin@usgs.gov","affiliations":[],"preferred":true,"id":480674,"contributorType":{"id":1,"text":"Authors"},"rank":22}]}}
,{"id":70047248,"text":"70047248 - 2013 - Seismic observations of Redoubt Volcano, Alaska - 1989-2010 and a conceptual model of the Redoubt magmatic system","interactions":[],"lastModifiedDate":"2013-07-26T13:48:49","indexId":"70047248","displayToPublicDate":"2013-07-26T13:32:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Seismic observations of Redoubt Volcano, Alaska - 1989-2010 and a conceptual model of the Redoubt magmatic system","docAbstract":"Seismic activity at Redoubt Volcano, Alaska, has been closely monitored since 1989 by a network of five to ten seismometers within 22 km of the volcano's summit. Major eruptions occurred in 1989-1990 and 2009 and were characterized by large volcanic explosions, episodes of lava dome growth and failure, pyroclastic flows, and lahars.\n\nSeismic features of the 1989-1990 eruption were 1) weak precursory tremor and a short, 23-hour-long, intense swarm of repetitive shallow long-period (LP) events centered 1.4 km below the crater floor, 2) shallow volcano-tectonic (VT) and hybrid earthquakes that separated early episodes of dome growth, 3) 13 additional swarms of LP events at shallow depths precursory to many of the 25 explosions that occurred over the more than 128 day duration of eruptive activity, and 4) a persistent cluster of VT earthquakes at 6 to 9 km depth.\n\nIn contrast the 2009 eruption was preceded by a pronounced increase in deep-LP (DLP) events at lower crustal depths (25 to 38 km) that began in mid-December 2008, two months of discontinuous shallow volcanic tremor that started on January 23, 2009, a strong phreatic explosion on March 15, and a 58-hour-long swarm of repetitive shallow LP events. The 2009 eruption consisted of at least 23 major explosions between March 23 and April 5, again accompanied by shallow VT earthquakes, several episodes of shallow repetitive LP events and dome growth continuing until mid July. Increased VT earthquakes at 4 to 9 km depth began slowly in early April, possibly defining a mid-crustal magma source zone.\n\nMagmatic processes associated with the 2009 eruption seismically activated the same portions of the Redoubt magmatic system as the 1989-1990 eruption, although the time scales and intensity vary considerably among the two eruptions. The occurrence of precursory DLP events suggests that the 2009 eruption may have involved the rise of magma from lower crustal depths. Based on the evolution of seismicity during the 1989-1990 and 2009 eruptions the Redoubt magmatic system is envisioned to consist of a shallow system of cracks extending 1 to 2 km below the crater floor, a magma storage or source region at roughly 3 to 9 km depth, and a diffuse magma source region at 25 to 38 km depth. Close tracking of seismic activity allowed the Alaska Volcano Observatory to successfully issue warnings prior to many of the hazardous explosive events that occurred in 2009.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.jvolgeores.2012.09.014","usgsCitation":"Power, J.A., Stihler, S.D., Chouet, B.A., Haney, M., and Ketner, D., 2013, Seismic observations of Redoubt Volcano, Alaska - 1989-2010 and a conceptual model of the Redoubt magmatic system: Journal of Volcanology and Geothermal Research, v. 259, p. 31-44, https://doi.org/10.1016/j.jvolgeores.2012.09.014.","productDescription":"14 p.","startPage":"31","endPage":"44","numberOfPages":"14","temporalStart":"1989-01-01","temporalEnd":"2010-07-01","ipdsId":"IP-040457","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":275457,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jvolgeores.2012.09.014"},{"id":275458,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Redoubt Volcano","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -153.0,60.416667 ], [ -153.0,60.583333 ], [ -153.5,60.583333 ], [ -153.5,60.416667 ], [ -153.0,60.416667 ] ] ] } } ] }","volume":"259","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f38c5ce4b0a32220222f27","contributors":{"authors":[{"text":"Power, John A. 0000-0002-7233-4398 jpower@usgs.gov","orcid":"https://orcid.org/0000-0002-7233-4398","contributorId":2768,"corporation":false,"usgs":true,"family":"Power","given":"John","email":"jpower@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":481496,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stihler, Scott D.","contributorId":31373,"corporation":false,"usgs":true,"family":"Stihler","given":"Scott","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":481499,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chouet, Bernard A. 0000-0001-5527-0532 chouet@usgs.gov","orcid":"https://orcid.org/0000-0001-5527-0532","contributorId":3304,"corporation":false,"usgs":true,"family":"Chouet","given":"Bernard","email":"chouet@usgs.gov","middleInitial":"A.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":481497,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Haney, Matthew M.","contributorId":107584,"corporation":false,"usgs":true,"family":"Haney","given":"Matthew M.","affiliations":[],"preferred":false,"id":481500,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ketner, D.M.","contributorId":18655,"corporation":false,"usgs":true,"family":"Ketner","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":481498,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70046908,"text":"70046908 - 2013 - Spatial dynamics of ecosystem service flows: a comprehensive approach to quantifying actual services","interactions":[],"lastModifiedDate":"2013-07-26T13:01:41","indexId":"70046908","displayToPublicDate":"2013-07-26T12:39:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1477,"text":"Ecosystem Services","active":true,"publicationSubtype":{"id":10}},"title":"Spatial dynamics of ecosystem service flows: a comprehensive approach to quantifying actual services","docAbstract":"Recent ecosystem services research has highlighted the importance of spatial connectivity between ecosystems and their beneficiaries. Despite this need, a systematic approach to ecosystem service flow quantification has not yet emerged. In this article, we present such an approach, which we formalize as a class of agent-based models termed “Service Path Attribution Networks” (SPANs). These models, developed as part of the Artificial Intelligence for Ecosystem Services (ARIES) project, expand on ecosystem services classification terminology introduced by other authors. Conceptual elements needed to support flow modeling include a service's rivalness, its flow routing type (e.g., through hydrologic or transportation networks, lines of sight, or other approaches), and whether the benefit is supplied by an ecosystem's provision of a beneficial flow to people or by absorption of a detrimental flow before it reaches them. We describe our implementation of the SPAN framework for five ecosystem services and discuss how to generalize the approach to additional services. SPAN model outputs include maps of ecosystem service provision, use, depletion, and flows under theoretical, possible, actual, inaccessible, and blocked conditions. We highlight how these different ecosystem service flow maps could be used to support various types of decision making for conservation and resource management planning.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecosystem Services","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.ecoser.2012.07.012","usgsCitation":"Bagstad, K.J., Johnson, G.W., Voigt, B., and Villa, F., 2013, Spatial dynamics of ecosystem service flows: a comprehensive approach to quantifying actual services: Ecosystem Services, v. 4, p. 117-125, https://doi.org/10.1016/j.ecoser.2012.07.012.","productDescription":"9 p.","startPage":"117","endPage":"125","numberOfPages":"9","ipdsId":"IP-037480","costCenters":[{"id":547,"text":"Rocky Mountain Geographic Science Center","active":true,"usgs":true}],"links":[{"id":473647,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.ecoser.2012.07.012","text":"Publisher Index Page"},{"id":275448,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.ecoser.2012.07.012"},{"id":275450,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":274717,"type":{"id":15,"text":"Index Page"},"url":"https://www.sciencedirect.com/science/article/pii/S2212041612000174"}],"volume":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f38c5de4b0a32220222f2f","contributors":{"authors":[{"text":"Bagstad, Kenneth J. 0000-0001-8857-5615 kjbagstad@usgs.gov","orcid":"https://orcid.org/0000-0001-8857-5615","contributorId":3680,"corporation":false,"usgs":true,"family":"Bagstad","given":"Kenneth","email":"kjbagstad@usgs.gov","middleInitial":"J.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":480601,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, Gary W.","contributorId":90618,"corporation":false,"usgs":true,"family":"Johnson","given":"Gary","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":480603,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Voigt, Brian","contributorId":102962,"corporation":false,"usgs":true,"family":"Voigt","given":"Brian","affiliations":[],"preferred":false,"id":480604,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Villa, Ferdinando","contributorId":84249,"corporation":false,"usgs":true,"family":"Villa","given":"Ferdinando","affiliations":[],"preferred":false,"id":480602,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70047246,"text":"ofr20131152 - 2013 - Serious games experiment toward agent-based simulation","interactions":[],"lastModifiedDate":"2013-07-26T11:57:58","indexId":"ofr20131152","displayToPublicDate":"2013-07-26T11:41:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2013-1152","title":"Serious games experiment toward agent-based simulation","docAbstract":"We evaluate the potential for serious games to be used as a scientifically based decision-support product that supports the United States Geological Survey’s (USGS) mission--to provide integrated, unbiased scientific information that can make a substantial contribution to societal well-being for a wide variety of complex environmental challenges. Serious or pedagogical games are an engaging way to educate decisionmakers and stakeholders about environmental challenges that are usefully informed by natural and social scientific information and knowledge and can be designed to promote interactive learning and exploration in the face of large uncertainties, divergent values, and complex situations. We developed two serious games that use challenging environmental-planning issues to demonstrate and investigate the potential contributions of serious games to inform regional-planning decisions. Delta Skelta is a game emulating long-term integrated environmental planning in the Sacramento-San Joaquin Delta, California, that incorporates natural hazards (flooding and earthquakes) and consequences for California water supplies amidst conflicting water interests. Age of Ecology is a game that simulates interactions between economic and ecologic processes, as well as natural hazards while implementing agent-based modeling. The content of these games spans the USGS science mission areas related to water, ecosystems, natural hazards, land use, and climate change. We describe the games, reflect on design and informational aspects, and comment on their potential usefulness. During the process of developing these games, we identified various design trade-offs involving factual information, strategic thinking, game-winning criteria, elements of fun, number and type of players, time horizon, and uncertainty. We evaluate the two games in terms of accomplishments and limitations. Overall, we demonstrated the potential for these games to usefully represent scientific information within challenging environmental and ecosystem-management contexts and to provide an interactive way of learning about the complexity of interactions between people and natural systems. Further progress on the use of pedagogical games to fulfill the USGS mission will require collaboration among scientists, game developers, educators, and stakeholders. We conclude that as the USGS positions itself to communicate and convey the results of multiple science strategies, including natural-resource security and sustainability, pedagogical game development and agent-based modeling offer a means to (1) establish interdisciplinary and collaborative teams with a focused integrated outcome; (2) contribute to the modeling of interaction, feedback, and adaptation of ecosystems; and (3) enable social learning through a broadly appealing and increasingly sophisticated medium.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20131152","usgsCitation":"Wein, A., and Labiosa, W., 2013, Serious games experiment toward agent-based simulation: U.S. Geological Survey Open-File Report 2013-1152, iv, 30 p., https://doi.org/10.3133/ofr20131152.","productDescription":"iv, 30 p.","numberOfPages":"30","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"links":[{"id":275445,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20131152.bmp"},{"id":275443,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2013/1152/pdf/ofr20131152.pdf"},{"id":275444,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2013/1152/"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f38c5ce4b0a32220222f2b","contributors":{"authors":[{"text":"Wein, Anne 0000-0002-5516-3697 awein@usgs.gov","orcid":"https://orcid.org/0000-0002-5516-3697","contributorId":589,"corporation":false,"usgs":true,"family":"Wein","given":"Anne","email":"awein@usgs.gov","affiliations":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"preferred":true,"id":481490,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Labiosa, William","contributorId":26421,"corporation":false,"usgs":true,"family":"Labiosa","given":"William","affiliations":[],"preferred":false,"id":481491,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70047216,"text":"70047216 - 2013 - A comparison of models for estimating potential evapotranspiration for Florida land cover types","interactions":[],"lastModifiedDate":"2013-07-26T08:09:28","indexId":"70047216","displayToPublicDate":"2013-07-25T16:01:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"A comparison of models for estimating potential evapotranspiration for Florida land cover types","docAbstract":"We analyzed observed daily evapotranspiration (DET) at 18 sites having measured DET and ancillary climate data and then used these data to compare the performance of three common methods for estimating potential evapotranspiration (PET): the Turc method (Tc), the Priestley-Taylor method (PT) and the Penman-Monteith method (PM). The sites were distributed throughout the State of Florida and represent a variety of land cover types: open water (3), marshland (4), grassland/pasture (4), citrus (2) and forest (5). Not surprisingly, the highest DET values occurred at the open water sites, ranging from an average of 3.3 mm d<sup>-1</sup> in the winter to 5.3 mm d<sup>-1</sup> in the spring. DET at the marsh sites was also high, ranging from 2.7 mm d<sup>-1</sup> in winter to 4.4 mm d<sup>-1</sup> in summer. The lowest DET occurred in the winter and fall seasons at the grass sites (1.3 mm d<sup>-1</sup> and 2.0 mm d<sup>-1</sup>, respectively) and at the forested sites (1.8 mm d<sup>-1 and 2.3 mm d<sup>-1</sup>, respectively). The performance of the three methods when applied to conditions close to PET (Bowen ratio &le; 1) was used to judge relative merit. Under such PET conditions, annually aggregated Tc and PT methods perform comparably and outperform the PM method, possibly due to the sensitivity of the PM method to the limited transferability of previously determined model parameters. At a daily scale, the PT performance appears to be superior to the other two methods for estimating PET for a variety of land covers in Florida.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.jhydrol.2009.04.029","usgsCitation":"Douglas, E.M., Jacobs, J.M., Sumner, D.M., and Ray, R.L., 2013, A comparison of models for estimating potential evapotranspiration for Florida land cover types: Journal of Hydrology, v. 373, no. 3-4, p. 366-376, https://doi.org/10.1016/j.jhydrol.2009.04.029.","productDescription":"11 p.","startPage":"366","endPage":"376","numberOfPages":"11","ipdsId":"IP-004364","costCenters":[{"id":285,"text":"Florida Water Science Center","active":false,"usgs":true}],"links":[{"id":275415,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":275413,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2009.04.029"}],"country":"United States","state":"Florida","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -87.6349,24.5211 ], [ -87.6349,31.001 ], [ -80.0311,31.001 ], [ -80.0311,24.5211 ], [ -87.6349,24.5211 ] ] ] } } ] }","volume":"373","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51f253e2e4b0279fe2e1bfbd","contributors":{"authors":[{"text":"Douglas, Ellen M.","contributorId":57344,"corporation":false,"usgs":true,"family":"Douglas","given":"Ellen","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":481421,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jacobs, Jennifer M.","contributorId":86245,"corporation":false,"usgs":true,"family":"Jacobs","given":"Jennifer","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":481422,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sumner, David M. 0000-0002-2144-9304 dmsumner@usgs.gov","orcid":"https://orcid.org/0000-0002-2144-9304","contributorId":1362,"corporation":false,"usgs":true,"family":"Sumner","given":"David","email":"dmsumner@usgs.gov","middleInitial":"M.","affiliations":[{"id":270,"text":"FLWSC-Tampa","active":true,"usgs":true},{"id":156,"text":"Caribbean Water Science Center","active":true,"usgs":true}],"preferred":true,"id":481419,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ray, Ram L.","contributorId":21850,"corporation":false,"usgs":true,"family":"Ray","given":"Ram","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":481420,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70118122,"text":"70118122 - 2013 - Roman, Visigothic and Islamic evidence of earthquakes recorded in the archaeological site of “El Tolmo de Minateda” (Prebetic Zone, southeast of Spain)","interactions":[],"lastModifiedDate":"2014-07-25T15:57:08","indexId":"70118122","displayToPublicDate":"2013-07-25T15:50:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1351,"text":"Cuaternario y Geomorfologia","active":true,"publicationSubtype":{"id":10}},"title":"Roman, Visigothic and Islamic evidence of earthquakes recorded in the archaeological site of “El Tolmo de Minateda” (Prebetic Zone, southeast of Spain)","docAbstract":"The archaeological site of “El Tolmo de Minateda” is located within the Albacete province (SE of Spain) and \nshows a continuous time record of ancient civilizations from 3500 yr BP onwards. However, three temporal \ngaps were identified in this archaeological record, all of them in relationship with a sudden and unclear \nabandonment of the city (Centuries 1st, 7th and 9-10th). The Archaeological Earthquake Effects (EAEs) supports \nthe possibility that moderate to strong earthquakes were the cause of such abandonments: oriented columns \nfallen, collapsed walls and arches, abandonment of irrigation systems and fresh-water supplies, crashed \npottery, etc. Despite of the scarce of instrumental seismicity and a few historical chronicles, paleoseismic \nstudies performed in the neighbouring zone (Tobarra) suggest the presence of closer seismic sources as faults \n(Pozohondo Fault) affecting Quaternary alluvial, lacustrine deposits and colluviums. In this work, we propose \nthe possibility that three moderate earthquakes devastated the ancient Roman city of Ilunum (Century 1st AD), \nthe Visigothic city of Elo (Century 7th AD) and the Islamic city of Madinat Iyih (Century 9th-10thAD), all of them \nthe same place: “El Tolmo de Minateda”.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Cuaternario y Geomorfologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Asociación Española para el Estudio del Cuaternario","usgsCitation":"Rodriguez-Pascua, M., Abad Casal, L., Perez-Lopez, R., Gamo Parra, B., Silva, P., Garduño-Monroy, V., Giner-Robles, J.L., Perucha, M., Israde-Alcántara, I., Bischoff, J., and Calvo, J.P., 2013, Roman, Visigothic and Islamic evidence of earthquakes recorded in the archaeological site of “El Tolmo de Minateda” (Prebetic Zone, southeast of Spain): Cuaternario y Geomorfologia, v. 27, no. 3-4, p. 83-90.","productDescription":"8 p.","startPage":"83","endPage":"90","costCenters":[],"links":[{"id":291050,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":291045,"type":{"id":15,"text":"Index Page"},"url":"https://www.researchgate.net/publication/259561555_Roman_Visigothic_and_Islamic_evidence_of_earthquakes_recorded_in_the_archaeological_site_of_El_Tolmo_de_Minateda_(Prebetic_Zone_southeast_of_Spain)"}],"otherGeospatial":"Albacete Province","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -1.88628,38.971483 ], [ -1.88628,39.012916 ], [ -1.834899,39.012916 ], [ -1.834899,38.971483 ], [ -1.88628,38.971483 ] ] ] } } ] }","volume":"27","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57f7f29ae4b0bc0bec0a0490","contributors":{"authors":[{"text":"Rodriguez-Pascua, M.A.","contributorId":36853,"corporation":false,"usgs":true,"family":"Rodriguez-Pascua","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":496388,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Abad Casal, L.","contributorId":102809,"corporation":false,"usgs":true,"family":"Abad Casal","given":"L.","email":"","affiliations":[],"preferred":false,"id":496392,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Perez-Lopez, R.","contributorId":40039,"corporation":false,"usgs":true,"family":"Perez-Lopez","given":"R.","email":"","affiliations":[],"preferred":false,"id":496389,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gamo Parra, B.","contributorId":9183,"corporation":false,"usgs":true,"family":"Gamo Parra","given":"B.","email":"","affiliations":[],"preferred":false,"id":496382,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Silva, P.G.","contributorId":17158,"corporation":false,"usgs":true,"family":"Silva","given":"P.G.","email":"","affiliations":[],"preferred":false,"id":496383,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Garduño-Monroy, V.H.","contributorId":65015,"corporation":false,"usgs":true,"family":"Garduño-Monroy","given":"V.H.","affiliations":[],"preferred":false,"id":496391,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Giner-Robles, J. L.","contributorId":22602,"corporation":false,"usgs":true,"family":"Giner-Robles","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":496384,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Perucha, M.A.","contributorId":33636,"corporation":false,"usgs":true,"family":"Perucha","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":496387,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Israde-Alcántara, I.","contributorId":60422,"corporation":false,"usgs":true,"family":"Israde-Alcántara","given":"I.","affiliations":[],"preferred":false,"id":496390,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Bischoff, J.","contributorId":32730,"corporation":false,"usgs":true,"family":"Bischoff","given":"J.","affiliations":[],"preferred":false,"id":496386,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Calvo, J. P.","contributorId":24136,"corporation":false,"usgs":true,"family":"Calvo","given":"J.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":496385,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}}
]}