{"pageNumber":"1844","pageRowStart":"46075","pageSize":"25","recordCount":184617,"records":[{"id":70004877,"text":"70004877 - 2011 - Recreation impacts to cliff resources in the Potomac Gorge: Final report, June 2011","interactions":[],"lastModifiedDate":"2016-12-06T14:00:25","indexId":"70004877","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"title":"Recreation impacts to cliff resources in the Potomac Gorge: Final report, June 2011","docAbstract":"Managers of the National Park Service (NPS) are directed by law to accommodate appropriate types and amounts of visitation while ensuring that: any adverse impacts are the minimum necessary, unavoidable, cannot be further mitigated, and do not constitute impairment or derogation of park resources and values. (NPS 2006). The increasing popularity of the national park system presents substantial management challenges. High visitatation may cause unacceptable impacts to fragile natural and cultural resources, and may also cause crowding and other social impacts, which can also degrade the quality of visitor experiences. Responding to these concerns, NPS managers at Chesapeake & Ohio Canal National Historical Park (CHOH) and George Washington Memorial Parkway (GWMP) sponsored this research within the upper Potomac Gorge portions of these parks to investigate visitation-related impacts to the park?s cliff resources. The cliffs and rocky areas within the Great Falls and Mather Gorge areas provide important habitats for numerous sensitive rare plants and plant communities. A recent General Management Planning process for Great Falls Park (GFP), a portion of GWMP, highlighted the potential impacts of cliff-associated recreational activities, including hiking, climbing, and fishing, on sensitive cliff resources. The planning process identified the need for development of a Climbing Management Plan and a Trail Plan to more specifically address site and visitor management actions needed to protect rare and sensitive natural and cultural resources. Good science to assess cliff-associated rare plants and communities and to determine the existing and potential effects of cliff-related recreational activities is required for these new planning efforts. This research is designed to specifically address these informational needs and to assist park managers on both sides of the river with current and future cliff and recreation management decisions.","language":"English","publisher":"Virginia Tech, College of Natural Resources & Environment, Department of Forest Resources & Environmental Conservation","publisherLocation":"Blacksburg, VA","usgsCitation":"Marion, J.L., Carr, C., and Davis, C., 2011, Recreation impacts to cliff resources in the Potomac Gorge: Final report, June 2011, viii, 127 p.","productDescription":"viii, 127 p.","numberOfPages":"135","ipdsId":"IP-028793","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":331575,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":24388,"type":{"id":11,"text":"Document"},"url":"https://www.pwrc.usgs.gov/prodabs/pubpdfs/7481_Marion.pdf"}],"country":"UNITED STATES","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5847dc80e4b06d80b7af6abb","contributors":{"authors":[{"text":"Marion, Jeffrey L.","contributorId":56322,"corporation":false,"usgs":true,"family":"Marion","given":"Jeffrey","email":"","middleInitial":"L.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":654994,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carr, C.","contributorId":177203,"corporation":false,"usgs":false,"family":"Carr","given":"C.","email":"","affiliations":[],"preferred":false,"id":654995,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Davis, C.A.","contributorId":68819,"corporation":false,"usgs":true,"family":"Davis","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":654996,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70034379,"text":"70034379 - 2011 - Variation in local abundance and species richness of stream fishes in relation to dispersal barriers: Implications for management and conservation","interactions":[],"lastModifiedDate":"2012-03-12T17:21:47","indexId":"70034379","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1696,"text":"Freshwater Biology","active":true,"publicationSubtype":{"id":10}},"title":"Variation in local abundance and species richness of stream fishes in relation to dispersal barriers: Implications for management and conservation","docAbstract":"1.Barriers to immigration, all else being equal, should in principle depress local abundance and reduce local species richness. These issues are particularly relevant to stream-dwelling species when improperly designed road crossings act as barriers to migration with potential impacts on the viability of upstream populations. However, because abundance and richness are highly spatially and temporally heterogeneous and the relative importance of immigration on demography is uncertain, population- and community-level effects can be difficult to detect. 2.In this study, we tested the effects of potential barriers to upstream movements on the local abundance and species richness of a diverse assemblage of resident stream fishes in the Monongahela National Forest, West Virginia, U.S.A. Fishes were sampled using simple standard techniques above- and below road crossings that were either likely or unlikely to be barriers to upstream fish movements (based on physical dimensions of the crossing). We predicted that abundance of resident fishes would be lower in the upstream sections of streams with predicted impassable barriers, that the strength of the effect would vary among species and that variable effects on abundance would translate into lower species richness. 3.Supporting these predictions, the statistical model that best accounted for variation in abundance and species richness included a significant interaction between location (upstream or downstream of crossing) and type (passable or impassable crossing). Stream sections located above predicated impassable culverts had fewer than half the number of species and less than half the total fish abundance, while stream sections above and below passable culverts had essentially equivalent richness and abundance. 4.Our results are consistent with the importance of immigration and population connectivity to local abundance and species richness of stream fishes. In turn, these results suggest that when measured at appropriate scales (multiple streams within catchments), with simple protocols amenable to use by management agencies, differences in local abundance and species richness may serve as indicators of the extent to which road crossings are barriers to fish movement and help determine whether road-crossing improvements have restored connectivity to stream fish populations and communities. Published 2011. This article is a US Government work and is in the public domain in the USA.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Freshwater Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-2427.2011.02634.x","issn":"00465070","usgsCitation":"Nislow, K., Hudy, M., Letcher, B., and Smith, E., 2011, Variation in local abundance and species richness of stream fishes in relation to dispersal barriers: Implications for management and conservation: Freshwater Biology, v. 56, no. 10, p. 2135-2144, https://doi.org/10.1111/j.1365-2427.2011.02634.x.","startPage":"2135","endPage":"2144","numberOfPages":"10","costCenters":[],"links":[{"id":216677,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2427.2011.02634.x"},{"id":244562,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"56","issue":"10","noUsgsAuthors":false,"publicationDate":"2011-07-20","publicationStatus":"PW","scienceBaseUri":"505bc15be4b08c986b32a52d","contributors":{"authors":[{"text":"Nislow, K.H.","contributorId":66477,"corporation":false,"usgs":true,"family":"Nislow","given":"K.H.","affiliations":[],"preferred":false,"id":445506,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hudy, M.","contributorId":16952,"corporation":false,"usgs":true,"family":"Hudy","given":"M.","affiliations":[],"preferred":false,"id":445504,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Letcher, B. H. 0000-0003-0191-5678","orcid":"https://orcid.org/0000-0003-0191-5678","contributorId":48132,"corporation":false,"usgs":true,"family":"Letcher","given":"B.","middleInitial":"H.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":445505,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Smith, E.P.","contributorId":73208,"corporation":false,"usgs":true,"family":"Smith","given":"E.P.","email":"","affiliations":[],"preferred":false,"id":445507,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70033986,"text":"70033986 - 2011 - Norovirus outbreak caused by a new septic system in a dolomite aquifer","interactions":[],"lastModifiedDate":"2018-01-31T17:14:17","indexId":"70033986","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Norovirus outbreak caused by a new septic system in a dolomite aquifer","docAbstract":"<p><span>Septic systems that are built in compliance with regulations are generally not expected to be the cause of groundwater borne disease outbreaks, especially in areas with thick vadose zones. However, this case study demonstrates that a disease outbreak can occur in such a setting and outlines the combination of epidemiological, microbiological, and hydrogeological methods used to confirm the source of the outbreak. In early June 2007, 229 patrons and employees of a new restaurant in northeastern Wisconsin were affected by acute gastroenteritis; 6 people were hospitalized. Epidemiological case-control analysis indicated that drinking the restaurant's well water was associated with illness (odds ratio = 3.2, 95% confidence interval = 0.9 to 11.4,&nbsp;</span><i>P</i><span><span>&nbsp;</span>= 0.06). Microbiological analysis (quantitative reverse transcription-polymerase chain reaction) measured 50 genomic copies per liter of norovirus genogroup I in the well water. Nucleotide sequencing determined the genotype as GI.2 and further showed the identical virus was present in patrons' stool specimens and in the septic tank. Tracer tests using dyes injected at two points in the septic system showed that effluent was traveling from the tanks (through a leaking fitting) and infiltration field to the well in 6 and 15 d, respectively. The restaurant septic system and well (85-m deep, in a fractured dolomite aquifer) both conformed to state building codes. The early arrival of dye in the well, which was 188 m from the septic field and located beneath a 35-m thick vadose zone, demonstrates that in highly vulnerable hydrogeological settings, compliance with regulations may not provide adequate protection from fecal pathogens.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6584.2010.00686.x","usgsCitation":"Borchardt, M., Bradbury, K.R., Alexander, E., Kolberg, R., Alexander, S., Archer, J.R., Braatz, L., Forest, B., Green, J., and Spencer, S.K., 2011, Norovirus outbreak caused by a new septic system in a dolomite aquifer: Ground Water, v. 49, no. 1, p. 85-97, https://doi.org/10.1111/j.1745-6584.2010.00686.x.","productDescription":"13 p.","startPage":"85","endPage":"97","costCenters":[],"links":[{"id":244506,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wisconsin","county":"Door County","otherGeospatial":"Door 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K.","contributorId":96118,"corporation":false,"usgs":true,"family":"Spencer","given":"S.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":443526,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70037021,"text":"70037021 - 2011 - Threshold responses of songbirds to long-term timber management on an active industrial forest","interactions":[],"lastModifiedDate":"2017-11-14T15:07:20","indexId":"70037021","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1687,"text":"Forest Ecology and Management","active":true,"publicationSubtype":{"id":10}},"title":"Threshold responses of songbirds to long-term timber management on an active industrial forest","docAbstract":"<p><span>Forest managers often seek to balance economic benefits from timber harvesting with maintenance of habitat for wildlife, ecosystem function, and human uses. Most research on the relationship between avian abundance and active timber management has been short-term, lasting one to two years, creating the need to investigate long-term avian responses and to identify harvest thresholds when a small change in habitat results in a disproportionate response in relative abundance and nest success. Our objectives were to identify trends in relative abundance and nest success and to identify landscape-scale disturbance thresholds for avian species and habitat guilds in response to a variety of harvest treatments (clear-cuts, heavy and light partial harvests) over 14 years. We conducted point counts and monitored nests at an industrial forest in the central Appalachians of West Virginia during 1996–1998, 2001–2003, and 2007–2009. Early successional species increased in relative abundance across all three time periods, whereas interior-edge and forest-interior guilds peaked in relative abundance mid-study after which the forest-interior guild declined. Of 41 species with &gt;10 detections, four (10%) declined significantly, 13 (32%) increased significantly (only three species among all periods), and 9 (22%) peaked in abundance mid-study (over the entire study period, four species had no significant change in abundance, four declined, and one increased). Based on piecewise linear models, forest-interior and interior-edge guilds’ relative abundance harvest thresholds were 28% total harvests (all harvests combined), 10% clear-cut harvests, and 18% light partial harvests, after which abundances declined. Harvest thresholds for the early successional guild were 42% total harvests, 11% clear-cut harvest, and 10% light partial harvests, and relative abundances increased after surpassing thresholds albeit at a reduced rate of increase after the clear-cut threshold. Threshold confidence intervals for individual species overlapped their guild threshold intervals 91% of the time. Even though relative abundance of most species (80%) did not decline as the area affected by timber management increased, implementing management at or below our approximate forest-interior and interior-edge harvest thresholds would reduce the number of declining species by half, maintain higher relative abundances of four species with a net decline in abundance but that peaked in abundance mid-study, and maintain higher relative abundances of ten additional species. In contrast, this management strategy also would prevent the increase in relative abundance of seven species and limit the increase in abundance of three species that increased throughout the study.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.foreco.2011.04.011","issn":"03781127","usgsCitation":"Becker, D.A., Wood, P.B., Keyser, P.D., Wigley, T.B., Dellinger, R., and Weakland, C.A., 2011, Threshold responses of songbirds to long-term timber management on an active industrial forest: Forest Ecology and Management, v. 262, no. 3, p. 449-460, https://doi.org/10.1016/j.foreco.2011.04.011.","productDescription":"12 p.","startPage":"449","endPage":"460","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-026766","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":244984,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217072,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.foreco.2011.04.011"}],"country":"United States","state":"West Virginia","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -79.9530029296875,\n              39.172658670429946\n            ],\n            [\n              -79.51904296874999,\n              39.089567854849314\n            ],\n            [\n              -79.80743408203124,\n              38.63189092902837\n            ],\n            [\n              -80.101318359375,\n              38.72623322072787\n            ],\n            [\n              -79.9530029296875,\n              39.172658670429946\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"262","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb354e4b08c986b325d1b","contributors":{"authors":[{"text":"Becker, Douglas A.","contributorId":169852,"corporation":false,"usgs":false,"family":"Becker","given":"Douglas","email":"","middleInitial":"A.","affiliations":[{"id":16210,"text":"Division of Forestry and Natural Resources, West Virginia University","active":true,"usgs":false}],"preferred":false,"id":459014,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wood, Petra Bohall pbwood@usgs.gov","contributorId":1791,"corporation":false,"usgs":true,"family":"Wood","given":"Petra","email":"pbwood@usgs.gov","middleInitial":"Bohall","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"preferred":false,"id":459013,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keyser, Patrick D.","contributorId":146945,"corporation":false,"usgs":false,"family":"Keyser","given":"Patrick","email":"","middleInitial":"D.","affiliations":[{"id":12716,"text":"University of Tennessee","active":true,"usgs":false}],"preferred":false,"id":459009,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wigley, T. Bently","contributorId":169749,"corporation":false,"usgs":false,"family":"Wigley","given":"T.","email":"","middleInitial":"Bently","affiliations":[],"preferred":false,"id":459012,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dellinger, Rachel","contributorId":27716,"corporation":false,"usgs":true,"family":"Dellinger","given":"Rachel","email":"","affiliations":[],"preferred":false,"id":459011,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Weakland, Cathy A.","contributorId":26908,"corporation":false,"usgs":true,"family":"Weakland","given":"Cathy","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":459010,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70034115,"text":"70034115 - 2011 - Assessment of field-related influences on polychlorinated biphenyl exposures and sorbent amendment using polychaete bioassays and passive sampler measurements","interactions":[],"lastModifiedDate":"2020-01-11T11:20:13","indexId":"70034115","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Assessment of field-related influences on polychlorinated biphenyl exposures and sorbent amendment using polychaete bioassays and passive sampler measurements","docAbstract":"<p>Field-related influences on polychlorinated biphenyl (PCB) exposure were evaluated by employing caged deposit-feeders, Neanthes arenaceodentata, along with polyoxymethylene (POM) samplers using parallel in situ and ex situ bioassays with homogenized untreated or activated carbon (AC) amended sediment. The AC amendment achieved a remedial efficiency in reducing bioaccumulation by 90% in the laboratory and by 44% in the field transplants. In situ measurements showed that PCB uptake by POM samplers was greater for POM placed in the surface sediment compared with the underlying AC amendment, suggesting that tidal exchange of surrounding material with similar PCB availability as untreated sediment was redeposited in the cages. Polychlorinated biphenyls bioaccumulation with caged polychaetes from untreated sediment was half as large under field conditions compared with laboratory conditions. A biodynamic model was used to confirm and quantify the different processes that could have influenced these results. Three factors appeared most influential in the bioassays: AC amendment significantly reduces bioavailability under laboratory and field conditions; sediment deposition within test cages in the field partially masks the remedial benefit of underlying AC-amended sediment; and deposit-feeders exhibit less PCB uptake from untreated sediment when feeding is reduced. Ex situ and in situ experiments inevitably show some differences that are associated with measurement methods and effects of the environment. Parallel ex situ and in situ bioassays, passive sampler measurements, and quantifying important processes with a model can tease apart these field influences.&nbsp;</p>","language":"English","publisher":"Wiley","doi":"10.1002/etc.367","issn":"07307268","usgsCitation":"Janssen, E., Oen, A., Luoma, S.N., and Luthy, R., 2011, Assessment of field-related influences on polychlorinated biphenyl exposures and sorbent amendment using polychaete bioassays and passive sampler measurements: Environmental Toxicology and Chemistry, v. 30, no. 1, p. 173-180, https://doi.org/10.1002/etc.367.","productDescription":"8 p.","startPage":"173","endPage":"180","numberOfPages":"8","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":244513,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-01-01","publicationStatus":"PW","scienceBaseUri":"5059ee30e4b0c8380cd49bf8","contributors":{"authors":[{"text":"Janssen, E.M.","contributorId":78582,"corporation":false,"usgs":true,"family":"Janssen","given":"E.M.","email":"","affiliations":[],"preferred":false,"id":444170,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Oen, A.M.","contributorId":87782,"corporation":false,"usgs":true,"family":"Oen","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":444172,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"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":779342,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Luthy, R.G.","contributorId":36335,"corporation":false,"usgs":true,"family":"Luthy","given":"R.G.","email":"","affiliations":[],"preferred":false,"id":444169,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70036216,"text":"70036216 - 2011 - Hillslope response to knickpoint migration in the Southern Appalachians: Implications for the evolution of post-orogenic landscapes","interactions":[],"lastModifiedDate":"2021-01-25T19:26:19.800417","indexId":"70036216","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1425,"text":"Earth Surface Processes and Landforms","active":true,"publicationSubtype":{"id":10}},"title":"Hillslope response to knickpoint migration in the Southern Appalachians: Implications for the evolution of post-orogenic landscapes","docAbstract":"<p><span>The southern Appalachians represent a landscape characterized by locally high topographic relief, steep slopes, and frequent mass movement in the absence of significant tectonic forcing for at least the last 200 Ma. The fundamental processes responsible for landscape evolution in a post‐orogenic landscape remain enigmatic. The non‐glaciated Cullasaja River basin of south‐western North Carolina, with uniform lithology, frequent debris flows, and the availability of high‐resolution airborne lidar DEMs, is an ideal natural setting to study landscape evolution in a post‐orogenic landscape through the lens of hillslope–channel coupling. This investigation is limited to channels with upslope contributing areas &gt;2.7 km</span><sup>2</sup><span>, a conservative estimate of the transition from fluvial to debris‐flow dominated channel processes. Values of normalized hypsometry, hypsometric integral, and mean slope vs elevation are used for 14 tributary basins and the Cullasaja basin as a whole to characterize landscape evolution following upstream knickpoint migration. Results highlight the existence of a transient spatial relationship between knickpoints present along the fluvial network of the Cullasaja basin and adjacent hillslopes. Metrics of topography (relief, slope gradient) and hillslope activity (landslide frequency) exhibit significant downstream increases below the current position of major knickpoints. The transient effect of knickpoint‐driven channel incision on basin hillslopes is captured by measuring the relief, mean slope steepness, and mass movement frequency of tributary basins and comparing these results with the distance from major knickpoints along the Cullasaja River. A conceptual model of area–elevation and slope distributions is presented that may be representative of post‐orogenic landscape evolution in analogous geologic settings. Importantly, the model explains how knickpoint migration and channel–hillslope coupling is an important factor in tectonically‐inactive (i.e. post‐orogenic) orogens for the maintenance of significant relief, steep slopes, and weathering‐limited hillslopes.</span></p>","language":"English","publisher":"Wiley","doi":"10.1002/esp.2150","issn":"01979337","usgsCitation":"Wegmann, S., Franke, K., Hughes, S., Lewis, R., Lyons, N., Paris, P., Ross, K., Bauer, J., and Witt, A., 2011, Hillslope response to knickpoint migration in the Southern Appalachians: Implications for the evolution of post-orogenic landscapes: Earth Surface Processes and Landforms, v. 36, no. 9, p. 1254-1267, https://doi.org/10.1002/esp.2150.","productDescription":"14 p.","startPage":"1254","endPage":"1267","costCenters":[],"links":[{"id":246150,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218165,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/esp.2150"}],"country":"United States","state":"North Carolina","otherGeospatial":"Blue Ridge Escarpment","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -84.034423828125,\n              34.9895035675793\n            ],\n            [\n              -82.7435302734375,\n              34.9895035675793\n            ],\n            [\n              -82.7435302734375,\n              35.61711648382185\n            ],\n            [\n              -84.034423828125,\n              35.61711648382185\n            ],\n            [\n              -84.034423828125,\n              34.9895035675793\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"36","issue":"9","noUsgsAuthors":false,"publicationDate":"2011-03-28","publicationStatus":"PW","scienceBaseUri":"505a314fe4b0c8380cd5ddfe","contributors":{"authors":[{"text":"Wegmann, S.F.G.","contributorId":27303,"corporation":false,"usgs":true,"family":"Wegmann","given":"S.F.G.","email":"","affiliations":[],"preferred":false,"id":454929,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Franke, K.L.","contributorId":60894,"corporation":false,"usgs":true,"family":"Franke","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":454932,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hughes, S.","contributorId":10384,"corporation":false,"usgs":true,"family":"Hughes","given":"S.","affiliations":[],"preferred":false,"id":454926,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lewis, R.Q.","contributorId":91910,"corporation":false,"usgs":true,"family":"Lewis","given":"R.Q.","affiliations":[],"preferred":false,"id":454934,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lyons, N.","contributorId":51141,"corporation":false,"usgs":true,"family":"Lyons","given":"N.","email":"","affiliations":[],"preferred":false,"id":454930,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Paris, P.","contributorId":56491,"corporation":false,"usgs":true,"family":"Paris","given":"P.","email":"","affiliations":[],"preferred":false,"id":454931,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ross, K.","contributorId":15050,"corporation":false,"usgs":true,"family":"Ross","given":"K.","affiliations":[],"preferred":false,"id":454927,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Bauer, J.B.","contributorId":67293,"corporation":false,"usgs":true,"family":"Bauer","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":454933,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Witt, A.C.","contributorId":26146,"corporation":false,"usgs":true,"family":"Witt","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":454928,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70033970,"text":"70033970 - 2011 - Classification of MEC with the ALLTEM at Camp Stanley, Texas","interactions":[],"lastModifiedDate":"2012-03-12T17:21:47","indexId":"70033970","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3317,"text":"SEG Technical Program Expanded Abstracts","active":true,"publicationSubtype":{"id":10}},"title":"Classification of MEC with the ALLTEM at Camp Stanley, Texas","docAbstract":"The ALLTEM is a multi-axis electromagnetic induction system designed for unexploded ordnance UXO applications. It uses a continuous triangle-wave excitation and provides good late-time signal-to-noise ratio SNR especially for ferrous targets. Multi-axis transmitter Tx and receiver Rx systems such as ALLTEM provide a richer data set from which to invert for the target parameters required to distinguish between clutter and UXO. Inversions of field data acquired between 2006 and 2010 over the Army's UXO Standardized Test sites at the Yuma Proving Ground YPG in Arizona and at the Aberdeen Proving Ground APG in Maryland have produced reasonable and generally repeatable results for many UXO items buried at different orientations and depths. In February-March 2011 ALLTEM data was acquired at two locations on the Camp Stanley Storage Activity CSSA just north of San Antonio, Texas. Camp Stanley is used to store munitions as well as test, fire, and overhaul munitions components. Site B-20 is an open burn/open detonation OBOD area and Site B-27 consists of narrow trenches blasted into limestone containing buried range and munitions debris and possibly MEC. The processing, analysis, and classification techniques developed at the controlled environments of YPG and APG have been applied to these two \"live\" sites at Camp Stanley. ALLTEM data analysis includes both classical numerical inversion of data from each anomaly and clustering of the raw data by means of a self-organizing map SOM via generalized neural network algorithms. Final classification consists of an integration of both the numerical and SOM results. ?? 2011 Society of Exploration Geophysicists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"SEG Technical Program Expanded Abstracts","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1190/1.3627456","issn":"10523812","usgsCitation":"Asch, T., Moulton, C., and Smith, D., 2011, Classification of MEC with the ALLTEM at Camp Stanley, Texas: SEG Technical Program Expanded Abstracts, v. 30, no. 1, p. 1363-1367, https://doi.org/10.1190/1.3627456.","startPage":"1363","endPage":"1367","numberOfPages":"5","costCenters":[],"links":[{"id":216860,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1190/1.3627456"},{"id":244758,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-05-25","publicationStatus":"PW","scienceBaseUri":"5059f618e4b0c8380cd4c5b7","contributors":{"authors":[{"text":"Asch, T.","contributorId":95709,"corporation":false,"usgs":true,"family":"Asch","given":"T.","email":"","affiliations":[],"preferred":false,"id":443459,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moulton, C.","contributorId":24198,"corporation":false,"usgs":true,"family":"Moulton","given":"C.","email":"","affiliations":[],"preferred":false,"id":443457,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, D.V.","contributorId":31143,"corporation":false,"usgs":true,"family":"Smith","given":"D.V.","email":"","affiliations":[],"preferred":false,"id":443458,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70034135,"text":"70034135 - 2011 - Developing a Scenario for widespread use: Best practices, lessons learned","interactions":[],"lastModifiedDate":"2012-03-12T17:21:43","indexId":"70034135","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1436,"text":"Earthquake Spectra","active":true,"publicationSubtype":{"id":10}},"title":"Developing a Scenario for widespread use: Best practices, lessons learned","docAbstract":"The ShakeOut Scenario is probably the most widely known and used earthquake scenario created to date. Much of the credit for its widespread dissemination and application lies with scenario development criteria that focused on the needs and involvement of end users and with a suite of products that tailored communication of the results to varied end users, who ranged from emergency managers to the general public, from corporations to grassroots organizations. Products were most effective when they were highly visual, when they emphasized the findings of social scientists, and when they communicated the experience of living through the earthquake. This paper summarizes the development criteria and the products that made the ShakeOut Scenario so widely known and used, and it provides some suggestions for future improvements. ?? 2011, Earthquake Engineering Research Institute.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earthquake Spectra","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1193/1.3574445","issn":"87552930","usgsCitation":"Perry, S., Jones, L., and Cox, D., 2011, Developing a Scenario for widespread use: Best practices, lessons learned: Earthquake Spectra, v. 27, no. 2, p. 263-272, https://doi.org/10.1193/1.3574445.","startPage":"263","endPage":"272","numberOfPages":"10","costCenters":[],"links":[{"id":475352,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://resolver.caltech.edu/CaltechAUTHORS:20110926-092227680","text":"External Repository"},{"id":244869,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216966,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1193/1.3574445"}],"volume":"27","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-05-01","publicationStatus":"PW","scienceBaseUri":"505a0007e4b0c8380cd4f54b","contributors":{"authors":[{"text":"Perry, S.","contributorId":70340,"corporation":false,"usgs":true,"family":"Perry","given":"S.","email":"","affiliations":[],"preferred":false,"id":444265,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jones, L.","contributorId":26084,"corporation":false,"usgs":true,"family":"Jones","given":"L.","affiliations":[],"preferred":false,"id":444264,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cox, D.","contributorId":72599,"corporation":false,"usgs":true,"family":"Cox","given":"D.","affiliations":[],"preferred":false,"id":444266,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70034204,"text":"70034204 - 2011 - Historical influence of soil and water management on sediment and carbon budgets in the United States","interactions":[],"lastModifiedDate":"2012-03-12T17:21:44","indexId":"70034204","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":835,"text":"Applied Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Historical influence of soil and water management on sediment and carbon budgets in the United States","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.apgeochem.2011.03.118","issn":"08832927","usgsCitation":"Sundquist, E., Ackerman, K., Stallard, R., and Bliss, N., 2011, Historical influence of soil and water management on sediment and carbon budgets in the United States: Applied Geochemistry, v. 26, no. SUPPL., https://doi.org/10.1016/j.apgeochem.2011.03.118.","costCenters":[],"links":[{"id":475232,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/1912/4978","text":"External Repository"},{"id":216941,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2011.03.118"},{"id":244843,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"SUPPL.","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3191e4b0c8380cd5e024","contributors":{"authors":[{"text":"Sundquist, E.T.","contributorId":13990,"corporation":false,"usgs":true,"family":"Sundquist","given":"E.T.","email":"","affiliations":[],"preferred":false,"id":444584,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ackerman, K.V.","contributorId":88464,"corporation":false,"usgs":true,"family":"Ackerman","given":"K.V.","email":"","affiliations":[],"preferred":false,"id":444586,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stallard, R.F.","contributorId":30247,"corporation":false,"usgs":true,"family":"Stallard","given":"R.F.","email":"","affiliations":[],"preferred":false,"id":444585,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bliss, N.B. 0000-0003-2409-5211","orcid":"https://orcid.org/0000-0003-2409-5211","contributorId":104094,"corporation":false,"usgs":true,"family":"Bliss","given":"N.B.","affiliations":[],"preferred":false,"id":444587,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70036286,"text":"70036286 - 2011 - Tremor reveals stress shadowing, deep postseismic creep, and depth-dependent slip recurrence on the lower-crustal San Andreas fault near Parkfield","interactions":[],"lastModifiedDate":"2012-12-05T12:45:23","indexId":"70036286","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","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":"Tremor reveals stress shadowing, deep postseismic creep, and depth-dependent slip recurrence on the lower-crustal San Andreas fault near Parkfield","docAbstract":"The 2003 magnitude 6.5 San Simeon and the 2004 magnitude 6.0 Parkfield earthquakes induced small, but significant, static stress changes in the lower crust on the central San Andreas fault, where recently detected tectonic tremor sources provide new constraints on deep fault creep processes. We find that these earthquakes affect tremor rates very differently, consistent with their differing transferred static shear stresses. The San Simeon event appears to have cast a \"stress shadow\" north of Parkfield, where tremor activity was stifled for 3-6 weeks. In contrast, the 2004 Parkfield earthquake dramatically increased tremor activity rates both north and south of Parkfield, allowing us to track deep postseismic slip. Following this event, rates initially increased by up to two orders of magnitude for the relatively shallow tremor sources closest to the rupture, with activity in some sources persisting above background rates for more than a year. We also observe strong depth dependence in tremor recurrence patterns, with shallower sources generally exhibiting larger, less-frequent bursts, possibly signaling a transition toward steady creep with increasing temperature and depth. Copyright 2011 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2011GL047863","isbn":"00948276","usgsCitation":"Shelly, D.R., and Johnson, K.M., 2011, Tremor reveals stress shadowing, deep postseismic creep, and depth-dependent slip recurrence on the lower-crustal San Andreas fault near Parkfield: Geophysical Research Letters, v. 38, https://doi.org/10.1029/2011GL047863.","productDescription":"6 p.","startPage":"L13312","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":475413,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2011gl047863","text":"Publisher Index Page"},{"id":246279,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218281,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2011GL047863"}],"country":"United States","state":"California","city":"Parkfield;San Simeon","otherGeospatial":"San Andreas Fault","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -121.2,35.4 ], [ -121.2,36.1 ], [ -120.1,36.1 ], [ -120.1,35.4 ], [ -121.2,35.4 ] ] ] } } ] }","volume":"38","noUsgsAuthors":false,"publicationDate":"2011-07-12","publicationStatus":"PW","scienceBaseUri":"505bb7bee4b08c986b32745a","contributors":{"authors":[{"text":"Shelly, David R. dshelly@usgs.gov","contributorId":2978,"corporation":false,"usgs":true,"family":"Shelly","given":"David","email":"dshelly@usgs.gov","middleInitial":"R.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":455266,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, Kaj M.","contributorId":92526,"corporation":false,"usgs":true,"family":"Johnson","given":"Kaj","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":455267,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70034248,"text":"70034248 - 2011 - Effects of biologically-active chemical mixtures on fish in a wastewater-impacted urban stream","interactions":[],"lastModifiedDate":"2012-03-12T17:21:46","indexId":"70034248","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Effects of biologically-active chemical mixtures on fish in a wastewater-impacted urban stream","docAbstract":"Stream flow in urban aquatic ecosystems often is maintained by water-reclamation plant (WRP) effluents that contain mixtures of natural and anthropogenic chemicals that persist through the treatment processes. In effluent-impacted streams, aquatic organisms such as fish are continuously exposed to biologically-active chemicals throughout their life cycles. The North Shore Channel of the Chicago River (Chicago, Illinois) is part of an urban ecosystem in which > 80% of the annual flow consists of effluent from the North Side WRP. In this study, multiple samplings of the effluent and stream water were conducted and fish (largemouth bass and carp) were collected on 2 occasions from the North Shore Channel. Fish also were collected once from the Outer Chicago Harbor in Lake Michigan, a reference site not impacted by WRP discharges. Over 100 organic chemicals with differing behaviors and biological effects were measured, and 23 compounds were detected in all of the water samples analyzed. The most frequently detected and highest concentration (> 100 ??g/L) compounds were ethylenediaminetetraacetic acid and 4-nonylphenolmono-to-tetraethoxycarboxylic acids. Other biologically-active chemicals including bisphenol A, 4-nonylphenol, 4-nonylphenolmono-to-tetraethoxylates, 4- tert-octylphenol, and 4- tert-octylphenolmono-to-tetraethoxylates were detected at lower concentrations (< 5 ??g/L). The biogenic steroidal hormones 17??-estradiol, estrone, testosterone, 4-androstene-3,17-dione, and cis-androsterone were detected at even lower concentrations (< 0.005 ??g/L). There were slight differences in concentrations between the North Side WRP effluent and the North Shore Channel, indicating minimal in-stream attenuation. Fish populations are continuously exposed to mixtures of biologically-active chemicals because of the relative persistency of the chemicals with respect to stream hydraulic residence time, and the lack of a fresh water source for dilution. The majority of male fish exhibited vitellogenin induction, a physiological response consistent with exposure to estrogenic compounds. Tissue-level signs of reproductive disruption, such as ovatestis, were not observed. ?? 2011.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Science of the Total Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.scitotenv.2011.06.039","issn":"00489697","usgsCitation":"Barber, L.B., Brown, G., Nettesheim, T., Murphy, E., Bartell, S., and Schoenfuss, H., 2011, Effects of biologically-active chemical mixtures on fish in a wastewater-impacted urban stream: Science of the Total Environment, v. 409, no. 22, p. 4720-4728, https://doi.org/10.1016/j.scitotenv.2011.06.039.","startPage":"4720","endPage":"4728","numberOfPages":"9","costCenters":[],"links":[{"id":216610,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.scitotenv.2011.06.039"},{"id":244491,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"409","issue":"22","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0698e4b0c8380cd51311","contributors":{"authors":[{"text":"Barber, L. B.","contributorId":64602,"corporation":false,"usgs":true,"family":"Barber","given":"L.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":444890,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brown, G.K.","contributorId":62362,"corporation":false,"usgs":true,"family":"Brown","given":"G.K.","email":"","affiliations":[],"preferred":false,"id":444889,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nettesheim, T.G.","contributorId":92891,"corporation":false,"usgs":true,"family":"Nettesheim","given":"T.G.","affiliations":[],"preferred":false,"id":444892,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Murphy, E.W.","contributorId":92515,"corporation":false,"usgs":true,"family":"Murphy","given":"E.W.","email":"","affiliations":[],"preferred":false,"id":444891,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bartell, S.E.","contributorId":40817,"corporation":false,"usgs":true,"family":"Bartell","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":444888,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Schoenfuss, H.L.","contributorId":103877,"corporation":false,"usgs":true,"family":"Schoenfuss","given":"H.L.","affiliations":[],"preferred":false,"id":444893,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70034313,"text":"70034313 - 2011 - Predicting breeding habitat for amphibians: A spatiotemporal analysis across Yellowstone National Park","interactions":[],"lastModifiedDate":"2021-04-22T17:01:03.465858","indexId":"70034313","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Predicting breeding habitat for amphibians: A spatiotemporal analysis across Yellowstone National Park","docAbstract":"<p><span>The ability to predict amphibian breeding across landscapes is important for informing land management decisions and helping biologists better understand and remediate factors contributing to declines in amphibian populations. We built geospatial models of likely breeding habitats for each of four amphibian species that breed in Yellowstone National Park (YNP). We used field data collected in 2000–2002 from 497 sites among 16 basins and predictor variables from geospatial models produced from remotely sensed data (e.g., digital elevation model, complex topographic index, landform data, wetland probability, and vegetative cover). Except for 31 sites in one basin that were surveyed in both 2000 and 2002, all sites were surveyed once. We used polytomous regression to build statistical models for each species of amphibian from (1) field survey site data only, (2) field data combined with data from geospatial models, and (3) data from geospatial models only. Based on measures of receiver operating characteristic (ROC) scores, models of the second type best explained likely breeding habitat because they contained the most information (ROC values ranged from 0.70 to 0.88). However, models of the third type could be applied to the entire YNP landscape and produced maps that could be verified with reserve field data. Accuracy rates for models built for single years were highly variable, ranging from 0.30 to 0.78. Accuracy rates for models built with data combined from multiple years were higher and less variable, ranging from 0.60 to 0.80. Combining results from the geospatial multiyear models yielded maps of “core” breeding areas (areas with high probability values for all three years) surrounded by areas that scored high for only one or two years, providing an estimate of variability among years. Such information can highlight landscape options for amphibian conservation. For example, our models identify alternative areas that could be protected for each species, including 6828–10 764 ha for tiger salamanders, 971–3017 ha for western toads, 4732–16 696 ha for boreal chorus frogs, and 4940–19 690 ha for Columbia spotted frogs.</span></p>","language":"English","publisher":"Ecological Society of America","doi":"10.1890/10-1261.1","issn":"10510761","usgsCitation":"Bartelt, P.E., Gallant, A.L., Klaver, R.W., Wright, C., Patla, D.A., and Peterson, C.R., 2011, Predicting breeding habitat for amphibians: A spatiotemporal analysis across Yellowstone National Park: Ecological Applications, v. 21, no. 7, p. 2530-2547, https://doi.org/10.1890/10-1261.1.","productDescription":"18 p.","startPage":"2530","endPage":"2547","costCenters":[],"links":[{"id":475420,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1890/10-1261.1","text":"Publisher Index Page"},{"id":244495,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216614,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1890/10-1261.1"}],"country":"United States","state":"Wyoming","otherGeospatial":"Yellowstone National Park","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -111.0772705078125,\n              44.18614312298759\n            ],\n            [\n              -109.8907470703125,\n              44.18614312298759\n            ],\n            [\n              -109.8907470703125,\n              45.092913646051144\n            ],\n            [\n              -111.0772705078125,\n              45.092913646051144\n            ],\n            [\n              -111.0772705078125,\n              44.18614312298759\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"21","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a81aae4b0c8380cd7b670","contributors":{"authors":[{"text":"Bartelt, Paul E.","contributorId":18895,"corporation":false,"usgs":true,"family":"Bartelt","given":"Paul","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":445202,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gallant, Alisa L. 0000-0002-3029-6637 gallant@usgs.gov","orcid":"https://orcid.org/0000-0002-3029-6637","contributorId":2940,"corporation":false,"usgs":true,"family":"Gallant","given":"Alisa","email":"gallant@usgs.gov","middleInitial":"L.","affiliations":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true},{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":445200,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Klaver, Robert W. 0000-0002-3263-9701 bklaver@usgs.gov","orcid":"https://orcid.org/0000-0002-3263-9701","contributorId":3285,"corporation":false,"usgs":true,"family":"Klaver","given":"Robert","email":"bklaver@usgs.gov","middleInitial":"W.","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true},{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"preferred":true,"id":445204,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wright, C.K.","contributorId":25780,"corporation":false,"usgs":true,"family":"Wright","given":"C.K.","affiliations":[],"preferred":false,"id":445201,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Patla, Debra A.","contributorId":40059,"corporation":false,"usgs":true,"family":"Patla","given":"Debra","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":445203,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Peterson, Charles R.","contributorId":95738,"corporation":false,"usgs":true,"family":"Peterson","given":"Charles","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":445199,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70046617,"text":"70046617 - 2011 - GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow","interactions":[],"lastModifiedDate":"2013-06-17T09:22:06","indexId":"70046617","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow","docAbstract":"This dataset, termed \"GAGES II\", an acronym for Geospatial Attributes of Gages for Evaluating Streamflow, version II, provides geospatial data and classifications for 9,322 stream gages maintained by the U.S. Geological Survey (USGS). It is an update to the original GAGES, which was published as a Data Paper on the journal Ecology's website (Falcone and others, 2010b) in 2010. The GAGES II dataset consists of gages which have had either 20+ complete years (not necessarily continuous) of discharge record since 1950, or are currently active, as of water year 2009, and whose watersheds lie within the United States, including Alaska, Hawaii, and Puerto Rico. Reference gages were identified based on indicators that they were the least-disturbed watersheds within the framework of broad regions, based on 12 major ecoregions across the United States. Of the 9,322 total sites, 2,057 are classified as reference, and 7,265 as non-reference. Of the 2,057 reference sites, 1,633 have (through 2009) 20+ years of record since 1950. Some sites have very long flow records: a number of gages have been in continuous service since 1900 (at least), and have 110 years of complete record (1900-2009) to date. The geospatial data include several hundred watershed characteristics compiled from national data sources, including environmental features (e.g. climate – including historical precipitation, geology, soils, topography) and anthropogenic influences (e.g. land use, road density, presence of dams, canals, or power plants). The dataset also includes comments from local USGS Water Science Centers, based on Annual Data Reports, pertinent to hydrologic modifications and influences. The data posted also include watershed boundaries in GIS format. This overall dataset is different in nature to the USGS Hydro-Climatic Data Network (HCDN; Slack and Landwehr 1992), whose data evaluation ended with water year 1988. The HCDN identifies stream gages which at some point in their history had periods which represented natural flow, and the years in which those natural flows occurred were identified (i.e. not all HCDN sites were in reference condition even in 1988, for example, 02353500). The HCDN remains a valuable indication of historic natural streamflow data. However, the goal of this dataset was to identify watersheds which currently have near-natural flow conditions, and the 2,057 reference sites identified here were derived independently of the HCDN. A subset, however, noted in the BasinID worksheet as “HCDN-2009”, has been identified as an updated list of 743 sites for potential hydro-climatic study. The HCDN-2009 sites fulfill all of the following criteria: (a) have 20 years of complete and continuous flow record in the last 20 years (water years 1990-2009), and were thus also currently active as of 2009, (b) are identified as being in current reference condition according to the GAGES-II classification, (c) have less than 5 percent imperviousness as measured from the NLCD 2006, and (d) were not eliminated by a review from participating state Water Science Center evaluators. The data posted here consist of the following items:- This point shapefile, with summary data for the 9,322 gages.- A zip file containing basin characteristics, variable definitions, and a more detailed report.- A zip file containing shapefiles of basin boundaries, organized by classification and aggregated ecoregion.- A zip file containing mainstem stream lines (Arc line coverages) for each gage.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70046617","usgsCitation":"Falcone, J.A., 2011, GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow, Dataset, https://doi.org/10.3133/70046617.","productDescription":"Dataset","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":273766,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":273765,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/gagesII_Sept2011.xml"}],"country":"United States","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.000000,5.402082 ], [ -180.000000,90.000000 ], [ 180.000000,90.000000 ], [ 180.000000,5.402082 ], [ -180.000000,5.402082 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51c02feae4b0ee1529ed3cdc","contributors":{"authors":[{"text":"Falcone, James A. 0000-0001-7202-3592 jfalcone@usgs.gov","orcid":"https://orcid.org/0000-0001-7202-3592","contributorId":614,"corporation":false,"usgs":true,"family":"Falcone","given":"James","email":"jfalcone@usgs.gov","middleInitial":"A.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":479872,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70036469,"text":"70036469 - 2011 - Characterizing fragmentation of the collective forests in southern China from multitemporal Landsat imagery: A case study from Kecheng district of Zhejiang province","interactions":[],"lastModifiedDate":"2017-04-06T13:23:44","indexId":"70036469","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":836,"text":"Applied Geography","active":true,"publicationSubtype":{"id":10}},"title":"Characterizing fragmentation of the collective forests in southern China from multitemporal Landsat imagery: A case study from Kecheng district of Zhejiang province","docAbstract":"<p><span>Tropical and subtropical forests provide important ecosystem goods and services including carbon sequestration and biodiversity conservation. These forests are facing increasing socioeconomic pressures and are rapidly being degraded and fragmented. This analysis focuses on the rate of change and patterns of fragmentation in a collective forest area in Zhejiang province, China, during the time period 1988–2005. The research consisted of two parts. The first was the development of general land cover maps and the identification of land cover changes by interpreting Landsat Thematic Mapper (TM) and Enhanced Thematic Mapper Plus (ETM+) time series imagery. The second part involved the computation and analysis of forest fragmentation metrics. For this portion of the study, fragmentation statistics were analyzed, and images were developed to depict forest fragmentation patterns and trends. Results revealed that there was a net loss of 7.8% in forest coverage, dropping from 66.8% in 1988 to 59.0% in 2005, primarily caused by agricultural expansion and poor forest management practices. An acceleration of forest fragmentation was also witnessed during the time intervals, which was evidenced by a decreasing trend in interior forest (57.2% in 1988, 55.0% in 1996 and 54.8% in 2005 respectively) coupled with the scales of the selected geospatial metrics. Continued forest loss and fragmentation are closely correlated with the existing political, educational, institutional and economic processes of contemporary China. To unlock the developmental potentials of the collective forests and to effectively mitigate the rate of forest loss and fragmentation, reforms of forest tenure and ecological immigration practices are recognized as a prospective alternative. The produced fragmentation maps further illustrates the importance of assessing landscape change history, especially the spatiotemporal patterns of forest fragments, when developing landscape level plans for biodiversity conservation, land use management and ecologically sustainable forestry.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.apgeog.2011.02.004","issn":"01436228","usgsCitation":"Li, M., Zhu, Z., Vogelmann, J., Xu, D., Wen, W., and Liu, A., 2011, Characterizing fragmentation of the collective forests in southern China from multitemporal Landsat imagery: A case study from Kecheng district of Zhejiang province: Applied Geography, v. 31, no. 3, p. 1026-1035, https://doi.org/10.1016/j.apgeog.2011.02.004.","productDescription":"10 p.","startPage":"1026","endPage":"1035","numberOfPages":"10","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":488024,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.apgeog.2011.02.004","text":"Publisher Index Page"},{"id":218586,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeog.2011.02.004"},{"id":246612,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f4fee4b0c8380cd4c014","contributors":{"authors":[{"text":"Li, M.","contributorId":97246,"corporation":false,"usgs":true,"family":"Li","given":"M.","email":"","affiliations":[],"preferred":false,"id":456298,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zhu, Z.","contributorId":10898,"corporation":false,"usgs":true,"family":"Zhu","given":"Z.","email":"","affiliations":[],"preferred":false,"id":456293,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vogelmann, James E. 0000-0002-0804-5823","orcid":"https://orcid.org/0000-0002-0804-5823","contributorId":16604,"corporation":false,"usgs":true,"family":"Vogelmann","given":"James E.","affiliations":[],"preferred":false,"id":456294,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Xu, D.","contributorId":41231,"corporation":false,"usgs":true,"family":"Xu","given":"D.","email":"","affiliations":[],"preferred":false,"id":456296,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wen, W.","contributorId":17866,"corporation":false,"usgs":true,"family":"Wen","given":"W.","email":"","affiliations":[],"preferred":false,"id":456295,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Liu, A.","contributorId":90110,"corporation":false,"usgs":true,"family":"Liu","given":"A.","email":"","affiliations":[],"preferred":false,"id":456297,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70046616,"text":"70046616 - 2011 - Water sample locations for Fanno Creek, Oregon","interactions":[],"lastModifiedDate":"2013-06-17T09:03:30","indexId":"70046616","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Water sample locations for Fanno Creek, Oregon","docAbstract":"Fanno Creek is a tributary to the Tualatin River and flows though parts of the southwest Portland metropolitan area. The stream is heavily influenced by urban runoff and shows characteristic flashy streamflow and poor water quality commonly associated with urban streams. This data set represents the locations where water-quality samples were collected.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70046616","usgsCitation":"Sobieszczyk, S., 2011, Water sample locations for Fanno Creek, Oregon, Dataset, https://doi.org/10.3133/70046616.","productDescription":"Dataset","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":273762,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":273761,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/fannoCk_water_samples.xml"}],"country":"United States","state":"Oregon","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -129.351779,39.745375 ], [ -129.351779,55.265926 ], [ -109.448056,55.265926 ], [ -109.448056,39.745375 ], [ -129.351779,39.745375 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51c02ff9e4b0ee1529ed3d87","contributors":{"authors":[{"text":"Sobieszczyk, Steven 0000-0002-0834-8437 ssobie@usgs.gov","orcid":"https://orcid.org/0000-0002-0834-8437","contributorId":885,"corporation":false,"usgs":true,"family":"Sobieszczyk","given":"Steven","email":"ssobie@usgs.gov","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":true,"id":479871,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70005027,"text":"70005027 - 2011 - Q is for quartz","interactions":[],"lastModifiedDate":"2013-06-05T10:26:15","indexId":"70005027","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":674,"text":"Aggregates Manager","active":true,"publicationSubtype":{"id":10}},"title":"Q is for quartz","docAbstract":"This versatile mineral has been used in everything from ceremonial rattles to sonar transducers to quartz watches.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Aggregates Manager","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Randall Reilly Publishing","usgsCitation":"Langer, W.H., 2011, Q is for quartz: Aggregates Manager, v. 16, no. 5, p. 36-36.","productDescription":"1 p.","startPage":"36","endPage":"36","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":204072,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":24507,"rank":200,"type":{"id":11,"text":"Document"},"url":"https://www.aggman.com/carved-in-stone-15/","linkFileType":{"id":5,"text":"html"}}],"volume":"16","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a8fe4b07f02db6556f3","contributors":{"authors":[{"text":"Langer, W. H.","contributorId":44932,"corporation":false,"usgs":true,"family":"Langer","given":"W.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":351835,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70005028,"text":"70005028 - 2011 - R is for rocksicle","interactions":[],"lastModifiedDate":"2013-06-05T10:28:12","indexId":"70005028","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":674,"text":"Aggregates Manager","active":true,"publicationSubtype":{"id":10}},"title":"R is for rocksicle","docAbstract":"A Front Range perspective on managing and shipping aggregates.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Aggregates Manager","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Randall Reilly Publishing","usgsCitation":"Langer, W.H., 2011, R is for rocksicle: Aggregates Manager, v. 16, no. 6, p. 132-132.","productDescription":"1 p.","startPage":"132","endPage":"132","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":204071,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":24508,"rank":200,"type":{"id":11,"text":"Document"},"url":"https://www.aggman.com/carved-in-stone-16/","linkFileType":{"id":5,"text":"html"}}],"volume":"16","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db64a012","contributors":{"authors":[{"text":"Langer, W. H.","contributorId":44932,"corporation":false,"usgs":true,"family":"Langer","given":"W.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":351836,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70046615,"text":"70046615 - 2011 - Stream Centerline for Fanno Creek, Oregon","interactions":[],"lastModifiedDate":"2013-06-17T08:56:05","indexId":"70046615","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Stream Centerline for Fanno Creek, Oregon","docAbstract":"Fanno Creek is a tributary to the Tualatin River and flows though parts of the southwest Portland metropolitan area. The stream is heavily influenced by urban runoff and shows characteristic flashy streamflow and poor water quality commonly associated with urban streams. This data set represents the stream centerline of the current active channel as derived from light detection and ranging (LiDAR) data and aerial photographic imagery.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70046615","usgsCitation":"Sobieszczyk, S., 2011, Stream Centerline for Fanno Creek, Oregon, Dataset, https://doi.org/10.3133/70046615.","productDescription":"Dataset","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":273760,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":273759,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/fannoCk_stm_cntr_ln.xml"}],"country":"United States","state":"Oregon","otherGeospatial":"Fanno Creek","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -129.351779,39.745375 ], [ -129.351779,55.265926 ], [ -109.448056,55.265926 ], [ -109.448056,39.745375 ], [ -129.351779,39.745375 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51c02ff8e4b0ee1529ed3d6f","contributors":{"authors":[{"text":"Sobieszczyk, Steven 0000-0002-0834-8437 ssobie@usgs.gov","orcid":"https://orcid.org/0000-0002-0834-8437","contributorId":885,"corporation":false,"usgs":true,"family":"Sobieszczyk","given":"Steven","email":"ssobie@usgs.gov","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":true,"id":479870,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70046614,"text":"70046614 - 2011 - Solid sample locations for Fanno Creek, Oregon","interactions":[],"lastModifiedDate":"2013-06-17T08:45:39","indexId":"70046614","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Solid sample locations for Fanno Creek, Oregon","docAbstract":"Fanno Creek is a tributary to the Tualatin River and flows though parts of the southwest Portland metropolitan area. The stream is heavily influenced by urban runoff and shows characteristic flashy streamflow and poor water quality commonly associated with urban streams. This data set represents the locations where solid samples were collected.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70046614","usgsCitation":"Sobieszczyk, S., 2011, Solid sample locations for Fanno Creek, Oregon, Dataset, https://doi.org/10.3133/70046614.","productDescription":"Dataset","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":273758,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":273757,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/fannoCk_solid_samples.xml"}],"country":"United States","state":"Oregon","otherGeospatial":"Fanno Creek","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -129.351779,39.745375 ], [ -129.351779,55.265926 ], [ -109.448056,55.265926 ], [ -109.448056,39.745375 ], [ -129.351779,39.745375 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51c02ff7e4b0ee1529ed3d64","contributors":{"authors":[{"text":"Sobieszczyk, Steven 0000-0002-0834-8437 ssobie@usgs.gov","orcid":"https://orcid.org/0000-0002-0834-8437","contributorId":885,"corporation":false,"usgs":true,"family":"Sobieszczyk","given":"Steven","email":"ssobie@usgs.gov","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":true,"id":479869,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70034106,"text":"70034106 - 2011 - Anthropogenic influences on shoreline and nearshore evolution in the San Francisco Bay coastal system","interactions":[],"lastModifiedDate":"2017-10-30T12:59:27","indexId":"70034106","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1587,"text":"Estuarine, Coastal and Shelf Science","active":true,"publicationSubtype":{"id":10}},"title":"Anthropogenic influences on shoreline and nearshore evolution in the San Francisco Bay coastal system","docAbstract":"Analysis of four historical bathymetric surveys over a 132-year period has revealed significant changes to the morphology of the San Francisco Bar, an ebb-tidal delta at the mouth of San Francisco Bay estuary. From 1873 to 2005 the San Francisco Bar vertically-eroded an average of 80 cm over a 125 km<sup>2</sup> area, which equates to a total volume loss of 100 ± 52 million m<sup>3</sup> of fine- to coarse-grained sand. Comparison of the surveys indicates the entire ebb-tidal delta contracted radially, with the crest moving landward an average of 1 km. Long-term erosion of the ebb-tidal delta is hypothesized to be due to a reduction in the tidal prism of San Francisco Bay and a decrease in coastal sediment supply, both as a result of anthropogenic activities. Prior research indicates that the tidal prism of the estuary was reduced by 9% from filling, diking, and sedimentation. Compilation of historical records dating back to 1900 reveals that a minimum of 200 million m3 of sediment has been permanently removed from the San Francisco Bay coastal system through dredging, aggregate mining, and borrow pit mining. Of this total, ~54 million m<sup>3</sup> of sand-sized or coarser sediment was removed from central San Francisco Bay. With grain sizes comparable to the ebb-tidal delta, and its direct connection to the bay mouth, removal of sediments from central San Francisco Bay may limit the sand supply to the delta and open coast beaches.\n\nSWAN wave modeling illustrates that changes to the morphology of the San Francisco Bar have altered the alongshore wave energy distribution at adjacent Ocean Beach, and thus may be a significant factor in a persistent beach erosion ‘hot spot’ occurring in the area. Shoreline change analyses show that the sandy shoreline in the shadow of the ebb-tidal delta experienced long-term (1850s/1890s to 2002) and short-term (1960s/1980s to 2002) accretion while the adjacent sandy shoreline exposed to open-ocean waves experienced long-term and short-term erosion. Therefore, the recently observed accelerating rates of bay sediment removal, ebb-tidal delta erosion, and open coast beach erosion are all correlated temporally.","language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.ecss.2010.12.031","issn":"02727714","usgsCitation":"Dallas, K., and Barnard, P., 2011, Anthropogenic influences on shoreline and nearshore evolution in the San Francisco Bay coastal system: Estuarine, Coastal and Shelf Science, v. 92, no. 1, p. 195-204, https://doi.org/10.1016/j.ecss.2010.12.031.","productDescription":"10 p.","startPage":"195","endPage":"204","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true},{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true}],"links":[{"id":244837,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Francisco Bay","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.4985,37.4477 ], [ -122.4985,37.9649 ], [ -122.0419,37.9649 ], [ -122.0419,37.4477 ], [ -122.4985,37.4477 ] ] ] } } ] }","volume":"92","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ec5ae4b0c8380cd49201","contributors":{"authors":[{"text":"Dallas, K.L.","contributorId":85013,"corporation":false,"usgs":true,"family":"Dallas","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":444123,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barnard, P.L.","contributorId":20527,"corporation":false,"usgs":true,"family":"Barnard","given":"P.L.","email":"","affiliations":[],"preferred":false,"id":444122,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70034230,"text":"70034230 - 2011 - CO2 plume management in saline reservoir sequestration","interactions":[],"lastModifiedDate":"2012-03-12T17:21:45","indexId":"70034230","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"CO2 plume management in saline reservoir sequestration","docAbstract":"A significant difference between injecting CO2 into saline aquifers for sequestration and injecting fluids into oil reservoirs or natural gas into aquifer storage reservoirs is the availability and use of other production and injection wells surrounding the primary injection well(s). Of major concern for CO2 sequestration using a single well is the distribution of pressure and CO2 saturation within the injection zone. Pressure is of concern with regards to caprock integrity and potential migration of brine or CO2 outside of the injection zone, while CO2 saturation is of interest for storage rights and displacement efficiency. For oil reservoirs, the presence of additional wells is intended to maximize oil recovery by injecting CO2 into the same hydraulic flow units from which the producing wells are withdrawing fluids. Completing injectors and producers in the same flow unit increases CO2 throughput, maximizes oil displacement efficiency, and controls pressure buildup. Additional injectors may surround the CO2 injection well and oil production wells in order to provide external pressure to these wells to prevent the injected CO2 from migrating from the pattern between two of the producing wells. Natural gas storage practices are similar in that to reduce the amount of \"cushion\" gas and increase the amount of cycled or working gas, edge wells may be used for withdrawal of gas and center wells used for gas injection. This reduces loss of gas to the formation via residual trapping far from the injection well. Moreover, this maximizes the natural gas storage efficiency between the injection and production wells and reduces the areal extent of the natural gas plume. Proposed U.S. EPA regulations include monitoring pressure and suggest the \"plume\" may be defined by pressure in addition to the CO2 saturated area. For pressure monitoring, it seems that this can only be accomplished by injection zone monitoring wells. For pressure, these wells would not need to be very close to the injection well, compared to monitoring wells intended to measure CO2 saturation via fluid sampling or cased-hole well logs. If pressure monitoring wells become mandated, these wells could be used for managing the CO2 saturation and aquifer pressure distribution. To understand the relevance and effectiveness of producing and injecting brine to improve storage efficiency, direct the plume to specific pore space, and redistribute the pressure, numerical models of CO2 injection into aquifers are used. Simulated cases include various aquifer properties at a single well site and varying the number and location of surrounding wells for plume management. Strategies in terms of completion intervals can be developed to effectively contact more vertical pore space in relatively thicker geologic formations. Inter-site plume management (or cooperative) wells for the purpose of pressure monitoring and plume management may become the responsibility of a consortium of operators or a government entity, not individual sequestration site operators. ?? 2011 Published by Elsevier Ltd.","largerWorkTitle":"Energy Procedia","conferenceTitle":"10th International Conference on Greenhouse Gas Control Technologies","conferenceDate":"19 September 2010 through 23 September 2010","conferenceLocation":"Amsterdam","language":"English","doi":"10.1016/j.egypro.2011.02.372","issn":"18766102","usgsCitation":"Frailey, S., and Finley, R., 2011, CO2 plume management in saline reservoir sequestration, <i>in</i> Energy Procedia, v. 4, Amsterdam, 19 September 2010 through 23 September 2010, p. 4238-4245, https://doi.org/10.1016/j.egypro.2011.02.372.","startPage":"4238","endPage":"4245","numberOfPages":"8","costCenters":[],"links":[{"id":475346,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.egypro.2011.02.372","text":"Publisher Index Page"},{"id":216820,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.egypro.2011.02.372"},{"id":244714,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f2d4e4b0c8380cd4b3ee","contributors":{"authors":[{"text":"Frailey, S.M.","contributorId":93263,"corporation":false,"usgs":true,"family":"Frailey","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":444788,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Finley, R.J.","contributorId":70984,"corporation":false,"usgs":true,"family":"Finley","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":444787,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70034195,"text":"70034195 - 2011 - Microstructure and crystallographic preferred orientation of polycrystalline microgarnet aggregates developed during progressive creep, recovery, and grain boundary sliding","interactions":[],"lastModifiedDate":"2012-03-12T17:21:45","indexId":"70034195","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2468,"text":"Journal of Structural Geology","active":true,"publicationSubtype":{"id":10}},"title":"Microstructure and crystallographic preferred orientation of polycrystalline microgarnet aggregates developed during progressive creep, recovery, and grain boundary sliding","docAbstract":"Optical microscopy, electron probe microanalysis, and electron backscatter diffraction methods have been used to examine a broad range of garnet microstructures within a high strain zone that marks the western margin of a major transpression zone in the southern New England Appalachians. Garnet accommodated variable states of finite strain, expressed as low strain porphyroclasts (Type 1), high strain polycrystalline aggregates (Type 2), and transitional morphologies (Type 3) that range between these end members. Type 1 behaved as rigid porphyroclasts and is characterized by four concentric Ca growth zones. Type 2 help define foliation and lineation, are characterized by three Ca zones, and possess a consistent bulk crystallographic preferred orientation of (100) symmetrical to the tectonic fabric. Type 3 show variable degrees of porphyroclast associated with aggregate, where porphyroclasts display complex compositional zoning that corresponds to lattice distortion, low-angle boundaries, and subgrains, and aggregate CPO mimics porphyroclast orientation. All aggregates accommodated a significant proportion of greenschist facies deformation through grain boundary sliding, grain rotation and impingement, and pressure solution, which lead to a cohesive behavior and overall strain hardening of the aggregates. The characteristic CPO could not have been developed in this manner, and was the result of an older phase of partitioned amphibolite facies dislocation creep, recovery including chemical segregation, and recrystallization of porphyroclasts. This study demonstrates the significance of strain accommodation within garnet and its affect on composition under a range of PT conditions, and emphasizes the importance of utilizing EBSD methods with studies that rely upon a sound understanding of garnet. ?? 2010 Elsevier Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Structural Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jsg.2010.12.009","issn":"01918141","usgsCitation":"Massey, M., Prior, D., and Moecher, D., 2011, Microstructure and crystallographic preferred orientation of polycrystalline microgarnet aggregates developed during progressive creep, recovery, and grain boundary sliding: Journal of Structural Geology, v. 33, no. 4, p. 713-730, https://doi.org/10.1016/j.jsg.2010.12.009.","startPage":"713","endPage":"730","numberOfPages":"18","costCenters":[],"links":[{"id":216819,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jsg.2010.12.009"},{"id":244713,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a56aae4b0c8380cd6d72c","contributors":{"authors":[{"text":"Massey, M.A.","contributorId":84190,"corporation":false,"usgs":true,"family":"Massey","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":444552,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Prior, D.J.","contributorId":65692,"corporation":false,"usgs":true,"family":"Prior","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":444551,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moecher, D.P.","contributorId":106269,"corporation":false,"usgs":true,"family":"Moecher","given":"D.P.","affiliations":[],"preferred":false,"id":444553,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70034206,"text":"70034206 - 2011 - Recovery of coded wire tags at a caspian tern colony in San Francisco Bay: A technique to evaluate impacts of avian predation on juvenile salmonids","interactions":[],"lastModifiedDate":"2017-10-30T12:58:34","indexId":"70034206","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Recovery of coded wire tags at a caspian tern colony in San Francisco Bay: A technique to evaluate impacts of avian predation on juvenile salmonids","docAbstract":"We recovered coded wire tags (CWTs) from a colony of Caspian terns Hydroprogne caspia on Brooks Island in San Francisco Bay, California, to evaluate predation on juvenile salmonids originating from the Sacramento and San Joaquin rivers. Subsamples of colony substrate representing 11.7% of the nesting habitat used by the terns yielded 2,079 salmonid CWTs from fish released and subsequently consumed by terns in 2008. The estimated number of CWTs deposited on the entire tern colony was 40,143 (ranging from 26,763 to 80,288), once adjustments were made to account for tag loss and the total amount of nesting habitat used by terns. Tags ingested by terns and then egested on the colony were undamaged, and the tags' complete numeric codes were still identifiable. The CWTs found on the tern colony indicated that hatchery Chinook salmon Oncorhynchus tshawytscha trucked to and released in San Pablo Bay were significantly more likely to be consumed by Caspian terns than Chinook salmon that migrated in-river to the bay; 99.7% of all tags recovered were from bay-released Chinook salmon. Of the CWTs recovered on the tern colony, 98.0% were from fall-run Chinook salmon, indicating a higher susceptibility to tern predation than for the spring run type. None of the approximately 518,000 wild Chinook salmon that were coded-wire-tagged and released in the basin were recovered on the tern colony, suggesting that the impacts on wild, U.S. Endangered Species Act-listed Chinook salmon populations were minimal in 2008. Overall, we estimate that 0.3% of the approximately 12.3 million coded-wire-tagged Chinook salmon released in the basin in 2008 were subsequently consumed by Caspian terns from the Brooks Island colony. These results indicate that CWTs implanted in juvenile salmon can be recovered from a piscivorous waterbird colony and used to evaluate smolt losses for runs that are tagged. Abstract We recovered coded wire tags (CWTs) from a colony of Caspian terns Hydroprogne caspia on Brooks Island in San Francisco Bay, California, to evaluate predation on juvenile salmonids originating from the Sacramento and San Joaquin rivers. Subsamples of colony substrate representing 11.7% of the nesting habitat used by the terns yielded 2,079 salmonid CWTs from fish released and subsequently consumed by terns in 2008. The estimated number of CWTs deposited on the entire tern colony was 40,143 (ranging from 26,763 to 80,288), once adjustments were made to account for tag loss and the total amount of nesting habitat used by terns. Tags ingested by terns and then egested on the colony were undamaged, and the tags' complete numeric codes were still identifiable. The CWTs found on the tern colony indicated that hatchery Chinook salmon Oncorhynchus tshawytscha trucked to and released in San Pablo Bay were significantly more likely to be consumed by Caspian terns than Chinook salmon that migrated in-river to the bay; 99.7% of all tags recovered were from bay-released Chinook salmon. Of the CWTs recovered on the tern colony, 98.0% were from fall-run Chinook salmon, indicating a higher susceptibility to tern predation than for the spring run type. None of the approximately 518,000 wild Chinook salmon that were coded-wire-tagged and released in the basin were recovered on the tern colony, suggesting that the impacts on wild, U.S. Endangered Species Act-listed Chinook salmon populations were minimal in 2008. Overall, we estimate that 0.3% of the approximately 12.3 million coded-wire-tagged Chinook salmon released in the basin in 2008 were subsequently consumed by Caspian terns from the Brooks Island colony. These results indicate that CWTs implanted in juvenile salmon can be recovered from a piscivorous waterbird colony and used to evaluate smolt losses for runs that are tagged ?? American Fisheries Society 2011.","language":"English","publisher":"Taylor & Francis","doi":"10.1080/02755947.2011.562429","issn":"02755947","usgsCitation":"Evans, A., Roby, D., Collis, K., Cramer, B., Sheggeby, J., Adrean, L., Battaglia, D., and Lyons, D., 2011, Recovery of coded wire tags at a caspian tern colony in San Francisco Bay: A technique to evaluate impacts of avian predation on juvenile salmonids: North American Journal of Fisheries Management, v. 31, no. 1, p. 79-87, https://doi.org/10.1080/02755947.2011.562429.","startPage":"79","endPage":"87","numberOfPages":"9","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true}],"links":[{"id":244873,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-03-09","publicationStatus":"PW","scienceBaseUri":"50e4a331e4b0e8fec6cdb7aa","contributors":{"authors":[{"text":"Evans, A.F.","contributorId":34749,"corporation":false,"usgs":true,"family":"Evans","given":"A.F.","email":"","affiliations":[],"preferred":false,"id":444599,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roby, D.D. 0000-0001-9844-0992","orcid":"https://orcid.org/0000-0001-9844-0992","contributorId":70944,"corporation":false,"usgs":true,"family":"Roby","given":"D.D.","affiliations":[],"preferred":false,"id":444601,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Collis, K.","contributorId":90910,"corporation":false,"usgs":true,"family":"Collis","given":"K.","email":"","affiliations":[],"preferred":false,"id":444603,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cramer, B.M.","contributorId":13066,"corporation":false,"usgs":true,"family":"Cramer","given":"B.M.","email":"","affiliations":[],"preferred":false,"id":444596,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sheggeby, J.A.","contributorId":87004,"corporation":false,"usgs":true,"family":"Sheggeby","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":444602,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Adrean, L.J.","contributorId":58871,"corporation":false,"usgs":true,"family":"Adrean","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":444600,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Battaglia, D.S.","contributorId":28188,"corporation":false,"usgs":true,"family":"Battaglia","given":"D.S.","email":"","affiliations":[],"preferred":false,"id":444598,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Lyons, Donald E.","contributorId":20119,"corporation":false,"usgs":true,"family":"Lyons","given":"Donald E.","affiliations":[],"preferred":false,"id":444597,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70036324,"text":"70036324 - 2011 - Age, composition, and areal distribution of the Pliocene Lawlor Tuff, and three younger Pliocene tuffs, California and Nevada","interactions":[],"lastModifiedDate":"2017-09-01T10:59:16","indexId":"70036324","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1820,"text":"Geosphere","active":true,"publicationSubtype":{"id":10}},"title":"Age, composition, and areal distribution of the Pliocene Lawlor Tuff, and three younger Pliocene tuffs, California and Nevada","docAbstract":"<p id=\"p-1\">The Lawlor Tuff is a widespread dacitic tephra layer produced by Plinian eruptions and ash flows derived from the Sonoma Volcanics, a volcanic area north of San Francisco Bay in the central Coast Ranges of California, USA. The younger, chemically similar Huichica tuff, the tuff of Napa, and the tuff of Monticello Road sequentially overlie the Lawlor Tuff, and were erupted from the same volcanic field. We obtain new laser-fusion and incremental-heating<span>&nbsp;</span><sup>40</sup>Ar/<sup>39</sup>Ar isochron and plateau ages of 4.834 ± 0.011, 4.76 ± 0.03, ≤4.70 ± 0.03, and 4.50 ± 0.02 Ma (1 sigma), respectively, for these layers. The ages are concordant with their stratigraphic positions and are significantly older than those determined previously by the K-Ar method on the same tuffs in previous studies.</p><p id=\"p-2\">Based on offsets of the ash-flow phase of the Lawlor Tuff by strands of the eastern San Andreas fault system within the northeastern San Francisco Bay area, total offset east of the Rodgers Creek–Healdsburg fault is estimated to be in the range of 36 to 56 km, with corresponding displacement rates between 8.4 and 11.6 mm/yr over the past ∼4.83 Ma.</p><p id=\"p-3\">We identify these tuffs by their chemical, petrographic, and magnetic characteristics over a large area in California and western Nevada, and at a number of new localities. They are thus unique chronostratigraphic markers that allow correlation of marine and terrestrial sedimentary and volcanic strata of early Pliocene age for their region of fallout. The tuff of Monticello Road is identified only near its eruptive source.</p>","language":"English","publisher":"The Geological Society of America","doi":"10.1130/GES00609.1","issn":"1553040X","usgsCitation":"Sarna-Wojcicki, A.M., Deino, A., Fleck, R.J., McLaughlin, R.J., Wagner, D., Wan, E., Wahl, D.B., Hillhouse, J.W., and Perkins, M., 2011, Age, composition, and areal distribution of the Pliocene Lawlor Tuff, and three younger Pliocene tuffs, California and Nevada: Geosphere, v. 7, no. 3, p. 599-628, https://doi.org/10.1130/GES00609.1.","productDescription":"30 p.","startPage":"599","endPage":"628","numberOfPages":"30","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-021607","costCenters":[{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":488018,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1130/ges00609.1","text":"Publisher Index Page"},{"id":246372,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218371,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/GES00609.1"}],"country":"United States","state":"California, Nevada","volume":"7","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e8f4e4b0c8380cd47fe2","contributors":{"authors":[{"text":"Sarna-Wojcicki, Andrei M. 0000-0002-0244-9149 asarna@usgs.gov","orcid":"https://orcid.org/0000-0002-0244-9149","contributorId":1046,"corporation":false,"usgs":true,"family":"Sarna-Wojcicki","given":"Andrei","email":"asarna@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":455528,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Deino, Alan L.","contributorId":196103,"corporation":false,"usgs":false,"family":"Deino","given":"Alan L.","affiliations":[],"preferred":false,"id":455526,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fleck, Robert J. 0000-0002-3149-8249 fleck@usgs.gov","orcid":"https://orcid.org/0000-0002-3149-8249","contributorId":1048,"corporation":false,"usgs":true,"family":"Fleck","given":"Robert","email":"fleck@usgs.gov","middleInitial":"J.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":455524,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McLaughlin, Robert J. 0000-0002-4390-2288 rjmcl@usgs.gov","orcid":"https://orcid.org/0000-0002-4390-2288","contributorId":1428,"corporation":false,"usgs":true,"family":"McLaughlin","given":"Robert","email":"rjmcl@usgs.gov","middleInitial":"J.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":455529,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wagner, David","contributorId":196135,"corporation":false,"usgs":false,"family":"Wagner","given":"David","affiliations":[],"preferred":false,"id":455527,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Wan, Elmira 0000-0002-9255-112X ewan@usgs.gov","orcid":"https://orcid.org/0000-0002-9255-112X","contributorId":3434,"corporation":false,"usgs":true,"family":"Wan","given":"Elmira","email":"ewan@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":455522,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wahl, David B. 0000-0002-0451-3554 dwahl@usgs.gov","orcid":"https://orcid.org/0000-0002-0451-3554","contributorId":3433,"corporation":false,"usgs":true,"family":"Wahl","given":"David","email":"dwahl@usgs.gov","middleInitial":"B.","affiliations":[{"id":24693,"text":"Climate Research and Development","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":455521,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Hillhouse, John W. 0000-0002-1371-4622 jhillhouse@usgs.gov","orcid":"https://orcid.org/0000-0002-1371-4622","contributorId":2618,"corporation":false,"usgs":true,"family":"Hillhouse","given":"John","email":"jhillhouse@usgs.gov","middleInitial":"W.","affiliations":[],"preferred":true,"id":455525,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Perkins, Michael","contributorId":10304,"corporation":false,"usgs":true,"family":"Perkins","given":"Michael","affiliations":[],"preferred":false,"id":455523,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70033994,"text":"70033994 - 2011 - Sulfate threshold target to control methylmercury levels in wetland ecosystems","interactions":[],"lastModifiedDate":"2012-03-12T17:21:44","indexId":"70033994","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Sulfate threshold target to control methylmercury levels in wetland ecosystems","docAbstract":"Sulfate contamination has a significant environmental implication through the stimulation of toxic hydrogen sulfide and methylmercury (MeHg) production. High levels of MeHg are a serious problem in many wetland ecosystems worldwide. In the Florida Everglades, it has been demonstrated that increasing MeHg occurrence is due to a sulfate contamination problem. A promising strategy of lowering the MeHg occurrence is to reduce the amount of sulfate entering the ecosystem. High surface water sulfate concentrations in the Everglades are mainly due to discharges from the Everglades Agricultural Area (EAA) canals. Water and total sulfur mass balances indicated that total sulfur released by soil oxidation, Lake Okeechobee and agricultural application were the major sources contributing 49,169, 35,217 and 11,775mtonsyear-1, respectively. Total sulfur loads from groundwater, levees, and atmospheric deposition contributed to a lesser extent: 4055; 5858 and 4229mtonsyear-1, respectively. Total sulfur leaving the EAA into Water Conservation Areas (WCAs) through canal discharge was estimated at 116,360mtonsyear-1, and total sulfur removed by sugarcane harvest accounted for 23,182mtonsyear-1. Furthermore, a rise in the mineral content and pH of the EAA soil over time, suggested that the current rates of sulfur application would increase as the buffer capacity of the soil increases. Therefore, a site specific numeric criterion for sulfate of 1mgL-1 was recommended for the protection of the Everglades; above this level, mercury methylation is enhanced. In parallel, sulfide concentrations in the EAA exceeded the 2??gL-1 criterion for surface water already established by the U.S. Environmental Protection Agency (EPA). ?? 2011 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Science of the Total Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.scitotenv.2011.02.030","issn":"00489697","usgsCitation":"Corrales, J., Naja, G., Dziuba, C., Rivero, R., and Orem, W., 2011, Sulfate threshold target to control methylmercury levels in wetland ecosystems: Science of the Total Environment, v. 409, no. 11, p. 2156-2162, https://doi.org/10.1016/j.scitotenv.2011.02.030.","startPage":"2156","endPage":"2162","numberOfPages":"7","costCenters":[],"links":[{"id":216747,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.scitotenv.2011.02.030"},{"id":244633,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"409","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9dc2e4b08c986b31da6b","contributors":{"authors":[{"text":"Corrales, J.","contributorId":101113,"corporation":false,"usgs":true,"family":"Corrales","given":"J.","email":"","affiliations":[],"preferred":false,"id":443557,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Naja, G.M.","contributorId":54039,"corporation":false,"usgs":true,"family":"Naja","given":"G.M.","email":"","affiliations":[],"preferred":false,"id":443555,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dziuba, C.","contributorId":32756,"corporation":false,"usgs":true,"family":"Dziuba","given":"C.","email":"","affiliations":[],"preferred":false,"id":443553,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rivero, R.G.","contributorId":49209,"corporation":false,"usgs":true,"family":"Rivero","given":"R.G.","email":"","affiliations":[],"preferred":false,"id":443554,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Orem, W. 0000-0003-4990-0539","orcid":"https://orcid.org/0000-0003-4990-0539","contributorId":87335,"corporation":false,"usgs":true,"family":"Orem","given":"W.","affiliations":[],"preferred":false,"id":443556,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
]}