{"pageNumber":"836","pageRowStart":"20875","pageSize":"25","recordCount":46883,"records":[{"id":70031987,"text":"70031987 - 2008 - Assessment of crop growth and soil water modules in SWAT2000 using extensive field experiment data in an irrigation district of the Yellow River Basin","interactions":[],"lastModifiedDate":"2012-03-12T17:21:28","indexId":"70031987","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Assessment of crop growth and soil water modules in SWAT2000 using extensive field experiment data in an irrigation district of the Yellow River Basin","docAbstract":"SWAT, a physically-based, hydrological model simulates crop growth, soil water and groundwater movement, and transport of sediment and nutrients at both the process and watershed scales. While the different versions of SWAT have been widely used throughout the world for agricultural and water resources applications, little has been done to test the performance, variability, and transferability of the parameters in the crop growth, soil water, and groundwater modules in an integrated way with multiple sets of field experimental data at the process scale. Using an multiple years of field experimental data of winter wheat (Triticum aestivum L.) in the irrigation district of the Yellow River Basin, this paper assesses the performance of the plant-soil-groundwater modules and the variability and transferability of SWAT2000. Comparison of the simulated results by SWAT to the observations showed that SWAT performed quite unsatisfactorily in LAI predictions during the senescence stage, in yield predictions, and in soil-water estimation under dry soil-profile conditions. The unsatisfactory performance in LAI prediction might be attributed to over-simplified senescence modeling; in yield prediction to the improper computation of the harvest index; and in soil water under dry conditions to the exclusion of groundwater evaporation from the soil water balance in SWAT. In this paper, improvements in crop growth, soil water, and groundwater modules in SWAT were implemented. The saturated soil profile was coupled to the oscillating groundwater table. A variable evaporation coefficient taking into account soil water deficit index, groundwater depth, and crop root depth was used to replace the fixed coefficient in computing groundwater evaporation. The soil water balance included the groundwater evaporation. The modifications improved simulations of crop evapotranspiration and biomass as well as soil water dynamics under dry soil-profile conditions. The evaluation shows that the crop growth and soil water components of SWAT could be further refined to better simulate the hydrology of agricultural watersheds. ?? 2008 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2008.01.003","issn":"00221694","usgsCitation":"Luo, Y., He, C., Sophocleous, M., Yin, Z., Hongrui, R., and Ouyang, Z., 2008, Assessment of crop growth and soil water modules in SWAT2000 using extensive field experiment data in an irrigation district of the Yellow River Basin: Journal of Hydrology, v. 352, no. 1-2, p. 139-156, https://doi.org/10.1016/j.jhydrol.2008.01.003.","startPage":"139","endPage":"156","numberOfPages":"18","costCenters":[],"links":[{"id":242495,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214745,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2008.01.003"}],"volume":"352","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ee2ae4b0c8380cd49bd3","contributors":{"authors":[{"text":"Luo, Y.","contributorId":28417,"corporation":false,"usgs":true,"family":"Luo","given":"Y.","email":"","affiliations":[],"preferred":false,"id":434006,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"He, C.","contributorId":76951,"corporation":false,"usgs":true,"family":"He","given":"C.","email":"","affiliations":[],"preferred":false,"id":434009,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sophocleous, M.","contributorId":13373,"corporation":false,"usgs":true,"family":"Sophocleous","given":"M.","email":"","affiliations":[],"preferred":false,"id":434005,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Yin, Z.","contributorId":108077,"corporation":false,"usgs":true,"family":"Yin","given":"Z.","email":"","affiliations":[],"preferred":false,"id":434010,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hongrui, R.","contributorId":34340,"corporation":false,"usgs":true,"family":"Hongrui","given":"R.","email":"","affiliations":[],"preferred":false,"id":434008,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ouyang, Z.","contributorId":28815,"corporation":false,"usgs":true,"family":"Ouyang","given":"Z.","email":"","affiliations":[],"preferred":false,"id":434007,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70033462,"text":"70033462 - 2008 - Differences in evaporation between a floating pan and class a pan on land","interactions":[],"lastModifiedDate":"2018-10-17T10:54:37","indexId":"70033462","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"Differences in evaporation between a floating pan and class a pan on land","docAbstract":"<p><span>Research was conducted to develop a method for obtaining floating pan evaporation rates in a small (less than 10,000 m</span><sup>2</sup><span>) wetland, lagoon, or pond. Floating pan and land pan evaporation data were collected from March 1 to August 31, 2005, at a small natural wetland located in the alluvium of the Canadian River near Norman, Oklahoma, at the U.S. Geological Survey Norman Landfill Toxic Substances Hydrology Research Site. Floating pan evaporation rates were compared with evaporation rates from a nearby standard Class A evaporation pan on land. Floating pan evaporation rates were significantly less than land pan evaporation rates for the entire period and on a monthly basis. Results indicated that the use of a floating evaporation pan in a small free‐water surface better simulates actual physical conditions on the water surface that control evaporation. Floating pan to land pan ratios were 0.82 for March, 0.87 for April, 0.85 for May, 0.85 for June, 0.79 for July, and 0.69 for August.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1752-1688.2008.00181.x","issn":"1093474X","usgsCitation":"Masoner, J., Stannard, D., and Christenson, S.C., 2008, Differences in evaporation between a floating pan and class a pan on land: Journal of the American Water Resources Association, v. 44, no. 3, p. 552-561, https://doi.org/10.1111/j.1752-1688.2008.00181.x.","productDescription":"10 p.","startPage":"552","endPage":"561","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":476745,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1752-1688.2008.00181.x","text":"Publisher Index Page"},{"id":241977,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214272,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.2008.00181.x"}],"volume":"44","issue":"3","noUsgsAuthors":false,"publicationDate":"2008-03-28","publicationStatus":"PW","scienceBaseUri":"505a00eee4b0c8380cd4f9cf","contributors":{"authors":[{"text":"Masoner, J.R.","contributorId":15690,"corporation":false,"usgs":true,"family":"Masoner","given":"J.R.","affiliations":[],"preferred":false,"id":440968,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stannard, D.I.","contributorId":100884,"corporation":false,"usgs":true,"family":"Stannard","given":"D.I.","email":"","affiliations":[],"preferred":false,"id":440970,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Christenson, S. C.","contributorId":98320,"corporation":false,"usgs":true,"family":"Christenson","given":"S.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":440969,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70032868,"text":"70032868 - 2008 - Micropaleontologic record of late Pliocene and Quaternary paleoenvironments in the northern Albemarle Embayment, North Carolina, U.S.A.","interactions":[],"lastModifiedDate":"2019-12-30T09:01:52","indexId":"70032868","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"Micropaleontologic record of late Pliocene and Quaternary paleoenvironments in the northern Albemarle Embayment, North Carolina, U.S.A.","docAbstract":"<p>Micropaleontological data provide a strong actualistic basis for detailed interpretations of Quaternary paleoenvironmental change. The 90&nbsp;m-thick Quaternary record of the Albemarle Embayment in the mid-Atlantic coastal plain of the USA provides an excellent opportunity to use such an approach in a region where the details of Quaternary environmental change are poorly known.</p><p>The foraminiferal record in nine cores from the northern Outer Banks, east of Albemarle Sound, North Carolina, indicates the deposition of subhorizontal, mostly open-marine early to late Pleistocene units unconformably upon a basement of late Pliocene reduced-oxygen, fine-grained, shelf-basin deposits. Pollen data record several warm–cool fluctuations within the early to mid-Pleistocene deposits. Diatom data indicate that some fresh and brackish-water units occur within the generally open-marine Pleistocene succession.</p><p>A channel cut by the paleo-Roanoke River during the last glacial sea-level lowstand occurs in the northern part of the study area. Pollen indicates that the basal fluvial valley fill accumulated in cooler than modern climate conditions in the latest Pleistocene. Overlying silts and muds accumulated under cool climatic, estuarine conditions according to diatom and pollen data. Radiocarbon ages from the estuarine deposits indicate that the bulk of these sediments accumulated during the latest Pleistocene.</p><p>The estuarine channel-fill deposits are overlain by Holocene open-marine sands deposited as the rising sea transgressed into the estuary approximately 8.5 to 9.0&nbsp;kyr BP. Within the barrier island drill cores of this study, fully marine sedimentation occurred throughout the Holocene. However, immediately west of the present barrier island, mid- to late Holocene estuarine deposits underlie the modern Albemarle Sound. The islands that currently form a continuous barrier across the mouth of Albemarle Sound have a complex history of Holocene construction and destruction and large portions of them may be less than 3&nbsp;kyr old. The barrier island sands overlie open-marine sands of Colington Shoal in the north and to the south overlie fluvial and marine sand filling paleo-Roanoke tributary valleys.</p><p>The Pleistocene sediments underlying the northern Outer Banks study area are mainly of open inner to mid-shelf origin. If, as is likely, sea level continues to rise, a return to such environmental conditions is likely in the near future.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.palaeo.2008.03.012","issn":"00310182","usgsCitation":"Culver, S., Farrell, K., Mallinson, D.J., Horton, B.P., Willard, D., Thieler, E., Riggs, S., Snyder, S., Wehmiller, J., Bernhardt, C., and Hillier, C., 2008, Micropaleontologic record of late Pliocene and Quaternary paleoenvironments in the northern Albemarle Embayment, North Carolina, U.S.A.: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 264, no. 1-2, p. 54-77, https://doi.org/10.1016/j.palaeo.2008.03.012.","productDescription":"24 p.","startPage":"54","endPage":"77","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":241502,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North Carolina","otherGeospatial":"Albemarle Embayment","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -75.99105834960938,\n              35.81224507919506\n            ],\n            [\n              -75.5804443359375,\n              35.81224507919506\n            ],\n            [\n              -75.5804443359375,\n              36.28634929429456\n            ],\n            [\n              -75.99105834960938,\n              36.28634929429456\n            ],\n            [\n              -75.99105834960938,\n              35.81224507919506\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"264","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a568ee4b0c8380cd6d68a","contributors":{"authors":[{"text":"Culver, S.J.","contributorId":53970,"corporation":false,"usgs":true,"family":"Culver","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":438297,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Farrell, K.M.","contributorId":106573,"corporation":false,"usgs":true,"family":"Farrell","given":"K.M.","email":"","affiliations":[],"preferred":false,"id":438304,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mallinson, D. J.","contributorId":71745,"corporation":false,"usgs":true,"family":"Mallinson","given":"D.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":438299,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Horton, B. P.","contributorId":96816,"corporation":false,"usgs":false,"family":"Horton","given":"B.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":438303,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Willard, Debra  A. 0000-0003-4878-0942","orcid":"https://orcid.org/0000-0003-4878-0942","contributorId":85982,"corporation":false,"usgs":true,"family":"Willard","given":"Debra  A.","affiliations":[],"preferred":false,"id":438300,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Thieler, E.R. 0000-0003-4311-9717","orcid":"https://orcid.org/0000-0003-4311-9717","contributorId":93082,"corporation":false,"usgs":true,"family":"Thieler","given":"E.R.","affiliations":[],"preferred":false,"id":438302,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Riggs, S.R.","contributorId":29807,"corporation":false,"usgs":true,"family":"Riggs","given":"S.R.","email":"","affiliations":[],"preferred":false,"id":438295,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Snyder, S.W.","contributorId":92875,"corporation":false,"usgs":true,"family":"Snyder","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":438301,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Wehmiller, J.F.","contributorId":37891,"corporation":false,"usgs":false,"family":"Wehmiller","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":438296,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Bernhardt, C.E.","contributorId":65554,"corporation":false,"usgs":true,"family":"Bernhardt","given":"C.E.","email":"","affiliations":[],"preferred":false,"id":438298,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Hillier, C.","contributorId":11012,"corporation":false,"usgs":true,"family":"Hillier","given":"C.","email":"","affiliations":[],"preferred":false,"id":438294,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}}
,{"id":70031822,"text":"70031822 - 2008 - Six years of land subsidence in shanghai revealed by JERS-1 SAR data","interactions":[],"lastModifiedDate":"2012-03-12T17:21:26","indexId":"70031822","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Six years of land subsidence in shanghai revealed by JERS-1 SAR data","docAbstract":"Differential interferometric synthetic aperture radar (SAR) (DInSAR) has proven to be very useful in mapping and monitoring land subsidence in many regions of the world. Shanghai, China's largest city, is one of such areas suffering from land subsidence as a result of severe withdrawal of groundwater for different usages. DInSAR application in Shanghai with the C-band European Remote Sensing 1 & 2 (ERS-1/2) SAR data has been difficult mainly due to the problem of decorrelation of InSAR pairs with temporal baselines larger than 10 months. To overcome the coherence loss of C-band InSAR data, we used eight L-band Japanese Earth Resource Satellite (JERS-1) SAR data acquired during 2 October 1992 to 15 July 1998 to study land subsidence phenomenon in Shanghai. Three of the images were used to produce two separate digital elevation models (DEMs) of the study area to remove topographic fringes from the interferograms used for subsidence mapping. Six interferograms were used to generate 2 different time series of deformation maps over Shanghai. The cumulative subsidence map generated from each of the time series is in agreement with the land subsidence measurements of Shanghai city from 1990-1998, produced from other survey methods. ?? 2007 IEEE.","largerWorkTitle":"International Geoscience and Remote Sensing Symposium (IGARSS)","conferenceTitle":"2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007","conferenceDate":"23 June 2007 through 28 June 2007","conferenceLocation":"Barcelona","language":"English","doi":"10.1109/IGARSS.2007.4423246","isbn":"1424412129; 9781424412129","usgsCitation":"Damoah-Afari, P., Ding, X., Li, Z., Lu, Z., and Omura, M., 2008, Six years of land subsidence in shanghai revealed by JERS-1 SAR data, <i>in</i> International Geoscience and Remote Sensing Symposium (IGARSS), Barcelona, 23 June 2007 through 28 June 2007, p. 2093-2097, https://doi.org/10.1109/IGARSS.2007.4423246.","startPage":"2093","endPage":"2097","numberOfPages":"5","costCenters":[],"links":[{"id":214862,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/IGARSS.2007.4423246"},{"id":242618,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9107e4b08c986b319731","contributors":{"authors":[{"text":"Damoah-Afari, P.","contributorId":55228,"corporation":false,"usgs":true,"family":"Damoah-Afari","given":"P.","email":"","affiliations":[],"preferred":false,"id":433288,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ding, X.-L.","contributorId":33934,"corporation":false,"usgs":true,"family":"Ding","given":"X.-L.","email":"","affiliations":[],"preferred":false,"id":433286,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Li, Z.","contributorId":29160,"corporation":false,"usgs":true,"family":"Li","given":"Z.","affiliations":[],"preferred":false,"id":433285,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lu, Z.","contributorId":106241,"corporation":false,"usgs":true,"family":"Lu","given":"Z.","affiliations":[],"preferred":false,"id":433289,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Omura, M.","contributorId":43994,"corporation":false,"usgs":true,"family":"Omura","given":"M.","email":"","affiliations":[],"preferred":false,"id":433287,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70032186,"text":"70032186 - 2008 - Seasonal changes in submarine groundwater discharge to coastal salt ponds estimated using 226Ra and 228Ra as tracers","interactions":[],"lastModifiedDate":"2012-03-12T17:21:25","indexId":"70032186","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2662,"text":"Marine Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Seasonal changes in submarine groundwater discharge to coastal salt ponds estimated using 226Ra and 228Ra as tracers","docAbstract":"Submarine groundwater discharge (SGD) to coastal southern Rhode Island was estimated from measurements of the naturally-occurring radioisotopes 226Ra (t1/2 = 1600??y) and 228Ra (t1/2 = 5.75??y). Surface water and porewater samples were collected quarterly in Winnapaug, Quonochontaug, Ninigret, Green Hill, and Pt. Judith-Potter Ponds, as well as nearly monthly in the surface water of Rhode Island Sound, from January 2002 to August 2003; additional porewater samples were collected in August 2005. Surface water activities ranged from 12-83??dpm 100??L- 1 (60??dpm = 1??Bq) and 21-256??dpm 100??L- 1 for 226Ra and 228Ra, respectively. Porewater 226Ra activities ranged from 16-736??dpm 100??L- 1 (2002-2003) and 95-815??dpm 100??L- 1 (2005), while porewater 228Ra activities ranged from 23-1265??dpm 100??L- 1. Combining these data with a simple box model provided average 226Ra-based submarine groundwater fluxes ranging from 11-159??L m- 2 d- 1 and average 228Ra-derived fluxes of 15-259??L m- 2 d- 1. Seasonal changes in Ra-derived SGD were apparent in all ponds as well as between ponds, with SGD values of 30-472??L m- 2 d- 1 (Winnapaug Pond), 6-20??L m- 2 d- 1 (Quonochontaug Pond), 36-273??L m- 2 d- 1 (Ninigret Pond), 29-76??L m- 2 d- 1 (Green Hill Pond), and 19-83??L m- 2 d- 1 (Pt. Judith-Potter Pond). These Ra-derived fluxes are up to two orders of magnitude higher than results predicted by a numerical model of groundwater flow, estimates of aquifer recharge for the study period, and values published in previous Ra-based SGD studies in Rhode Island. This disparity may result from differences in the type of flow (recirculated seawater versus fresh groundwater) determined using each technique, as well as variability in porewater Ra activity. ?? 2007 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.marchem.2007.08.001","issn":"03044203","usgsCitation":"Hougham, A., Moran, S., Masterson, J., and Kelly, R., 2008, Seasonal changes in submarine groundwater discharge to coastal salt ponds estimated using 226Ra and 228Ra as tracers: Marine Chemistry, v. 109, no. 3-4, p. 268-278, https://doi.org/10.1016/j.marchem.2007.08.001.","startPage":"268","endPage":"278","numberOfPages":"11","costCenters":[],"links":[{"id":214725,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marchem.2007.08.001"},{"id":242475,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"109","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8885e4b08c986b3169f7","contributors":{"authors":[{"text":"Hougham, A.L.","contributorId":61254,"corporation":false,"usgs":true,"family":"Hougham","given":"A.L.","affiliations":[],"preferred":false,"id":434937,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moran, S.B.","contributorId":7928,"corporation":false,"usgs":true,"family":"Moran","given":"S.B.","email":"","affiliations":[],"preferred":false,"id":434936,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Masterson, John P. 0000-0003-3202-4413","orcid":"https://orcid.org/0000-0003-3202-4413","contributorId":102516,"corporation":false,"usgs":true,"family":"Masterson","given":"John P.","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":false,"id":434939,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kelly, R.P.","contributorId":80502,"corporation":false,"usgs":true,"family":"Kelly","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":434938,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70032980,"text":"70032980 - 2008 - A fully distributed implementation of mean annual streamflow regional regression equations","interactions":[],"lastModifiedDate":"2017-04-03T12:49:45","indexId":"70032980","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"A fully distributed implementation of mean annual streamflow regional regression equations","docAbstract":"<p><span>Estimates of mean annual streamflow are needed for a variety of hydrologic assessments. Away from gage locations, regional regression equations that are a function of upstream area, precipitation, and temperature are commonly used. Geographic information systems technology has facilitated their use for projects, but traditional approaches using the polygon overlay operator have been too inefficient for national scale applications. As an alternative, the Elevation Derivatives for National Applications (EDNA) database was used as a framework for a fully distributed implementation of mean annual streamflow regional regression equations. The raster “flow accumulation” operator was used to efficiently achieve spatially continuous parameterization of the equations for every 30&nbsp;m grid cell of the conterminous United States (U.S.). Results were confirmed by comparing with measured flows at stations of the Hydro-Climatic Data Network, and their applications value demonstrated in the development of a national geospatial hydropower assessment. Interactive tools at the EDNA website make possible the fast and efficient query of mean annual streamflow for any location in the conterminous U.S., providing a valuable complement to other national initiatives (StreamStats and the National Hydrography Dataset Plus).</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1752-1688.2008.00258.x","issn":"10934","usgsCitation":"Verdin, K., and Worstell, B., 2008, A fully distributed implementation of mean annual streamflow regional regression equations: Journal of the American Water Resources Association, v. 44, no. 6, p. 1537-1547, https://doi.org/10.1111/j.1752-1688.2008.00258.x.","productDescription":"11 p.","startPage":"1537","endPage":"1547","numberOfPages":"11","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":240708,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213116,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.2008.00258.x"}],"volume":"44","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e3e4e4b0c8380cd462aa","contributors":{"authors":[{"text":"Verdin, K.L.","contributorId":66438,"corporation":false,"usgs":true,"family":"Verdin","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":438816,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Worstell, B. 0000-0001-8927-3336","orcid":"https://orcid.org/0000-0001-8927-3336","contributorId":92059,"corporation":false,"usgs":true,"family":"Worstell","given":"B.","affiliations":[],"preferred":false,"id":438817,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70032200,"text":"70032200 - 2008 - Transport of elemental mercury in the unsaturated zone from a waste disposal site in an arid region","interactions":[],"lastModifiedDate":"2018-10-22T08:06:22","indexId":"70032200","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","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":"Transport of elemental mercury in the unsaturated zone from a waste disposal site in an arid region","docAbstract":"<p><span>Mercury contained in buried landfill waste may be released via upward emission to the atmosphere or downward leaching to groundwater. Data from the US Geological Survey’s Amargosa Desert Research Site (ADRS) in arid southwestern Nevada reveal another potential pathway of Hg release: long-distance (10</span><sup>2</sup><span>&nbsp;</span><span>m) lateral migration of elemental Hg (Hg</span><sup>0</sup><span>) through the unsaturated zone. Gas collected from multiple depths from two instrumented boreholes that sample the entire 110-m unsaturated zone thickness and are located 100 and 160</span><span>&nbsp;</span><span>m away from the closest waste burial trench exhibit gaseous Hg concentrations of up to 33 and 11</span><span>&nbsp;</span><span>ng</span><span>&nbsp;</span><span>m</span><sup>−3</sup><span>, respectively. The vertical distribution of gaseous Hg in the borehole closest to the disposal site shows distinct subsurface peaks in concentration at depths of 1.5 and 24</span><span>&nbsp;</span><span>m that cannot be explained by radial diffusive transport through a heterogeneous layered unsaturated zone. The inability of current models to explain gaseous Hg distribution at the ADRS highlights the need to advance the understanding of gas-phase contaminant transport in unsaturated zones to attain a comprehensive model of landfill Hg release.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.apgeochem.2007.12.014","usgsCitation":"Walvoord, M.A., Andraski, B.J., Krabbenhoft, D., and Striegl, R.G., 2008, Transport of elemental mercury in the unsaturated zone from a waste disposal site in an arid region: Applied Geochemistry, v. 23, no. 3, p. 572-583, https://doi.org/10.1016/j.apgeochem.2007.12.014.","productDescription":"12 p.","startPage":"572","endPage":"583","costCenters":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":242702,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb74fe4b08c986b3271af","contributors":{"authors":[{"text":"Walvoord, Michelle Ann 0000-0003-4269-8366 walvoord@usgs.gov","orcid":"https://orcid.org/0000-0003-4269-8366","contributorId":147211,"corporation":false,"usgs":true,"family":"Walvoord","given":"Michelle","email":"walvoord@usgs.gov","middleInitial":"Ann","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":435009,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Andraski, Brian J. 0000-0002-2086-0417 andraski@usgs.gov","orcid":"https://orcid.org/0000-0002-2086-0417","contributorId":168800,"corporation":false,"usgs":true,"family":"Andraski","given":"Brian","email":"andraski@usgs.gov","middleInitial":"J.","affiliations":[{"id":38175,"text":"Toxics Substances Hydrology Program","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"preferred":false,"id":435007,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Krabbenhoft, D. P. 0000-0003-1964-5020","orcid":"https://orcid.org/0000-0003-1964-5020","contributorId":90765,"corporation":false,"usgs":true,"family":"Krabbenhoft","given":"D. P.","affiliations":[],"preferred":false,"id":435008,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Striegl, Robert G. 0000-0002-8251-4659 rstriegl@usgs.gov","orcid":"https://orcid.org/0000-0002-8251-4659","contributorId":1630,"corporation":false,"usgs":true,"family":"Striegl","given":"Robert","email":"rstriegl@usgs.gov","middleInitial":"G.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true},{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true}],"preferred":false,"id":435006,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030237,"text":"70030237 - 2008 - Overcompensatory response of a smallmouth bass (Micropterus dolomieu) population to harvest: Release from competition?","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030237","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1169,"text":"Canadian Journal of Fisheries and Aquatic Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Overcompensatory response of a smallmouth bass (Micropterus dolomieu) population to harvest: Release from competition?","docAbstract":"An intensive seven-year removal of adult, juvenile, and young-of-the-year smallmouth bass (Micropterus dolomieu) from a north temperate lake (Little Moose Lake, New York, USA) resulted in an increase in overall population abundance, primarily due to increased abundance of immature individuals. We developed a density-dependent, stage-structured model to examine conditions under which population control through harvest could result in the increase of a targeted species. Parameter values were derived from a 54-year data set collected from another north temperate lake (Lake Opeongo, Ontario, Canada) smallmouth bass population. Sensitivity analyses identified the demographic conditions that could lead to increased abundance in response to harvest. An increase in population abundance with harvest was most likely to occur when either (i) per capita recruitment at low levels of spawner abundance was large, juvenile survivorship was high, and maturation of age-4 and older juveniles was moderately high or (ii) per capita recruitment at low levels of spawner abundance was slightly lower, yet the maturation rate of age-3 juveniles and adult survivorship were high. Our modeling results together with empirical evidence further demonstrate the importance of overcompensation as a substantial factor to consider in efforts to regulate population abundance through harvest. ?? 2008 NRC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Fisheries and Aquatic Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/F08-133","issn":"07066","usgsCitation":"Zipkin, E., Sullivan, P., Cooch, E., Kraft, C., Shuter, B., and Weidel, B., 2008, Overcompensatory response of a smallmouth bass (Micropterus dolomieu) population to harvest: Release from competition?: Canadian Journal of Fisheries and Aquatic Sciences, v. 65, no. 10, p. 2279-2292, https://doi.org/10.1139/F08-133.","startPage":"2279","endPage":"2292","numberOfPages":"14","costCenters":[],"links":[{"id":239087,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211739,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/F08-133"}],"volume":"65","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a71d4e4b0c8380cd767a7","contributors":{"authors":[{"text":"Zipkin, E.F.","contributorId":52790,"corporation":false,"usgs":true,"family":"Zipkin","given":"E.F.","affiliations":[],"preferred":false,"id":426249,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sullivan, P.J.","contributorId":38762,"corporation":false,"usgs":true,"family":"Sullivan","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":426246,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cooch, E.G.","contributorId":40932,"corporation":false,"usgs":true,"family":"Cooch","given":"E.G.","email":"","affiliations":[],"preferred":false,"id":426247,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kraft, C.E.","contributorId":80610,"corporation":false,"usgs":true,"family":"Kraft","given":"C.E.","email":"","affiliations":[],"preferred":false,"id":426250,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Shuter, B.J.","contributorId":6661,"corporation":false,"usgs":true,"family":"Shuter","given":"B.J.","email":"","affiliations":[],"preferred":false,"id":426245,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Weidel, B.C.","contributorId":47978,"corporation":false,"usgs":true,"family":"Weidel","given":"B.C.","affiliations":[],"preferred":false,"id":426248,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70031821,"text":"70031821 - 2008 - Detection of foliage-obscured vehicle using a multiwavelength polarimetric lidar","interactions":[],"lastModifiedDate":"2022-05-18T14:49:19.132723","indexId":"70031821","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Detection of foliage-obscured vehicle using a multiwavelength polarimetric lidar","docAbstract":"<p>Foliage obscured man-made targets detection and identification is of great interest to many applications. In this paper, the backscattered laser signals from a multiwavelength polarimetric lidar were used to detect a vehicle hidden inside a vegetated area. The polarimetric reflectance data from the lidar at two separate laser wavelengths at 1064 nm and 532 nm revealed distinct target characteristics from both the vehicle and the vegetation. The results from this case study demonstrated the validity of the proposed lidar detection technique. Furthermore, the results could potentially lead to a lidar detection and identification technique for a wide variety of foliage-obscured man-made targets under various application scenarios.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"International Geoscience and Remote Sensing Symposium (IGARSS)","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007","conferenceDate":"Jun 23-28, 2007","conferenceLocation":"Barcelona, Spain","language":"English","publisher":"IEEE","doi":"10.1109/IGARSS.2007.4423352","usgsCitation":"Tan, S., Stoker, J., and Greenlee, S., 2008, Detection of foliage-obscured vehicle using a multiwavelength polarimetric lidar, <i>in</i> International Geoscience and Remote Sensing Symposium (IGARSS), Barcelona, Spain, Jun 23-28, 2007, p. 2503-2506, https://doi.org/10.1109/IGARSS.2007.4423352.","productDescription":"4 p.","startPage":"2503","endPage":"2506","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":242585,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ff74e4b0c8380cd4f1d0","contributors":{"authors":[{"text":"Tan, S.","contributorId":53501,"corporation":false,"usgs":true,"family":"Tan","given":"S.","email":"","affiliations":[],"preferred":false,"id":433283,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stoker, J. 0000-0003-2455-0931","orcid":"https://orcid.org/0000-0003-2455-0931","contributorId":102703,"corporation":false,"usgs":true,"family":"Stoker","given":"J.","affiliations":[],"preferred":false,"id":433284,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Greenlee, S.","contributorId":44371,"corporation":false,"usgs":true,"family":"Greenlee","given":"S.","email":"","affiliations":[],"preferred":false,"id":433282,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70032854,"text":"70032854 - 2008 - Demography and movement in a relocated population of Oregon Spotted Frogs (Rana pretiosa): Influence of season and gender","interactions":[{"subject":{"id":80161,"text":"ofr20071016 - 2007 - Oregon Spotted Frog (Rana pretiosa) movement and demography at Dilman Meadow: Implications for future monitoring","indexId":"ofr20071016","publicationYear":"2007","noYear":false,"title":"Oregon Spotted Frog (Rana pretiosa) movement and demography at Dilman Meadow: Implications for future monitoring"},"predicate":"SUPERSEDED_BY","object":{"id":70032854,"text":"70032854 - 2008 - Demography and movement in a relocated population of Oregon Spotted Frogs (Rana pretiosa): Influence of season and gender","indexId":"70032854","publicationYear":"2008","noYear":false,"title":"Demography and movement in a relocated population of Oregon Spotted Frogs (Rana pretiosa): Influence of season and gender"},"id":1}],"lastModifiedDate":"2017-11-17T11:40:39","indexId":"70032854","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1337,"text":"Copeia","active":true,"publicationSubtype":{"id":10}},"title":"Demography and movement in a relocated population of Oregon Spotted Frogs (Rana pretiosa): Influence of season and gender","docAbstract":"We used five years of recapture data and Bayesian estimation to assess seasonal survival, movement, and growth of Oregon Spotted Frogs (Rana pretiosa) relocated into created ponds at Dilman Meadow in Oregon, USA. We evaluate hypotheses specific to the relocation and elucidate aspects of R. pretiosa life history that are poorly known. The odds of survival of relocated individuals during the first year following relocation were 0.36 times the survival odds of relocated and non-relocated frogs after one year since the relocation. Survival rate was higher for large frogs. After accounting for frog size, we found little variation in survival between ponds at Dilman Meadow. Survival was lowest for males during the breeding/post-breeding redistribution period, suggesting a high cost of breeding for males. The highest survival rates occurred during winter for both genders, and one small spring was used heavily during winter but was used rarely during the rest of the year. Individual growth was higher in ponds that were not used for breeding, and increased with increasing pond age. Our study supports other evidence that R. pretiosa use different habitats seasonally and are specific in their overwintering habitat requirements. Because frogs were concentrated during winter, predator-free overwintering springs are likely to be of particular value for R. pretiosa populations. ?? 2008 by the American Society of Ichthyologists and Herpetologists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Copeia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1643/CH-07-142","issn":"00458","usgsCitation":"Chelgren, N., Pearl, C., Adams, M., and Bowerman, J., 2008, Demography and movement in a relocated population of Oregon Spotted Frogs (Rana pretiosa): Influence of season and gender: Copeia, no. 4, p. 742-751, https://doi.org/10.1643/CH-07-142.","startPage":"742","endPage":"751","numberOfPages":"10","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":241301,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213653,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1643/CH-07-142"}],"issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fe88e4b0c8380cd4ed9c","contributors":{"authors":[{"text":"Chelgren, N.D. 0000-0003-0944-9165","orcid":"https://orcid.org/0000-0003-0944-9165","contributorId":13387,"corporation":false,"usgs":true,"family":"Chelgren","given":"N.D.","affiliations":[],"preferred":false,"id":438238,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pearl, C.A. 0000-0003-2943-7321","orcid":"https://orcid.org/0000-0003-2943-7321","contributorId":30732,"corporation":false,"usgs":true,"family":"Pearl","given":"C.A.","affiliations":[],"preferred":false,"id":438240,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Adams, M.J. 0000-0001-8844-042X","orcid":"https://orcid.org/0000-0001-8844-042X","contributorId":30183,"corporation":false,"usgs":true,"family":"Adams","given":"M.J.","affiliations":[],"preferred":false,"id":438239,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bowerman, J.","contributorId":94824,"corporation":false,"usgs":true,"family":"Bowerman","given":"J.","email":"","affiliations":[],"preferred":false,"id":438241,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70033467,"text":"70033467 - 2008 - Demography and ecology of mangrove diamondback terrapins in a wilderness area of Everglades National Park, Florida, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:33","indexId":"70033467","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1337,"text":"Copeia","active":true,"publicationSubtype":{"id":10}},"title":"Demography and ecology of mangrove diamondback terrapins in a wilderness area of Everglades National Park, Florida, USA","docAbstract":"Diamondback Terrapins (Malaclemys terrapin) are distributed in brackish water habitats along the U.S. east coast from Massachusetts to Texas, but many populations may be in decline. Whereas ample morphological, behavioral, and reproductive information has been collected for terrapins living in temperate salt marsh habitats, comparatively little is known about mangrove terrapins. To understand population structure of mangrove M. terrapin living in a wilderness area, we conducted a capture-recapture study in the remote, protected Big Sable Creek complex of Everglades National Park, Florida. The goals of the study were to collect baseline demographic data and to compare population structure and growth rates of mangrove terrapins with what is known for more well studied salt marsh terrapins in locations that experience human-imposed threats. We marked 300 terrapins; the sex ratio was 1 female:1.2 males. Considerable sexual size dimorphism was apparent, with reproductively mature females three times larger (by mass) than mature males. Eighty percent of females and 94% of males were classified as mature, based on straight plastron length (SPL). For a subset of terrapins not yet at maximum size (n = 39), we measured growth as a change in straight carapace length over time of 0.3-26.4 mm/yr for females (n = 26) and 0.9-14.5 mm/yr for males (n = 13). Our study presents the first demographic data on mangrove M. terrapin in the coastal Everglades. ?? 2008 by the American Society of Ichthyologists and Herpetologists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Copeia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1643/CE-06-161","issn":"00458511","usgsCitation":"Hart, K., and McIvor, C., 2008, Demography and ecology of mangrove diamondback terrapins in a wilderness area of Everglades National Park, Florida, USA: Copeia, no. 1, p. 200-208, https://doi.org/10.1643/CE-06-161.","startPage":"200","endPage":"208","numberOfPages":"9","costCenters":[],"links":[{"id":214331,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1643/CE-06-161"},{"id":242048,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fe87e4b0c8380cd4ed96","contributors":{"authors":[{"text":"Hart, K.M. 0000-0002-5257-7974","orcid":"https://orcid.org/0000-0002-5257-7974","contributorId":7483,"corporation":false,"usgs":true,"family":"Hart","given":"K.M.","affiliations":[],"preferred":false,"id":440988,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McIvor, C.C.","contributorId":38104,"corporation":false,"usgs":true,"family":"McIvor","given":"C.C.","email":"","affiliations":[],"preferred":false,"id":440989,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030708,"text":"70030708 - 2008 - (U-Th)/He dating of kimberlites-A case study from north-eastern Kansas","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030708","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"title":"(U-Th)/He dating of kimberlites-A case study from north-eastern Kansas","docAbstract":"Dating kimberlite intrusive rocks by radiogenic isotope geochronology often is a difficult task, complicated by both the lack of dateable minerals within kimberlite as well as significant sample alteration that can degrade samples and alter parent-daughter ratios. This study presents a new geochronologic tool for timing the emplacement of kimberlites using the (U-Th)/He system to date the cooling of common kimberlite phenocrystic and xenocrystic minerals. To demonstrate the use of this technique, new apatite, titanite, zircon, magnetite and garnet (U-Th)/He ages constrain the timing of emplacement for the Stockdale, Tuttle, Baldwin Creek, Bala, and Leonardville kimberlite pipes, located in Riley County, Kansas. Zircon from the Tuttle pipe and titanite from the Stockdale pipe yield (U-Th)/He ages of 108.6 ?? 9.6??Ma and 106.4 ?? 3.1??Ma, respectively. These data are consistent with new Tuttle kimberlite Rb-Sr analyses of phlogopite megacrysts that give a five point isochron age of 106.6 ?? 1.0??Ma. Similarly, an apatite (U-Th)/He age of 85.3 ?? 2.3??Ma from the Baldwin Creek kimberlite is in agreement with a Rb-Sr phlogopite age of 88.4 ?? 2.7??Ma. These dates demonstrate that (U-Th)/He thermochronometry provides reliable timing constraints on the cooling of common kimberlite xenocrystic phases, thereby timing kimberlite emplacement. In addition to the use of more commonly used apatite and zircon (U-Th)/He thermochronometers, we produced reliable emplacement ages of 103.0 ?? 7.5??Ma for the Bala kimberlite using (U-Th)/He dating of phenocrystic magnetite and an age of 98.8 ?? 8.9??Ma for the Tuttle kimberlite using (U-Th)/He dating of megacrystic garnet. In contrast, kimberlitic apatite (U-Th)/He ages from the Stockdale, Bala, Tuttle, and Leonardville kimberlites yield ages ranging from 67.3 ?? 4.4??Ma to 64.3 ?? 5.6??Ma, suggesting a local, possibly hydrothermal reheating event resulting in resetting of the apatite (U-Th)/He clock in latest Cretaceous to earliest Tertiary time. Additional (U-Th)/He analyses of apatite from nearby sandstone and basement rocks suggest regional cooling below ~ 70????C at ~ 165??Ma. These (U-Th)/He and Rb-Sr age data imply that the kimberlites were emplaced over a period of time from ~ 85-110??Ma with several pipes subjected to local reheating at ~ 65??Ma. ?? 2008 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earth and Planetary Science Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.epsl.2008.08.006","issn":"00128","usgsCitation":"Blackburn, T., Stockli, D., Carlson, R.W., and Berendsen, P., 2008, (U-Th)/He dating of kimberlites-A case study from north-eastern Kansas: Earth and Planetary Science Letters, v. 275, no. 1-2, p. 111-120, https://doi.org/10.1016/j.epsl.2008.08.006.","startPage":"111","endPage":"120","numberOfPages":"10","costCenters":[],"links":[{"id":211966,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.epsl.2008.08.006"},{"id":239359,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"275","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e21ee4b0c8380cd45984","contributors":{"authors":[{"text":"Blackburn, T.J.","contributorId":30034,"corporation":false,"usgs":true,"family":"Blackburn","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":428290,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stockli, D.F.","contributorId":70598,"corporation":false,"usgs":true,"family":"Stockli","given":"D.F.","email":"","affiliations":[],"preferred":false,"id":428292,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carlson, R. W.","contributorId":85331,"corporation":false,"usgs":false,"family":"Carlson","given":"R.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":428293,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Berendsen, P.","contributorId":68037,"corporation":false,"usgs":true,"family":"Berendsen","given":"P.","affiliations":[],"preferred":false,"id":428291,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030705,"text":"70030705 - 2008 - Development of a standard reference material for Cr(vi) in contaminated soil","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030705","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2155,"text":"Journal of Analytical Atomic Spectrometry","active":true,"publicationSubtype":{"id":10}},"title":"Development of a standard reference material for Cr(vi) in contaminated soil","docAbstract":"Over the last several decades, considerable contamination by hexavalent chromium has resulted from the land disposal of Chromite Ore Processing Residue (COPR). COPR contains a number of hexavalent chromium-bearing compounds that were produced in high temperature industrial processes. Concern over the carcinogenic potential of this chromium species, and its environmental mobility, has resulted in efforts to remediate these waste sites. To provide support to analytical measurements of hexavalent chromium, a candidate National Institute of Standards and Technology (NIST) Standard Reference Material?? (SRM 2701), having a hexavalent chromium content of approximately 500 mg kg -1, has been developed using material collected from a waste site in Hudson County, New Jersey, USA. The collection, processing, preparation and preliminary physico-chemical characterization of the material are discussed. A two-phase multi-laboratory testing study was carried out to provide data on material homogeneity and to assess the stability of the material over the duration of the study. The study was designed to incorporate several United States Environmental Protection Agency (USEPA) determinative methods for hexavalent chromium, including Method 6800 which is based on speciated isotope dilution mass spectrometry (SIDMS), an approach which can account for chromium species inter-conversion during the extraction and measurement sequence. This journal is ?? The Royal Society of Chemistry 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Analytical Atomic Spectrometry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1039/b808488b","issn":"02679","usgsCitation":"Nagourney, S., Wilson, S., Buckley, B., Kingston, H., Yang, S., and Long, S., 2008, Development of a standard reference material for Cr(vi) in contaminated soil: Journal of Analytical Atomic Spectrometry, v. 23, no. 11, p. 1550-1554, https://doi.org/10.1039/b808488b.","startPage":"1550","endPage":"1554","numberOfPages":"5","costCenters":[],"links":[{"id":211939,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1039/b808488b"},{"id":239324,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0044e4b0c8380cd4f698","contributors":{"authors":[{"text":"Nagourney, S.J.","contributorId":104284,"corporation":false,"usgs":true,"family":"Nagourney","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":428284,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, S. A. 0000-0002-9468-0005","orcid":"https://orcid.org/0000-0002-9468-0005","contributorId":23561,"corporation":false,"usgs":true,"family":"Wilson","given":"S. A.","affiliations":[],"preferred":false,"id":428280,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Buckley, B.","contributorId":14195,"corporation":false,"usgs":true,"family":"Buckley","given":"B.","email":"","affiliations":[],"preferred":false,"id":428279,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kingston, H.M.S.","contributorId":101875,"corporation":false,"usgs":true,"family":"Kingston","given":"H.M.S.","email":"","affiliations":[],"preferred":false,"id":428283,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Yang, S.-Y.","contributorId":74200,"corporation":false,"usgs":true,"family":"Yang","given":"S.-Y.","email":"","affiliations":[],"preferred":false,"id":428282,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Long, S.E.","contributorId":47580,"corporation":false,"usgs":true,"family":"Long","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":428281,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70030703,"text":"70030703 - 2008 - Long-term water quality and biological responses to multiple best management practices in Rock Creek, Idaho","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030703","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"Long-term water quality and biological responses to multiple best management practices in Rock Creek, Idaho","docAbstract":"Water quality and macroinvertebrate assemblage data from 1981 to 2005 were assessed to evaluate the water quality and biological responses of a western trout stream to the implementation of multiple best management practices (BMPs) on irrigated cropland. Data from Rock Creek near Twin Falls, Idaho, a long-term monitoring site, were assembled from state and federal sources to provide the evaluation. Seasonal loads of the nonpoint source pollutants suspended sediment (SS), total phosphorus (TP), and nitrate-nitrite (NN) were estimated using a regression model with time-series streamflow data and constituent concentrations. Trends in the macroinvertebrate assemblages were evaluated using a number of biological metrics and nonmetric multidimensional scaling ordination. Regression analysis found significant annual decreases in TP and SS flow-adjusted concentrations during the BMP implementation period from 1983 to 1990 of about 7 and 10%, respectively. These results are coincident with the implementation of multiple BMPs on about 75% of the irrigated cropland in the watershed. Macroinvertebrate assemblages during this time also responded with a change in taxa composition resulting in improved biotic index scores. Taxon specific TP and SS optima, empirically derived from a large national dataset, predicted a decrease in SS concentrations of about 37% (52 to 33 mg/l) and a decrease in TP concentrations of about 50% (0.20 to 0.10 mg/l) from 1981 to 1987. Decreasing trends in TP, SS, and NN pollutant loads were primarily the result of naturally low streamflow conditions during the BMP post-implementation period from 1993 to 2005. Trends in macroinvertebrate responses during 1993 to 2005 were confounded by the introduction of the New Zealand mudsnail (Potamopyrgus antipodarum), which approached densities of 100,000 per m 2 in riffle habitat. The occurrence of this invasive species appears to have caused a major shift in composition and function of the macroinvertebrate assemblages. ?? 2008 American Water Resources Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the American Water Resources Association","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1752-1688.2008.00221.x","issn":"10934","usgsCitation":"Maret, T., MacCoy, D., and Carlisle, D., 2008, Long-term water quality and biological responses to multiple best management practices in Rock Creek, Idaho: Journal of the American Water Resources Association, v. 44, no. 5, p. 1248-1269, https://doi.org/10.1111/j.1752-1688.2008.00221.x.","startPage":"1248","endPage":"1269","numberOfPages":"22","costCenters":[],"links":[{"id":211881,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.2008.00221.x"},{"id":239254,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"5","noUsgsAuthors":false,"publicationDate":"2008-10-08","publicationStatus":"PW","scienceBaseUri":"505a49b1e4b0c8380cd687f6","contributors":{"authors":[{"text":"Maret, T.R.","contributorId":9015,"corporation":false,"usgs":true,"family":"Maret","given":"T.R.","affiliations":[],"preferred":false,"id":428272,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"MacCoy, D.E.","contributorId":47814,"corporation":false,"usgs":true,"family":"MacCoy","given":"D.E.","affiliations":[],"preferred":false,"id":428273,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carlisle, D.M.","contributorId":81059,"corporation":false,"usgs":true,"family":"Carlisle","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":428274,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70031876,"text":"70031876 - 2008 - The experimental basis for interpreting particle and magnetic fabrics of sheared till","interactions":[],"lastModifiedDate":"2012-03-12T17:21:27","indexId":"70031876","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","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":"The experimental basis for interpreting particle and magnetic fabrics of sheared till","docAbstract":"Particle fabrics of basal tills may allow testing of the bed-deformation model of glacier flow, which requires high bed shear strains (>100). Field studies, however, have not yielded a systematic relationship between shear-strain magnitude and fabric development. To isolate this relationship four basal tills and viscous putty were sheared in a ring-shear device to strains as high as 714. Fabric was characterized within a zone of shear deformation using the long-axis orientations of fine-gravel and sand particles and the anisotropy of magnetic susceptibility (AMS) of small (???5-8 cm3) intact samples. Results indicate that till particles rotate toward the plane of shearing with long-axis orientations that become tightly clustered in the direction of shear (0??78 < S1 < 0??94 for three-dimensional data). These strong, steady-state fabrics are attained at shear strains of 7-30, with no evidence of fabric weakening with further strain, regardless of the specific till or particle-size fraction under consideration. These results do not support the Jeffery model of particle rotation, which correctly describes particle rotation in the viscous putty but not in the tills, owing to fluid-mechanical assumptions of the model that are violated in till. The sensitivity of fabric development to shear-strain magnitude indicates that, for most till units where shear-strain magnitude is poorly known, attributing fabric variations to spatial differences in other variables, such as till thickness or water content, will be inherently speculative. Attributing fabric characteristics to particular basal till facies is uncertain because shear-strain magnitude is unlikely to be closely correlated to till facies. Weak or spatially variable fabrics, in the absence of post-depositional disturbance or major deviations from unidirectional simple shear, indicate that till has not been pervasively sheared to the high strains required by the bed-deformation model. Strong flow-parallel fabrics are a necessary but insufficient criterion for confirming the model. Copyright ?? 2008 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earth Surface Processes and Landforms","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/esp.1666","issn":"01979337","usgsCitation":"Iverson, N., Hooyer, T., Thomason, J., Graesch, M., and Shumway, J., 2008, The experimental basis for interpreting particle and magnetic fabrics of sheared till: Earth Surface Processes and Landforms, v. 33, no. 4, p. 627-645, https://doi.org/10.1002/esp.1666.","startPage":"627","endPage":"645","numberOfPages":"19","costCenters":[],"links":[{"id":214610,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/esp.1666"},{"id":242350,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"4","noUsgsAuthors":false,"publicationDate":"2008-03-19","publicationStatus":"PW","scienceBaseUri":"505babede4b08c986b32317e","contributors":{"authors":[{"text":"Iverson, N.R.","contributorId":19682,"corporation":false,"usgs":true,"family":"Iverson","given":"N.R.","email":"","affiliations":[],"preferred":false,"id":433537,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hooyer, T.S.","contributorId":83242,"corporation":false,"usgs":true,"family":"Hooyer","given":"T.S.","email":"","affiliations":[],"preferred":false,"id":433540,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thomason, J.F.","contributorId":11745,"corporation":false,"usgs":true,"family":"Thomason","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":433536,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Graesch, M.","contributorId":47184,"corporation":false,"usgs":true,"family":"Graesch","given":"M.","email":"","affiliations":[],"preferred":false,"id":433538,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Shumway, J.R.","contributorId":79317,"corporation":false,"usgs":true,"family":"Shumway","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":433539,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70033470,"text":"70033470 - 2008 - The effects of layers in dry snow on its passive microwave emissions using dense media radiative transfer theory based on the quasicrystalline approximation (QCA/DMRT)","interactions":[],"lastModifiedDate":"2012-03-12T17:21:32","indexId":"70033470","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1944,"text":"IEEE Transactions on Geoscience and Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"The effects of layers in dry snow on its passive microwave emissions using dense media radiative transfer theory based on the quasicrystalline approximation (QCA/DMRT)","docAbstract":"A model for the microwave emissions of multilayer dry snowpacks, based on dense media radiative transfer (DMRT) theory with the quasicrystalline approximation (QCA), provides more accurate results when compared to emissions determined by a homogeneous snowpack and other scattering models. The DMRT model accounts for adhesive aggregate effects, which leads to dense media Mie scattering by using a sticky particle model. With the multilayer model, we examined both the frequency and polarization dependence of brightness temperatures (Tb's) from representative snowpacks and compared them to results from a single-layer model and found that the multilayer model predicts higher polarization differences, twice as much, and weaker frequency dependence. We also studied the temporal evolution of Tb from multilayer snowpacks. The difference between Tb's at 18.7 and 36.5 GHz can be S K lower than the single-layer model prediction in this paper. By using the snowpack observations from the Cold Land Processes Field Experiment as input for both multi- and single-layer models, it shows that the multilayer Tb's are in better agreement with the data than the single-layer model. With one set of physical parameters, the multilayer QCA/DMRT model matched all four channels of Tb observations simultaneously, whereas the single-layer model could only reproduce vertically polarized Tb's. Also, the polarization difference and frequency dependence were accurately matched by the multilayer model using the same set of physical parameters. Hence, algorithms for the retrieval of snowpack depth or water equivalent should be based on multilayer scattering models to achieve greater accuracy. ?? 2008 IEEE.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"IEEE Transactions on Geoscience and Remote Sensing","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1109/TGRS.2008.922143","issn":"01962","usgsCitation":"Liang, D., Xu, X., Tsang, L., Andreadis, K., and Josberger, E., 2008, The effects of layers in dry snow on its passive microwave emissions using dense media radiative transfer theory based on the quasicrystalline approximation (QCA/DMRT): IEEE Transactions on Geoscience and Remote Sensing, v. 46, no. 11, p. 3663-3671, https://doi.org/10.1109/TGRS.2008.922143.","startPage":"3663","endPage":"3671","numberOfPages":"9","costCenters":[],"links":[{"id":214389,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/TGRS.2008.922143"},{"id":242112,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bab8ae4b08c986b322ee5","contributors":{"authors":[{"text":"Liang, D.","contributorId":66483,"corporation":false,"usgs":true,"family":"Liang","given":"D.","email":"","affiliations":[],"preferred":false,"id":441005,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Xu, X.","contributorId":55166,"corporation":false,"usgs":true,"family":"Xu","given":"X.","email":"","affiliations":[],"preferred":false,"id":441003,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tsang, L.","contributorId":43950,"corporation":false,"usgs":true,"family":"Tsang","given":"L.","email":"","affiliations":[],"preferred":false,"id":441002,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Andreadis, K.M.","contributorId":8294,"corporation":false,"usgs":true,"family":"Andreadis","given":"K.M.","email":"","affiliations":[],"preferred":false,"id":441001,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Josberger, E.G.","contributorId":61161,"corporation":false,"usgs":true,"family":"Josberger","given":"E.G.","email":"","affiliations":[],"preferred":false,"id":441004,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70033472,"text":"70033472 - 2008 - Postearthquake relaxation after the 2004 M6 Parkfield, California, earthquake and rate-and-state friction","interactions":[],"lastModifiedDate":"2012-03-12T17:21:32","indexId":"70033472","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Postearthquake relaxation after the 2004 M6 Parkfield, California, earthquake and rate-and-state friction","docAbstract":"An unusually complete set of measurements (including rapid rate GPS over the first 10 days) of postseismic deformation is available at 12 continuous GPS stations located close to the epicenter of the 2004 M6.0 Parkfield earthquake. The principal component modes for the relaxation of the ensemble of those 12 GPS stations were determined. The first mode alone furnishes an adequate approximation to the data. Thus, the relaxation at all stations can be represented by the product of a common temporal function and distinct amplitudes for each component (north or east) of relaxation at each station. The distribution in space of the amplitudes indicates that the relaxation is dominantly strike slip. The temporal function, which spans times from about 5 min to 900 days postearthquake, can be fit by a superposition of three creep terms, each of the form ??l loge(1 + t/??l), with characteristic times ??, = 4.06, 0.11, and 0.0001 days. It seems likely that what is actually involved is a broad spectrum of characteristic times, the individual components of which arise from afterslip on different fault patches. Perfettini and Avouac (2004) have shown that an individual creep term can be explained by the spring-slider model with rate-dependent (no state variable) friction. The observed temporal function can also be explained using a single spring-slider model (i.e., single fault patch) that includes rate-and-state-dependent friction, a single-state variable, and either of the two commonly used (aging and slip) state evolution laws. In the latter fits, the rate-and-state friction parameter b is negative.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2008JB005723","issn":"01480","usgsCitation":"Savage, J., and Langbein, J., 2008, Postearthquake relaxation after the 2004 M6 Parkfield, California, earthquake and rate-and-state friction: Journal of Geophysical Research B: Solid Earth, v. 113, no. 10, https://doi.org/10.1029/2008JB005723.","costCenters":[],"links":[{"id":476732,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2008jb005723","text":"Publisher Index Page"},{"id":214423,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2008JB005723"},{"id":242147,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"113","issue":"10","noUsgsAuthors":false,"publicationDate":"2008-10-28","publicationStatus":"PW","scienceBaseUri":"505a7e7ae4b0c8380cd7a580","contributors":{"authors":[{"text":"Savage, J.C. 0000-0002-5114-7673","orcid":"https://orcid.org/0000-0002-5114-7673","contributorId":102876,"corporation":false,"usgs":true,"family":"Savage","given":"J.C.","affiliations":[],"preferred":false,"id":441013,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Langbein, J.","contributorId":16990,"corporation":false,"usgs":true,"family":"Langbein","given":"J.","affiliations":[],"preferred":false,"id":441012,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70032852,"text":"70032852 - 2008 - Joint variability of global runoff and global sea surface temperatures","interactions":[],"lastModifiedDate":"2012-03-12T17:21:24","indexId":"70032852","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2344,"text":"Journal of Hydrometeorology","active":true,"publicationSubtype":{"id":10}},"title":"Joint variability of global runoff and global sea surface temperatures","docAbstract":"Global land surface runoff and sea surface temperatures (SST) are analyzed to identify the primary modes of variability of these hydroclimatic data for the period 1905-2002. A monthly water-balance model first is used with global monthly temperature and precipitation data to compute time series of annual gridded runoff for the analysis period. The annual runoff time series data are combined with gridded annual sea surface temperature data, and the combined dataset is subjected to a principal components analysis (PCA) to identify the primary modes of variability. The first three components from the PCA explain 29% of the total variability in the combined runoff/SST dataset. The first component explains 15% of the total variance and primarily represents long-term trends in the data. The long-term trends in SSTs are evident as warming in all of the oceans. The associated long-term trends in runoff suggest increasing flows for parts of North America, South America, Eurasia, and Australia; decreasing runoff is most notable in western Africa. The second principal component explains 9% of the total variance and reflects variability of the El Ni??o-Southern Oscillation (ENSO) and its associated influence on global annual runoff patterns. The third component explains 5% of the total variance and indicates a response of global annual runoff to variability in North Aflantic SSTs. The association between runoff and North Atlantic SSTs may explain an apparent steplike change in runoff that occurred around 1970 for a number of continental regions.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrometeorology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1175/2008JHM943.1","issn":"15257","usgsCitation":"McCabe, G., and Wolock, D., 2008, Joint variability of global runoff and global sea surface temperatures: Journal of Hydrometeorology, v. 9, no. 4, p. 816-824, https://doi.org/10.1175/2008JHM943.1.","startPage":"816","endPage":"824","numberOfPages":"9","costCenters":[],"links":[{"id":476693,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1175/2008jhm943.1","text":"Publisher Index Page"},{"id":213624,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1175/2008JHM943.1"},{"id":241270,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"9","issue":"4","noUsgsAuthors":false,"publicationDate":"2008-08-01","publicationStatus":"PW","scienceBaseUri":"505a4007e4b0c8380cd649f8","contributors":{"authors":[{"text":"McCabe, G.J. 0000-0002-9258-2997","orcid":"https://orcid.org/0000-0002-9258-2997","contributorId":12961,"corporation":false,"usgs":true,"family":"McCabe","given":"G.J.","affiliations":[],"preferred":false,"id":438232,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wolock, D.M. 0000-0002-6209-938X","orcid":"https://orcid.org/0000-0002-6209-938X","contributorId":36601,"corporation":false,"usgs":true,"family":"Wolock","given":"D.M.","affiliations":[],"preferred":false,"id":438233,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70031995,"text":"70031995 - 2008 - Fidelity and breeding probability related to population density and individual quality in black brent geese Branta bernicla nigricans","interactions":[],"lastModifiedDate":"2018-08-21T15:42:09","indexId":"70031995","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2158,"text":"Journal of Animal Ecology","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Fidelity and breeding probability related to population density and individual quality in black brent geese <i>Branta bernicla nigricans</i>","title":"Fidelity and breeding probability related to population density and individual quality in black brent geese Branta bernicla nigricans","docAbstract":"1. Patterns of temporary emigration (associated with non-breeding) are important components of variation in individual quality. Permanent emigration from the natal area has important implications for both individual fitness and local population dynamics. 2. We estimated both permanent and temporary emigration of black brent geese (Branta bernicla nigricans Lawrence) from the Tutakoke River colony, using observations of marked brent geese on breeding and wintering areas, and recoveries of ringed individuals by hunters. We used the likelihood developed by Lindberg, Kendall, Hines & Anderson 2001 (Combining band recovery data and Pollock's robust design to model temporary and permanent emigration. Biometrics, 57, 273-281) to assess hypotheses and estimate parameters. 3. Temporary emigration (the converse of breeding) varied among age classes up to age 5, and differed between individuals that bred in the previous years vs. those that did not. Consistent with the hypothesis of variation in individual quality, individuals with a higher probability of breeding in one year also had a higher probability of breeding the next year. 4. Natal fidelity of females ranged from 0.70 ?? 0.07-0.96 ?? 0.18 and averaged 0.83. In contrast to Lindberg et al. (1998), we did not detect a relationship between fidelity and local population density. Natal fidelity was negatively correlated with first-year survival, suggesting that competition among individuals of the same age for breeding territories influenced dispersal. Once females nested at the Tutakoke River, colony breeding fidelity was 1.0. 5. Our analyses show substantial variation in individual quality associated with fitness, which other analyses suggest is strongly influenced by early environment. Our analyses also suggest substantial interchange among breeding colonies of brent geese, as first shown by Lindberg et al. (1998).","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Animal Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-2656.2008.01403.x","issn":"00218790","usgsCitation":"Sedinger, J.S., Chelgren, N., Ward, D.H., and Lindberg, M.S., 2008, Fidelity and breeding probability related to population density and individual quality in black brent geese Branta bernicla nigricans: Journal of Animal Ecology, v. 77, no. 4, p. 702-712, https://doi.org/10.1111/j.1365-2656.2008.01403.x.","startPage":"702","endPage":"712","numberOfPages":"11","costCenters":[],"links":[{"id":242628,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214872,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2656.2008.01403.x"}],"volume":"77","issue":"4","noUsgsAuthors":false,"publicationDate":"2008-05-09","publicationStatus":"PW","scienceBaseUri":"505a0f98e4b0c8380cd5394b","contributors":{"authors":[{"text":"Sedinger, James S.","contributorId":84861,"corporation":false,"usgs":false,"family":"Sedinger","given":"James","email":"","middleInitial":"S.","affiliations":[{"id":12742,"text":"University of Nevada Reno","active":true,"usgs":false}],"preferred":false,"id":434045,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chelgren, N.D. 0000-0003-0944-9165","orcid":"https://orcid.org/0000-0003-0944-9165","contributorId":13387,"corporation":false,"usgs":true,"family":"Chelgren","given":"N.D.","affiliations":[],"preferred":false,"id":434043,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ward, David H. 0000-0002-5242-2526 dward@usgs.gov","orcid":"https://orcid.org/0000-0002-5242-2526","contributorId":3247,"corporation":false,"usgs":true,"family":"Ward","given":"David","email":"dward@usgs.gov","middleInitial":"H.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":434044,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lindberg, M. S.","contributorId":94413,"corporation":false,"usgs":false,"family":"Lindberg","given":"M.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":434046,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70033473,"text":"70033473 - 2008 - Observations and interpretation of fundamental mode Rayleigh wavefields recorded by the Transportable Array (USArray)","interactions":[],"lastModifiedDate":"2012-03-12T17:21:32","indexId":"70033473","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Observations and interpretation of fundamental mode Rayleigh wavefields recorded by the Transportable Array (USArray)","docAbstract":"Broadband recordings of the dense Transportable Array (TA) in the western United States provide unparalleled detailed images of long-period seismic surface wavefields. With 400 stations spanning most of the western United States, wavefronts of fundamental mode Rayleigh waves may be visualized coherently across the array at periods ???40 s. In order to constrain the Rayleigh wave phase velocity structure in the western United States, I assemble a data set of vertical component seismograms from 53 teleseismic events recorded by the TA from April 2006 to October 2007. Complex amplitude spectra from these recordings at peni ods 27-100 s are interpreted using the multiplane wave tomographic method of Friederich and Wielandt (1995) and Pollitz (1999). This analysis yields detailed surface wave phase velocity and three-dimensional shear wave velocity patterns across the North American plate boundary zone, elucidating the active processes in the highly heterogeneous western U.S. upper mantle.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007JB005556","issn":"01480","usgsCitation":"Pollitz, F., 2008, Observations and interpretation of fundamental mode Rayleigh wavefields recorded by the Transportable Array (USArray): Journal of Geophysical Research B: Solid Earth, v. 113, no. 10, https://doi.org/10.1029/2007JB005556.","costCenters":[],"links":[{"id":214424,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007JB005556"},{"id":242148,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"113","issue":"10","noUsgsAuthors":false,"publicationDate":"2008-10-16","publicationStatus":"PW","scienceBaseUri":"505a6a6ce4b0c8380cd7416f","contributors":{"authors":[{"text":"Pollitz, F. F.","contributorId":108280,"corporation":false,"usgs":true,"family":"Pollitz","given":"F. F.","affiliations":[],"preferred":false,"id":441014,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70032275,"text":"70032275 - 2008 - Strong-motion data from the two Pingtung, Taiwan, earthquakes of 26 December 2006","interactions":[],"lastModifiedDate":"2020-03-23T07:28:21","indexId":"70032275","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3532,"text":"Terrestrial, Atmospheric and Oceanic Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Strong-motion data from the two Pingtung, Taiwan, earthquakes of 26 December 2006","docAbstract":"1016 strong-motion records at 527 free-field stations and 131 records at 42 strong-motion arrays at buildings and bridges were obtained for the Pingtung earthquake doublet from the Taiwan Central Weather Bureau's dense, digital strong-motion network. We carried out standard processing of these strong-motion records at free-field stations. A data set, including the originally recorded files, processed data files, and supporting software and information, is archived online http:// tecdc.earth.sinica.edu.tw/data/EQ2006Pingtung/. We have not yet completed the processing of the strong-motion array data at buildings and bridges. However, some preliminary results and the strong-motion array data recorded at the second nearest instrumented building to the Pingtung earthquake doublet are shown. This paper is intended to document our data processing procedures and the online archived data files, so that researchers can efficiently use the data. We also include two preliminary analyses: (1) a comparison of ground motions recorded by multiple accelerographs at a common site, the TAP 117 station in Taipei, and (2) attenuation of the horizontal ground motions (peak acceleration and response spectra at periods of 0.2, 1.0, and 3.0 s) with respect to distance. Our comparison study of multiple recordings at TAP 117 indicates that waveform coherence among 20- and 24-bit accelerograph records is much higher as compared to records from 16-bit or 12-bit accelerographs, suggesting that the former are of better quality. For the 20- and 24-bit accelerographs, waveform coherence is nearly 1 over the frequency range 1 to 8 Hz for all components, and is greater than about 0.9 from 8 to 20 Hz for the horizontal component, but only from 8 to 12 Hz for the vertical component. Plots of pseudo-acceleration response spectra (PSA) as a function of distance, however, show no clear indication for a difference related to the performance level of the accelerographs. The ground-motions of the first event (Mw = 7.0) are comparable, or even somewhat lower, than those from the smaller second event (Mw = 6.9), consistent with the relative difference of the local magnitudes (ML = 6.96 and 6.99 for the first and second events, respectively). The ground motions from the first event are generally lower than those predicted from equations based on other in-slab subduction earthquakes, whereas the ground motions from the second event are closer to the predictions. Ground-motions for soil sites are generally larger than those from rock sites.","language":"English","publisher":"CGU","doi":"10.3319/TAO.2008.19.6.595(PT)","issn":"10170","usgsCitation":"Wu, C., Lee, W., and Boore, D., 2008, Strong-motion data from the two Pingtung, Taiwan, earthquakes of 26 December 2006: Terrestrial, Atmospheric and Oceanic Sciences, v. 19, no. 6, p. 595-639, https://doi.org/10.3319/TAO.2008.19.6.595(PT).","productDescription":"45 p.","startPage":"595","endPage":"639","numberOfPages":"45","costCenters":[],"links":[{"id":476959,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3319/tao.2008.19.6.595(pt)","text":"Publisher Index Page"},{"id":242842,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Taiwan","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[121.77782,24.39427],[121.17563,22.79086],[120.74708,21.97057],[120.22008,22.81486],[120.10619,23.55626],[120.69468,24.53845],[121.49504,25.29546],[121.95124,24.9976],[121.77782,24.39427]]]},\"properties\":{\"name\":\"Taiwan\"}}]}","volume":"19","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9b97e4b08c986b31cfa8","contributors":{"authors":[{"text":"Wu, C.-F.","contributorId":38796,"corporation":false,"usgs":true,"family":"Wu","given":"C.-F.","email":"","affiliations":[],"preferred":false,"id":435394,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lee, W.H.K.","contributorId":35303,"corporation":false,"usgs":true,"family":"Lee","given":"W.H.K.","affiliations":[],"preferred":false,"id":435393,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Boore, D.M. 0000-0002-8605-9673","orcid":"https://orcid.org/0000-0002-8605-9673","contributorId":64226,"corporation":false,"usgs":true,"family":"Boore","given":"D.M.","affiliations":[],"preferred":false,"id":435395,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70033474,"text":"70033474 - 2008 - Seasonal variation in sensitivity of larval sea lampreys to the lampricide 3-trifluoromethyl-4-nitrophenol","interactions":[],"lastModifiedDate":"2012-03-12T17:21:32","indexId":"70033474","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","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":"Seasonal variation in sensitivity of larval sea lampreys to the lampricide 3-trifluoromethyl-4-nitrophenol","docAbstract":"We evaluated the sensitivity of larval sea lampreys Petromyzon marinus to the lampricide 3-trifluoromethyl-4-nitrophenol (TFM) in a series of toxicity tests in spring and summer. Although noted previously, the seasonal variation in sensitivity to TFM had never been tested as a means of reducing TFM usage in stream treatments. A preliminary study consisted of three spring and four summer static toxicity tests conducted at 12??C. A more comprehensive study consisted of 12 spring and summer paired flow-through toxicity tests conducted both at seasonal water temperatures and at 12??C. The sensitivity of larval sea lampreys to TFM was greater in spring than in summer. The preliminary static toxicity tests indicated that the concentration of TFM needed to kill larval sea lampreys in spring (May and June) was about one-half that required in summer (August); the concentrations lethal to 50% and 99.9% of the test animals (the LC50 and LC99.9 values) were less in spring than in summer. Analysis of variance of the flow-through toxicity data indicated that season significantly affected both the LC50 and LC99.9 values. For all 12 paired flow-through toxicity tests, the spring LC50 and LC99.9 values were less than the corresponding summer values. For 9 of the 12 paired flow-through toxicity tests, the dose-response toxicity lines were parallel and allowed statistical comparison of the LC50 values. The spring LC50 values were significantly lower than the summer values in eight of the nine tests. Verification of a seasonal variation in the sensitivity of larval sea lampreys to TFM will allow inclusion of this factor in the selection model currently used by both the U.S. Fish and Wildlife Service and the Department of Fisheries and Oceans-Canada to schedule lampricide stream treatments. ?? Copyright by the American Fisheries Society 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M06-178.1","issn":"02755","usgsCitation":"Scholefield, R., Slaght, K., and Stephens, B., 2008, Seasonal variation in sensitivity of larval sea lampreys to the lampricide 3-trifluoromethyl-4-nitrophenol: North American Journal of Fisheries Management, v. 28, no. 5, p. 1609-1617, https://doi.org/10.1577/M06-178.1.","startPage":"1609","endPage":"1617","numberOfPages":"9","costCenters":[],"links":[{"id":214425,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M06-178.1"},{"id":242149,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"5","noUsgsAuthors":false,"publicationDate":"2008-10-01","publicationStatus":"PW","scienceBaseUri":"505b88ede4b08c986b316c3f","contributors":{"authors":[{"text":"Scholefield, R.J.","contributorId":92641,"corporation":false,"usgs":true,"family":"Scholefield","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":441016,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Slaght, K.S.","contributorId":16666,"corporation":false,"usgs":true,"family":"Slaght","given":"K.S.","email":"","affiliations":[],"preferred":false,"id":441015,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stephens, B.E.","contributorId":106085,"corporation":false,"usgs":true,"family":"Stephens","given":"B.E.","email":"","affiliations":[],"preferred":false,"id":441017,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70032001,"text":"70032001 - 2008 - Reply to comments by Mastalerz, V. on \"Shallow gasoff the Rhône  prodelta, Gulf of Lions\" Marine Geology 234 (215-231)","interactions":[],"lastModifiedDate":"2015-04-06T09:23:12","indexId":"70032001","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Reply to comments by Mastalerz, V. on \"Shallow gasoff the Rhône  prodelta, Gulf of Lions\" Marine Geology 234 (215-231)","docAbstract":"<p><span>We really appreciate the interest and comments regarding our manuscript. We hope we address all the lingering issues in this reply. This also gives us the opportunity of publishing an update on our dataset that will complete the original manuscript (see&nbsp;</span><span id=\"btbl1\"><a id=\"ancbtbl1\" class=\"intra_ref\" href=\"http://www.sciencedirect.com/science/article/pii/S0025322707001454#tbl1\">Table 1</a></span><span>). We have followed the author pattern in our answers: 1-Gas sampling procedure, 2-Reported gas concentrations results, 3-General remarks, 4-Conclusions.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.margeo.2007.05.009","issn":"00253227","usgsCitation":"Garcia-Garcia, A., Orange, D.L., Lorenson, T., Radakovitch, O., Tesi, T., Miserocchi, S., Berne, S., Friend, P., Nittrouer, C., and Normand, A., 2008, Reply to comments by Mastalerz, V. on \"Shallow gasoff the Rhône  prodelta, Gulf of Lions\" Marine Geology 234 (215-231): Marine Geology, v. 248, no. 1-2, p. 118-121, https://doi.org/10.1016/j.margeo.2007.05.009.","productDescription":"4 p.","startPage":"118","endPage":"121","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":476815,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.1016/j.margeo.2007.05.009","text":"External Repository"},{"id":242725,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214963,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.margeo.2007.05.009"}],"volume":"248","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aa76ae4b0c8380cd853dd","contributors":{"authors":[{"text":"Garcia-Garcia, Ana","contributorId":43958,"corporation":false,"usgs":true,"family":"Garcia-Garcia","given":"Ana","email":"","affiliations":[],"preferred":false,"id":434087,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Orange, Daniel L.","contributorId":23309,"corporation":false,"usgs":true,"family":"Orange","given":"Daniel","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":434082,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lorenson, T.D. tlorenson@usgs.gov","contributorId":2622,"corporation":false,"usgs":true,"family":"Lorenson","given":"T.D.","email":"tlorenson@usgs.gov","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"preferred":false,"id":434090,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Radakovitch, Olivier","contributorId":23324,"corporation":false,"usgs":true,"family":"Radakovitch","given":"Olivier","email":"","affiliations":[],"preferred":false,"id":434083,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Tesi, Tommaso","contributorId":106687,"corporation":false,"usgs":true,"family":"Tesi","given":"Tommaso","email":"","affiliations":[],"preferred":false,"id":434091,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Miserocchi, Stefano","contributorId":68949,"corporation":false,"usgs":true,"family":"Miserocchi","given":"Stefano","email":"","affiliations":[],"preferred":false,"id":434089,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Berne, Serge","contributorId":68089,"corporation":false,"usgs":true,"family":"Berne","given":"Serge","email":"","affiliations":[],"preferred":false,"id":434088,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Friend, Patrick","contributorId":32003,"corporation":false,"usgs":true,"family":"Friend","given":"Patrick","affiliations":[],"preferred":false,"id":434086,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Nittrouer, Chuck","contributorId":23325,"corporation":false,"usgs":true,"family":"Nittrouer","given":"Chuck","email":"","affiliations":[],"preferred":false,"id":434084,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Normand, Alain","contributorId":26499,"corporation":false,"usgs":true,"family":"Normand","given":"Alain","email":"","affiliations":[],"preferred":false,"id":434085,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70033486,"text":"70033486 - 2008 - Geographical and climatic limits of needle types of one- and two-needled pinyon pines","interactions":[],"lastModifiedDate":"2012-03-12T17:21:29","indexId":"70033486","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2193,"text":"Journal of Biogeography","active":true,"publicationSubtype":{"id":10}},"title":"Geographical and climatic limits of needle types of one- and two-needled pinyon pines","docAbstract":"Aim: The geographical extent and climatic tolerances of one- and two-needled pinyon pines (Pinus subsect. Cembroides) are the focus of questions in taxonomy, palaeoclimatology and modelling of future distributions. The identification of these pines, traditionally classified by one- versus two-needled fascicles, is complicated by populations with both one- and two-needled fascicles on the same tree, and the description of two more recently described one-needled varieties: the fallax-type and californiarum-type. Because previous studies have suggested correlations between needle anatomy and climate, including anatomical plasticity reflecting annual precipitation, we approached this study at the level of the anatomy of individual pine needles rather than species. Location: Western North America. Methods: We synthesized available and new data from field and herbarium collections of needles to compile maps of their current distributions across western North America. Annual frequencies of needle types were compared with local precipitation histories for some stands. Historical North American climates were modelled on a c. 1-km grid using monthly temperature and precipitation values. A geospatial model (ClimLim), which analyses the effect of climate-modulated physiological and ecosystem processes, was used to rank the importance of seasonal climate variables in limiting the distributions of anatomical needle types. Results: The pinyon needles were classified into four distinct types based upon the number of needles per fascicle, needle thickness and the number of stomatal rows and resin canals. The individual needles fit well into four categories of needle types, whereas some trees exhibit a mixture of two needle types. Trees from central Arizona containing a mixture of Pinus edulis and fallax-type needles increased their percentage of fallax-type needles following dry years. All four needle types occupy broader geographical regions with distinctive precipitation regimes. Pinus monophylla and californiarum-type needles occur in regions with high winter precipitation. Pinus edulis and fallax-type needles are found in regions with high monsoon precipitation. Areas supporting californiarum-type and fallax-type needle distributions are additionally characterized by a more extreme May-June drought. Main conclusions: These pinyon needle types seem to reflect the amount and seasonality of precipitation. The single needle fascicle characterizing the fallax type may be an adaptation to early summer or periodic drought, while the single needle of Pinus monophylla may be an adaptation to summer-autumn drought. Although the needles fit into four distinct categories, the parent trees are sometimes less easily classified, especially near their ancestral Pleistocene ranges in the Mojave and northern Sonoran deserts. The abundance of trees with both one- and two-needled fascicles in the zones between P. monophylla, P. edulis and fallax-type populations suggest that needle fascicle number is an unreliable characteristic for species classification. Disregarding needle fascicle number, the fallax-type needles are nearly identical to P. edulis, supporting Little's (1968) initial classification of these trees as P. edulis var. fallax, while the californiarum-type needles have a distinctive morphology supporting Bailey's (1987) classification of this tree as Pinus californiarum.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Biogeography","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-2699.2007.01786.x","issn":"03050270","usgsCitation":"Cole, K., Fisher, J., Arundel, S., Cannella, J., and Swift, S., 2008, Geographical and climatic limits of needle types of one- and two-needled pinyon pines: Journal of Biogeography, v. 35, no. 2, p. 257-269, https://doi.org/10.1111/j.1365-2699.2007.01786.x.","startPage":"257","endPage":"269","numberOfPages":"13","costCenters":[],"links":[{"id":476731,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1365-2699.2007.01786.x","text":"Publisher Index Page"},{"id":241785,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214095,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2699.2007.01786.x"}],"volume":"35","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-09-24","publicationStatus":"PW","scienceBaseUri":"505a1790e4b0c8380cd5554c","contributors":{"authors":[{"text":"Cole, K.L.","contributorId":87507,"corporation":false,"usgs":true,"family":"Cole","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":441085,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fisher, J.","contributorId":37160,"corporation":false,"usgs":true,"family":"Fisher","given":"J.","affiliations":[],"preferred":false,"id":441081,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Arundel, S.T.","contributorId":77351,"corporation":false,"usgs":true,"family":"Arundel","given":"S.T.","email":"","affiliations":[],"preferred":false,"id":441082,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cannella, J.","contributorId":78563,"corporation":false,"usgs":true,"family":"Cannella","given":"J.","email":"","affiliations":[],"preferred":false,"id":441083,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Swift, S.","contributorId":80912,"corporation":false,"usgs":true,"family":"Swift","given":"S.","email":"","affiliations":[],"preferred":false,"id":441084,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031815,"text":"70031815 - 2008 - Characterization and cycling of atmospheric mercury along the central US Gulf Coast","interactions":[],"lastModifiedDate":"2018-10-22T08:05:28","indexId":"70031815","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","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":"Characterization and cycling of atmospheric mercury along the central US Gulf Coast","docAbstract":"<div id=\"abstracts\" class=\"Abstracts\"><div id=\"aep-abstract-id18\" class=\"abstract author\" lang=\"en\"><div id=\"aep-abstract-sec-id19\"><p>Concentrations of atmospheric Hg species, elemental Hg (Hg<sup>∘</sup>), reactive gaseous Hg (RGM), and fine particulate Hg (Hg-PM<sub>2.5</sub>) were measured at a coastal site near Weeks Bay, Alabama from April to August, 2005 and January to May, 2006. Mean concentrations of the species were 1.6&nbsp;±&nbsp;0.3&nbsp;ng&nbsp;m<sup>−3</sup>, 4.0&nbsp;±&nbsp;7.5&nbsp;pg&nbsp;m<sup>−3</sup><span>&nbsp;</span>and 2.7&nbsp;±&nbsp;3.4&nbsp;pg&nbsp;m<sup>−3</sup>, respectively. A strong diel pattern was observed for RGM (midday maximum concentrations were up to 92.7&nbsp;pg&nbsp;m<sup>−3</sup>), but not for Hg<sup>∘</sup><span>&nbsp;</span>or Hg-PM<sub>2.5</sub>. Elevated RGM concentrations (&gt;25&nbsp;pg&nbsp;m<sup>−3</sup>) in April and May of 2005 correlated with elevated average daytime O<sub>3</sub><span>&nbsp;</span>concentrations (&gt;55&nbsp;ppbv) and high light intensity (&gt;500&nbsp;W&nbsp;m<sup>−2</sup>). These conditions generally corresponded with mixed continental-Gulf and exclusively continental air mass trajectories. Generally lower, but still elevated, RGM peaks observed in August, 2005 and January–March, 2006 correlated significantly (<i>p</i>&nbsp;&lt;&nbsp;0.05) with peaks in SO<sub>2</sub><span>&nbsp;</span>concentration and corresponded to periods of high light intensity and lower average daytime O<sub>3</sub><span>&nbsp;</span>concentrations. During these times air masses were dominated by trajectories that originated over the continent. Elevated RGM concentrations likely resulted from photochemical oxidation of Hg<sup>∘</sup><span>&nbsp;</span>by atmospheric oxidants. This process may have been enhanced in and by the near-shore environment relative to inland sites. The marine boundary layer itself was not found to be a significant source of RGM.</p><p>Size segregation determination, using a limited dataset from two different methods, suggested that a significant fraction of particulate Hg was bound to coarse particles (&gt;2.5&nbsp;μm). A potential source of the large fraction of coarse particulate Hg in the study area is sequestration of RGM within sea salt aerosols. The presence of rapidly depositing RGM and coarse particulate Hg may be important sources of Hg input along the Gulf Coast. However, the impact of these species on deposition rates is yet to be determined.</p></div></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/j.apgeochem.2007.12.024","issn":"08832927","usgsCitation":"Engle, M., Tate, M., Krabbenhoft, D., Kolker, A., Olson, M., Edgerton, E., DeWild, J., and McPherson, A., 2008, Characterization and cycling of atmospheric mercury along the central US Gulf Coast: Applied Geochemistry, v. 23, no. 3, p. 419-437, https://doi.org/10.1016/j.apgeochem.2007.12.024.","productDescription":"19 p.","startPage":"419","endPage":"437","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":242517,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214767,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2007.12.024"}],"volume":"23","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f4ace4b0c8380cd4be51","contributors":{"authors":[{"text":"Engle, M.A. 0000-0001-5258-7374","orcid":"https://orcid.org/0000-0001-5258-7374","contributorId":55144,"corporation":false,"usgs":true,"family":"Engle","given":"M.A.","affiliations":[],"preferred":false,"id":433258,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tate, M.T.","contributorId":29638,"corporation":false,"usgs":true,"family":"Tate","given":"M.T.","email":"","affiliations":[],"preferred":false,"id":433256,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Krabbenhoft, D. P. 0000-0003-1964-5020","orcid":"https://orcid.org/0000-0003-1964-5020","contributorId":90765,"corporation":false,"usgs":true,"family":"Krabbenhoft","given":"D. P.","affiliations":[],"preferred":false,"id":433260,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kolker, A. 0000-0002-5768-4533","orcid":"https://orcid.org/0000-0002-5768-4533","contributorId":10947,"corporation":false,"usgs":true,"family":"Kolker","given":"A.","affiliations":[],"preferred":false,"id":433254,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Olson, M.L.","contributorId":21989,"corporation":false,"usgs":true,"family":"Olson","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":433255,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Edgerton, E.S.","contributorId":91705,"corporation":false,"usgs":true,"family":"Edgerton","given":"E.S.","email":"","affiliations":[],"preferred":false,"id":433261,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"DeWild, J.F. 0000-0003-4097-2798 jfdewild@usgs.gov","orcid":"https://orcid.org/0000-0003-4097-2798","contributorId":56375,"corporation":false,"usgs":true,"family":"DeWild","given":"J.F.","email":"jfdewild@usgs.gov","affiliations":[],"preferred":false,"id":433259,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"McPherson, A.K.","contributorId":35142,"corporation":false,"usgs":true,"family":"McPherson","given":"A.K.","email":"","affiliations":[],"preferred":false,"id":433257,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
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