{"pageNumber":"6628","pageRowStart":"165675","pageSize":"25","recordCount":165720,"records":[{"id":70240956,"text":"70240956 - null - Detecting sulfamethoxazole and carbamazepine in groundwater: Is ELISA a reliable screening tool?","interactions":[],"lastModifiedDate":"2023-03-02T15:59:52.993168","indexId":"70240956","displayToPublicDate":"2017-12-01T09:56:22","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1555,"text":"Environmental Pollution","active":true,"publicationSubtype":{"id":10}},"title":"Detecting sulfamethoxazole and carbamazepine in groundwater: Is ELISA a reliable screening tool?","docAbstract":"<p><span>In recent years, numerous studies have reported the prevalence of organic&nbsp;</span>micropollutants<span>&nbsp;in natural waters. There is an increasing interest in assessing the occurrence and transport of these contaminants in groundwater because a large number of people in the United States rely on groundwater for their drinking water. However, commonly used mass-spectrometry-based analytical methods are expensive and time-consuming. The enzyme-linked immunosorbent assay (ELISA) method offers an inexpensive analytical alternative that provides semi-quantitative results in a relatively quick timeframe. We investigated the use of ELISA for two commonly detected micropollutants, sulfamethoxazole (SMX) and carbamazepine (CBZ), in groundwater collected as part of two different studies, one in Minnesota and the other in Iowa. The ELISA results were compared with two mass-spectrometry-based methods: (1) direct aqueous injection-high performance liquid chromatography/tandem mass spectrometry (HPLC) and (2) online solid-phase extraction with liquid chromatography/electrospray ionization-mass spectrometry (SPE LC). Differences in SMX and CBZ observations between ELISA and both HPLC and SPE LC were analyzed using the Paired Prentice-Wilcoxon test. Estimates of bias and limits of agreement between paired observations also were calculated. The SMX determinations by ELISA yielded results that were 30 and 14% greater than HPLC and SPE LC, respectively. The CBZ determinations by ELISA yielded results that were 25 and 9% greater than HPLC and SPE LC, respectively. The ELISA determinations were in presence-absence agreement with HPLC for 83% of samples for SMX and CBZ; and with SPE LC for 76 and 80% of samples for SMX and CBZ, respectively. Results indicate that ELISA for SMX and CBZ is a reliable and cost effective screening-tool alternative to more commonly used mass spectrometry-based analytical methods.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.envpol.2017.11.065","usgsCitation":"Krall, A.L., Elliott, S.M., Erickson, M., and Adams, B.A., Detecting sulfamethoxazole and carbamazepine in groundwater: Is ELISA a reliable screening tool?: Environmental Pollution, v. 234, p. 420-428, https://doi.org/10.1016/j.envpol.2017.11.065.","productDescription":"9 p.","startPage":"420","endPage":"428","ipdsId":"IP-088677","costCenters":[{"id":37947,"text":"Upper Midwest Water Science Center","active":true,"usgs":true}],"links":[{"id":413619,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"234","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Krall, Aliesha L. 0000-0003-2521-5043 adiekoff@usgs.gov","orcid":"https://orcid.org/0000-0003-2521-5043","contributorId":176545,"corporation":false,"usgs":true,"family":"Krall","given":"Aliesha","email":"adiekoff@usgs.gov","middleInitial":"L.","affiliations":[{"id":37947,"text":"Upper Midwest Water Science Center","active":true,"usgs":true},{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":865481,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elliott, Sarah M. 0000-0002-1414-3024 selliott@usgs.gov","orcid":"https://orcid.org/0000-0002-1414-3024","contributorId":1472,"corporation":false,"usgs":true,"family":"Elliott","given":"Sarah","email":"selliott@usgs.gov","middleInitial":"M.","affiliations":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":865482,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Erickson, Melinda L. 0000-0002-1117-2866 merickso@usgs.gov","orcid":"https://orcid.org/0000-0002-1117-2866","contributorId":3671,"corporation":false,"usgs":true,"family":"Erickson","given":"Melinda L.","email":"merickso@usgs.gov","affiliations":[{"id":37947,"text":"Upper Midwest Water Science Center","active":true,"usgs":true},{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":865483,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Adams, Byron A.","contributorId":206805,"corporation":false,"usgs":false,"family":"Adams","given":"Byron","email":"","middleInitial":"A.","affiliations":[{"id":13330,"text":"Minnesota Pollution Control Agency","active":true,"usgs":false}],"preferred":false,"id":865484,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70236057,"text":"70236057 - null - Characterizing the interface between wild ducks and poultry to evaluate the potential of transmission of avian pathogens","interactions":[],"lastModifiedDate":"2022-08-26T16:20:23.390723","indexId":"70236057","displayToPublicDate":"2011-11-15T11:12:57","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2050,"text":"International Journal of Health Geographics","active":true,"publicationSubtype":{"id":10}},"title":"Characterizing the interface between wild ducks and poultry to evaluate the potential of transmission of avian pathogens","docAbstract":"<h3 class=\"c-article__sub-heading\" data-test=\"abstract-sub-heading\">Background</h3><p>Characterizing the interface between wild and domestic animal populations is increasingly recognized as essential in the context of emerging infectious diseases (EIDs) that are transmitted by wildlife. More specifically, the spatial and temporal distribution of contact rates between wild and domestic hosts is a key parameter for modeling EIDs transmission dynamics. We integrated satellite telemetry, remote sensing and ground-based surveys to evaluate the spatio-temporal dynamics of indirect contacts between wild and domestic birds to estimate the risk that avian pathogens such as avian influenza and Newcastle viruses will be transmitted between wildlife to poultry. We monitored comb ducks (<i>Sarkidiornis melanotos melanotos</i>) with satellite transmitters for seven months in an extensive Afro-tropical wetland (the Inner Niger Delta) in Mali and characterise the spatial distribution of backyard poultry in villages. We modelled the spatial distribution of wild ducks using 250-meter spatial resolution and 8-days temporal resolution remotely-sensed environmental indicators based on a Maxent niche modelling method.</p><h3 class=\"c-article__sub-heading\" data-test=\"abstract-sub-heading\">Results</h3><p>Our results show a strong seasonal variation in potential contact rate between wild ducks and poultry. We found that the exposure of poultry to wild birds was greatest at the end of the dry season and the beginning of the rainy season, when comb ducks disperse from natural water bodies to irrigated areas near villages.</p><h3 class=\"c-article__sub-heading\" data-test=\"abstract-sub-heading\">Conclusions</h3><p>Our study provides at a local scale a quantitative evidence of the seasonal variability of contact rate between wild and domestic bird populations. It illustrates a GIS-based methodology for estimating epidemiological contact rates at the wildlife and livestock interface integrating high-resolution satellite telemetry and remote sensing data.</p>","language":"English","publisher":"Springer Nature","doi":"10.1186/1476-072X-10-60","usgsCitation":"Cappelle, J., Gaidet, N., Iverson, S.A., Takekawa, J.Y., Newman, S.H., Fofana, B., and Gilbert, M., Characterizing the interface between wild ducks and poultry to evaluate the potential of transmission of avian pathogens: International Journal of Health Geographics, v. 10, 60, 9 p., https://doi.org/10.1186/1476-072X-10-60.","productDescription":"60, 9 p.","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":480526,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1186/1476-072x-10-60","text":"Publisher Index Page"},{"id":405689,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mali","otherGeospatial":"Inner Niger Delta","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -4.55108642578125,\n              14.98193315445839\n            ],\n            [\n              -3.9166259765625,\n              14.98193315445839\n            ],\n            [\n              -3.9166259765625,\n              15.493385656382307\n            ],\n            [\n              -4.55108642578125,\n              15.493385656382307\n            ],\n            [\n              -4.55108642578125,\n              14.98193315445839\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"10","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Cappelle, Julien","contributorId":71440,"corporation":false,"usgs":true,"family":"Cappelle","given":"Julien","email":"","affiliations":[],"preferred":false,"id":849877,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gaidet, Nicolas","contributorId":37601,"corporation":false,"usgs":true,"family":"Gaidet","given":"Nicolas","email":"","affiliations":[],"preferred":false,"id":849878,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Iverson, S. A.","contributorId":22556,"corporation":false,"usgs":true,"family":"Iverson","given":"S.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":849879,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Takekawa, John Y. 0000-0003-0217-5907 john_takekawa@usgs.gov","orcid":"https://orcid.org/0000-0003-0217-5907","contributorId":196611,"corporation":false,"usgs":true,"family":"Takekawa","given":"John","email":"john_takekawa@usgs.gov","middleInitial":"Y.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":849880,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Newman, Scott H.","contributorId":199129,"corporation":false,"usgs":false,"family":"Newman","given":"Scott","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":849881,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Fofana, Bouba","contributorId":295743,"corporation":false,"usgs":false,"family":"Fofana","given":"Bouba","email":"","affiliations":[],"preferred":false,"id":849882,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Gilbert, Marius","contributorId":61148,"corporation":false,"usgs":true,"family":"Gilbert","given":"Marius","email":"","affiliations":[],"preferred":false,"id":849883,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70207642,"text":"70207642 - null - Using indirect methods to constrain symbiotic nitrogen fixation rates: A case study from an Amazonian rain forest","interactions":[],"lastModifiedDate":"2020-01-02T10:31:59","indexId":"70207642","displayToPublicDate":"2010-12-31T10:15:44","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1007,"text":"Biogeochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Using indirect methods to constrain symbiotic nitrogen fixation rates: A case study from an Amazonian rain forest","docAbstract":"<p><span>Human activities have profoundly altered the global&nbsp;</span><span class=\"ScopusTermHighlight\">nitrogen</span><span>&nbsp;(N) cycle. Increases in anthropogenic N have had multiple effects on the atmosphere, on terrestrial, freshwater and marine ecosystems, and even on human health. Unfortunately, methodological limitations challenge our ability to directly measure natural N inputs via biological N&nbsp;</span><span class=\"ScopusTermHighlight\">fixation</span><span>&nbsp;(BNF)-the largest natural source of new N to ecosystems. This confounds efforts to quantify the extent of anthropogenic perturbation to the N cycle. To address this gap, we used a pair of&nbsp;</span><span class=\"ScopusTermHighlight\">indirect</span><span>&nbsp;</span><span class=\"ScopusTermHighlight\">methods</span><span>-analytical modeling and N balance-to generate independent estimates of BNF in a presumed hotspot of N&nbsp;</span><span class=\"ScopusTermHighlight\">fixation</span><span>, a tropical rain forest site in central Rondônia in the Brazilian Amazon Basin. Our objectives were to attempt to&nbsp;</span><span class=\"ScopusTermHighlight\">constrain</span><span>&nbsp;</span><span class=\"ScopusTermHighlight\">symbiotic</span><span>&nbsp;N&nbsp;</span><span class=\"ScopusTermHighlight\">fixation</span><span>&nbsp;</span><span class=\"ScopusTermHighlight\">rates</span><span>&nbsp;in this site using&nbsp;</span><span class=\"ScopusTermHighlight\">indirect</span><span>&nbsp;</span><span class=\"ScopusTermHighlight\">methods</span><span>, and to assess strengths and weaknesses of this approach by looking for areas of convergence and disagreement between the estimates. This approach yielded two remarkably similar estimates of N&nbsp;</span><span class=\"ScopusTermHighlight\">fixation</span><span>. However, when compared to a previously published bottom-up estimate, our analysis indicated much lower N inputs via&nbsp;</span><span class=\"ScopusTermHighlight\">symbiotic</span><span>&nbsp;BNF in the Rondônia site than has been suggested for the tropics as a whole. This discrepancy may reflect errors associated with extrapolating bottom-up fluxes from plot-scale measures, those resulting from the&nbsp;</span><span class=\"ScopusTermHighlight\">indirect</span><span>&nbsp;analyses, and/or the relatively low abundance of legumes at the Rondônia site. While&nbsp;</span><span class=\"ScopusTermHighlight\">indirect</span><span>&nbsp;</span><span class=\"ScopusTermHighlight\">methods</span><span>&nbsp;have some limitations, we suggest that until the technological challenges of directly measuring N&nbsp;</span><span class=\"ScopusTermHighlight\">fixation</span><span>&nbsp;are overcome, integrated approaches that employ a combination of model-generated and empirically-derived data offer a promising way of constraining N inputs via BNF in natural ecosystems.&nbsp;</span></p>","language":"English","doi":"10.1007/s10533-009-9392-y","issn":"01682563","usgsCitation":"Cleveland, C., Houlton , B., Neill, C., Reed, S.C., Wang, Y., and Townsend, A., Using indirect methods to constrain symbiotic nitrogen fixation rates: A case study from an Amazonian rain forest: Biogeochemistry, v. 99, no. 1, p. 1-13, https://doi.org/10.1007/s10533-009-9392-y.","productDescription":"13 p. ","startPage":"1","endPage":"13","costCenters":[],"links":[{"id":480528,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1007/s10533-009-9392-y","text":"Publisher Index Page"},{"id":370927,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Amazonian rain forest","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -60.8642578125,\n              8.624472107633936\n            ],\n            [\n              -63.06152343750001,\n              7.013667927566642\n            ],\n            [\n              -64.3359375,\n              7.36246686553575\n            ],\n            [\n              -66.4453125,\n              7.449624260197816\n            ],\n            [\n              -68.291015625,\n              5.090944175033399\n            ],\n            [\n              -72.8173828125,\n              3.425691524418062\n            ],\n            [\n              -76.201171875,\n              2.3723687086440504\n            ],\n            [\n              -78.2666015625,\n              -1.7575368113083125\n            ],\n            [\n              -79.0576171875,\n              -5.266007882805485\n            ],\n            [\n              -76.552734375,\n              -9.622414142924805\n            ],\n            [\n              -73.6962890625,\n              -13.025965926333539\n            ],\n            [\n              -71.2353515625,\n              -12.983147716796566\n            ],\n            [\n              -68.3349609375,\n              -16.003575733881313\n            ],\n            [\n              -59.9853515625,\n              -16.13026201203474\n            ],\n            [\n              -55.06347656249999,\n              -16.214674588248542\n            ],\n            [\n              -50.625,\n              -8.971897294083014\n            ],\n            [\n              -48.8671875,\n              -2.5040852618529215\n            ],\n            [\n              -48.3837890625,\n              -0.21972602392080884\n            ],\n            [\n              -51.591796875,\n              4.477856485570586\n            ],\n            [\n              -56.99707031249999,\n              6.053161295714067\n            ],\n            [\n              -60.8642578125,\n              8.624472107633936\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"99","issue":"1","noUsgsAuthors":false,"publicationDate":"2009-12-05","publicationStatus":"PW","contributors":{"authors":[{"text":"Cleveland, C.C.","contributorId":62387,"corporation":false,"usgs":true,"family":"Cleveland","given":"C.C.","email":"","affiliations":[],"preferred":false,"id":778715,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Houlton , B.Z. ","contributorId":221564,"corporation":false,"usgs":false,"family":"Houlton ","given":"B.Z. ","affiliations":[],"preferred":false,"id":778716,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Neill, C","contributorId":221565,"corporation":false,"usgs":false,"family":"Neill","given":"C","email":"","affiliations":[],"preferred":false,"id":778717,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Reed, Sasha C. 0000-0002-8597-8619 screed@usgs.gov","orcid":"https://orcid.org/0000-0002-8597-8619","contributorId":462,"corporation":false,"usgs":true,"family":"Reed","given":"Sasha","email":"screed@usgs.gov","middleInitial":"C.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":778718,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wang, Y","contributorId":221568,"corporation":false,"usgs":false,"family":"Wang","given":"Y","affiliations":[],"preferred":false,"id":778719,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Townsend, A.R.","contributorId":16631,"corporation":false,"usgs":true,"family":"Townsend","given":"A.R.","email":"","affiliations":[],"preferred":false,"id":778720,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70256005,"text":"70256005 - null - Simulation of the long term radiometric responses of the Terra MODIS and EO-1 ALI using Hyperion spectral responses over Railroad Valley Playa in Nevada (RVPN)","interactions":[],"lastModifiedDate":"2024-07-12T14:32:29.122156","indexId":"70256005","displayToPublicDate":"2010-11-04T09:23:35","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Simulation of the long term radiometric responses of the Terra MODIS and EO-1 ALI using Hyperion spectral responses over Railroad Valley Playa in Nevada (RVPN)","docAbstract":"<p><span>The Earth Observing-1 (EO-1) Hyperion instrument provides 220 spectral bands with wavelengths between 400 and 2500 nm at 30 m spatial resolution, which covers a 7.5 km by 100 km area on the ground. The EO-1 spacecraft has another multispectral sensor called the Advanced Land Imager (ALI), which has 10 spectral bands with wavelengths between 400 and 2350 nm at 30 m spatial resolution. The Moderate Resolution Imaging Spectroradiometer (MODIS) sensor onboard the Terra spacecraft was launched in Dec., 1999, and flies approximately 30 minutes behind EO-1. Nearsimultaneous observations from Terra MODIS, EO-1 ALI and Hyperion over a well characterized Railroad Valley Playa in Nevada (RVPN) target are chosen for this study. A uniform region of interest (ROI) within the playa within latitudes and longitudes of 38.48 and -115.71 to 38.53 and -115.66 was chosen for this analysis. A representation of the ground spectra during every near-simultaneous acquisition of MODIS and ALI is obtained using EO-1 Hyperion data. Using the EO-1 Hyperion derived top-of-atmosphere (TOA) reflectance profile along with the ALI and MODIS relative spectral responses (RSR), simulated reflectance for the matching band pairs is calculated. The Hyperion simulated TOA reflectance results are compared to the measured TOA reflectance trends of ALI and MODIS. The long-term measured versus simulated reflectance results are used to examine the relationships and calibration differences between the ALI and MODIS sensors.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of SPIE 7862, Earth observing missions and sensors: Development, implementation, and characterization","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Earth Observing Missions and Sensors: Development, Implementation, and Characterization","conferenceDate":"October 11-14, 2010","conferenceLocation":"Incheon, Republic of Korea","language":"English","publisher":"Society of Photo-Optical Instrumentation Engineers (SPIE)","doi":"10.1117/12.868963","usgsCitation":"Choi, T., Xiong, X., Angal, A., and Chander, G., Simulation of the long term radiometric responses of the Terra MODIS and EO-1 ALI using Hyperion spectral responses over Railroad Valley Playa in Nevada (RVPN), <i>in</i> Proceedings of SPIE 7862, Earth observing missions and sensors: Development, implementation, and characterization, v. 7862, Incheon, Republic of Korea, October 11-14, 2010, 78620H, 11 p., https://doi.org/10.1117/12.868963.","productDescription":"78620H, 11 p.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":431006,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7862","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Choi, Taeyoung","contributorId":146955,"corporation":false,"usgs":false,"family":"Choi","given":"Taeyoung","email":"","affiliations":[],"preferred":false,"id":906334,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Xiong, Xiaoxiong","contributorId":15088,"corporation":false,"usgs":true,"family":"Xiong","given":"Xiaoxiong","email":"","affiliations":[],"preferred":false,"id":906335,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Angal, Amit","contributorId":67394,"corporation":false,"usgs":true,"family":"Angal","given":"Amit","email":"","affiliations":[],"preferred":false,"id":906336,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chander, Gyanesh gchander@usgs.gov","contributorId":3013,"corporation":false,"usgs":true,"family":"Chander","given":"Gyanesh","email":"gchander@usgs.gov","affiliations":[],"preferred":true,"id":906337,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70241993,"text":"70241993 - null - Silurian-Devonian age and tectonic setting of the Connecticut Valley-Gaspé trough of Vermont using U-Pb SHRIMP analyses of detrital zircons","interactions":[],"lastModifiedDate":"2023-04-03T16:33:38.685074","indexId":"70241993","displayToPublicDate":"2010-05-01T10:43:49","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":732,"text":"American Journal of Science","active":true,"publicationSubtype":{"id":10}},"title":"Silurian-Devonian age and tectonic setting of the Connecticut Valley-Gaspé trough of Vermont using U-Pb SHRIMP analyses of detrital zircons","docAbstract":"<p>U-Pb SHRIMP ages of detrital zircons from metasedimentary rocks of the Connecticut Valley-Gaspe' trough in Vermont corroborate a Silurian-Devonian age of deposition for these strata and constrain their provenances. Ages of randomly selected detrital zircons obtained from quartzites within the Waits River and Gile Mountain Formations range from Archean to Devonian with Mesoproterozoic, Neoproterozoic, Ordovician, and Silurian age populations suggesting both eastern and western sources of the sediments. The two youngest single-grain detrital zircon ages from samples collected in the Waits River Formation are 418 <span>±</span> 7 and 415 <span>±</span> 2 Ma. The youngest single-grain detrital zircon age from the eastern part of the Gile Mountain Formation is 411 <span>±</span> 8. The youngest detrital zircons from the western portion of the Gile Mountain Formation comprise an age population with a weighted average of 409<span>±</span>5 Ma. These~409 Ma zircons are likely of volcanic origin, perhaps derived from the Piscataquis magmatic belt to the east. The absence of younger volcanic zircons in the coarser-grained eastern facies of the Gile Mountain Formation suggests the eastern sediments are older and were buried during Piscataquis volcanism and deposition in the west. </p><p>The shift in protoliths from calcareous silts and muds of the Waits River Formation to quartzo-feldspathic sands of the Gile Mountain Formation implies a change from a continental slope-like depositional environment to a near-shore or terrestrial environment of deposition. This change supports a transition in the nature of the basin from an intercontinental back-arc extensional setting to a foreland basin setting. Maximum depositional ages of sediments above and below this facies boundary constrain the timing of transition in basin style between about 415 and 411 Ma. Given the timing of the approaching Acadian wedge, this shift in basin style likely reflects westward migration of thrust sheets during the Acadian orogeny. The finegrained nature of the youngest silts, muds and turbidites suggests that sedimentation occurred in increasingly deeper water. The implied basin subsidence was likely caused by lithospheric flexure as the Acadian wedge approached from the east. The timing of this subsidence is constrained to be younger than the youngest zircons at about 409 Ma.</p>","doi":"10.2475/05.2010.01","usgsCitation":"McWilliams, C.K., Walsh, G.J., and Wintsch, R.P., Silurian-Devonian age and tectonic setting of the Connecticut Valley-Gaspé trough of Vermont using U-Pb SHRIMP analyses of detrital zircons: American Journal of Science, v. 310, no. 5, p. 325-363, https://doi.org/10.2475/05.2010.01.","productDescription":"39 p,","startPage":"325","endPage":"363","costCenters":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"links":[{"id":415084,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Vermont","otherGeospatial":"Connecticut Valley-Gaspé trough","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -73.0584464098593,\n              43.08244702843251\n            ],\n            [\n              -72.41618856372972,\n              43.07710622647042\n            ],\n            [\n              -72.34695793118665,\n              43.58931291576778\n            ],\n            [\n              -72.03970726311911,\n              44.05770856512157\n            ],\n            [\n              -72.02696782434163,\n              44.30460320930763\n            ],\n            [\n              -71.71664844560044,\n              44.40580442349673\n            ],\n            [\n              -71.52347555482625,\n              44.59219196351697\n            ],\n            [\n              -71.60497257872095,\n              44.788650957990455\n            ],\n            [\n              -71.48198767752757,\n              44.992641539788565\n            ],\n            [\n              -73.04861643956963,\n              45.000876525670435\n            ],\n            [\n              -73.0584464098593,\n              43.08244702843251\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"310","issue":"5","noUsgsAuthors":false,"publicationDate":"2010-08-11","publicationStatus":"PW","contributors":{"authors":[{"text":"McWilliams, C. K.","contributorId":49981,"corporation":false,"usgs":false,"family":"McWilliams","given":"C.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":868458,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Walsh, Gregory J. 0000-0003-4264-8836 gwalsh@usgs.gov","orcid":"https://orcid.org/0000-0003-4264-8836","contributorId":873,"corporation":false,"usgs":true,"family":"Walsh","given":"Gregory","email":"gwalsh@usgs.gov","middleInitial":"J.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":868459,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wintsch, Robert P.","contributorId":39807,"corporation":false,"usgs":true,"family":"Wintsch","given":"Robert","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":868460,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70273254,"text":"70273254 - null - An empirical algorithm for estimating agricultural and riparian evapotranspiration using MODIS Enhanced Vegetation Index and ground measurements of ET. II. Application to the lower Colorado River, U.S.","interactions":[],"lastModifiedDate":"2025-12-23T16:00:36.737075","indexId":"70273254","displayToPublicDate":"2009-11-20T09:55:13","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3250,"text":"Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"An empirical algorithm for estimating agricultural and riparian evapotranspiration using MODIS Enhanced Vegetation Index and ground measurements of ET. II. Application to the lower Colorado River, U.S.","docAbstract":"<p><span>Large quantities of water are consumed by irrigated crops and riparian vegetation in western U.S. irrigation districts. Remote sensing methods for estimating evaporative water losses by soil and vegetation (evapotranspiration, ET) over wide river stretches are needed to allocate water for agricultural and environmental needs. We used the Enhanced Vegetation Index (EVI) from MODIS sensors on the Terra satellite to scale ET over agricultural and riparian areas along the Lower Colorado River in the southwestern U.S., using a linear regression equation between ET of riparian plants and alfalfa measured on the ground, and meteorological and remote sensing data, with an error or uncertainty of about 20%. The algorithm was applied to irrigation districts and riparian areas from Lake Mead to the U.S./Mexico border. The results for agricultural crops were similar to results produced by crop coefficients developed for the irrigation districts along the river. However, riparian ET was only half as great as crop coefficient estimates set by expert opinion, equal to about 40% of reference crop evapotranspiration. Based on reported acreages in 2007, agricultural crops (146,473 ha) consumed 2.2 × 10</span><sup>9</sup><span>&nbsp;m</span><sup>3</sup><span>&nbsp;yr</span><sup>−1</sup><span>&nbsp;of water. All riparian shrubs and trees (47,014 ha) consumed 3.8 × 10</span><sup>8</sup><span>&nbsp;m</span><sup>3</sup><span>&nbsp;yr</span><sup>−1</sup><span>, of which saltcedar, the dominant riparian shrub (25,044 ha), consumed 1.8 × 10</span><sup>8</sup><span>&nbsp;m</span><sup>3</sup><span>&nbsp;yr</span><sup>−1</sup><span>, about 1% of the annual flow of the river. This method could supplement existing protocols for estimating ET by providing an estimate based on the actual state of the canopy as determined by frequent-return satellite data.</span></p>","language":"English","publisher":"MDPI","doi":"10.3390/rs1041125","usgsCitation":"Murray, R.S., Nagler, P.L., Morino, K., and Glenn, E., An empirical algorithm for estimating agricultural and riparian evapotranspiration using MODIS Enhanced Vegetation Index and ground measurements of ET. II. Application to the lower Colorado River, U.S.: Remote Sensing, v. 1, no. 4, p. 1125-1138, https://doi.org/10.3390/rs1041125.","productDescription":"14 p.","startPage":"1125","endPage":"1138","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":498057,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3390/rs1041125","text":"Publisher Index Page"},{"id":497940,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona, California, Nevada","otherGeospatial":"lower Colorado River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -110.8813192791255,\n              36.97080066185404\n            ],\n            [\n              -116.96456312629869,\n              36.97080066185404\n            ],\n            [\n              -116.96456312629869,\n              32.699643980926254\n            ],\n            [\n              -110.8813192791255,\n              32.699643980926254\n            ],\n            [\n              -110.8813192791255,\n              36.97080066185404\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"1","issue":"4","noUsgsAuthors":false,"publicationDate":"2009-11-20","publicationStatus":"PW","contributors":{"authors":[{"text":"Murray, R. Scott","contributorId":64468,"corporation":false,"usgs":true,"family":"Murray","given":"R.","email":"","middleInitial":"Scott","affiliations":[],"preferred":false,"id":952887,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nagler, Pamela L. 0000-0003-0674-103X pnagler@usgs.gov","orcid":"https://orcid.org/0000-0003-0674-103X","contributorId":1398,"corporation":false,"usgs":true,"family":"Nagler","given":"Pamela","email":"pnagler@usgs.gov","middleInitial":"L.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":952888,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Morino, Kiyomi","contributorId":78210,"corporation":false,"usgs":true,"family":"Morino","given":"Kiyomi","email":"","affiliations":[],"preferred":false,"id":952889,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Glenn, Edward P.","contributorId":56542,"corporation":false,"usgs":false,"family":"Glenn","given":"Edward P.","affiliations":[{"id":13060,"text":"Department of Soil, Water and Environmental Science, University of Arizona","active":true,"usgs":false}],"preferred":false,"id":952890,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70273164,"text":"70273164 - null - Synthesis of ground and remote sensing data for monitoring ecosystem functions in the Colorado River Delta, Mexico","interactions":[],"lastModifiedDate":"2025-12-17T16:26:52.40872","indexId":"70273164","displayToPublicDate":"2009-03-27T10:18:01","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3254,"text":"Remote Sensing of Environment","printIssn":"0034-4257","active":true,"publicationSubtype":{"id":10}},"title":"Synthesis of ground and remote sensing data for monitoring ecosystem functions in the Colorado River Delta, Mexico","docAbstract":"<p><span>The delta of the Colorado River in&nbsp;Mexico&nbsp;supports a rich mix of estuarine, wetland and&nbsp;</span>riparian ecosystems<span>&nbsp;that provide habitat for over 350 species of birds as well as fish,&nbsp;marine mammals, and other wildlife. An important part of the delta ecosystem is the riparian corridor, which is supported by agricultural return flows and waste spills of water originating in the&nbsp;U.S.&nbsp;and Mexico. These flows may be curtailed in the future due to&nbsp;climate change&nbsp;and changing land use practices (out-of-basin water transfers, increased agricultural efficiency, and more optimal management of dams) in the U.S. and Mexico, and resource managers need to monitor the effects of their water management practices on these ecosystems. We developed ground-validated,&nbsp;remote sensing&nbsp;methods to monitor the vegetation status, habitat value, and water use of wetland and riparian ecosystems using multi-temporal, multi-resolution images. The integrated methodology allowed us to project species composition, leaf area index, fractional cover, habitat value, and&nbsp;evapotranspiration&nbsp;over seasons and years throughout the delta, in response to variable water flows from the U.S. to Mexico. Waste spills of water from the U.S. have regenerated native cottonwood and willow trees in the riparian corridor and created backwater and marsh areas that support birds and other wildlife. However, the main source of water supporting the&nbsp;riparian vegetation&nbsp;is the regional aquifer recharged by underflow from U.S. and Mexico&nbsp;irrigation districts. Native trees have a short half-life in the&nbsp;riparian zone&nbsp;due to human-set fires and harvesting for timber. Active management, monitoring, and restoration programs are needed to maintain the habitat value of this ecosystem for the future.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.rse.2008.06.018","usgsCitation":"Nagler, P.L., Glenn, E., and Hinojosa-Huera, O., Synthesis of ground and remote sensing data for monitoring ecosystem functions in the Colorado River Delta, Mexico: Remote Sensing of Environment, v. 113, no. 7, p. 1473-1485, https://doi.org/10.1016/j.rse.2008.06.018.","productDescription":"13 p.","startPage":"1473","endPage":"1485","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":497645,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mexico","otherGeospatial":"Colorado River Delta","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -114.7360144715991,\n              32.519626708379434\n            ],\n            [\n              -115.38432903382771,\n              32.488742820889456\n            ],\n            [\n              -115.13525903251964,\n              31.663178387787312\n            ],\n            [\n              -114.51990961752253,\n              31.644472894515545\n            ],\n            [\n              -114.7360144715991,\n              32.519626708379434\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"113","issue":"7","noUsgsAuthors":false,"publicationDate":"2009-03-27","publicationStatus":"PW","contributors":{"authors":[{"text":"Nagler, Pamela L. 0000-0003-0674-103X pnagler@usgs.gov","orcid":"https://orcid.org/0000-0003-0674-103X","contributorId":1398,"corporation":false,"usgs":true,"family":"Nagler","given":"Pamela","email":"pnagler@usgs.gov","middleInitial":"L.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":952561,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Glenn, Edward P.","contributorId":56542,"corporation":false,"usgs":false,"family":"Glenn","given":"Edward P.","affiliations":[{"id":13060,"text":"Department of Soil, Water and Environmental Science, University of Arizona","active":true,"usgs":false}],"preferred":false,"id":952562,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hinojosa-Huera, Osvel","contributorId":339751,"corporation":false,"usgs":false,"family":"Hinojosa-Huera","given":"Osvel","email":"","affiliations":[{"id":24640,"text":"Pronatura Noroeste","active":true,"usgs":false}],"preferred":false,"id":952563,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70236409,"text":"70236409 - null - New approaches to stability analysis of steep coastal bluffs","interactions":[],"lastModifiedDate":"2022-09-06T15:28:14.694506","indexId":"70236409","displayToPublicDate":"2008-12-31T10:19:44","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"New approaches to stability analysis of steep coastal bluffs","docAbstract":"<p><span>We present a discussion on the limitations and needed improvements for existing slope stability analysis methods to accurately model steep coastal bluff failures resulting from both direct wave action at the toe in weakly cemented sands and precipitation-induced seepage failures in moderately cemented sands. Using a case-study detailing over 5 years of observations of coastal bluff erosion and landsliding in northern California, we show that existing analysis methods over-predict the observed crest retreat and mis-predict the field-measured failure geometry. In response, we propose new analysis methods for evaluating stability in these settings.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of geocongress 2008","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"GeoCongress 2008","conferenceDate":"Mar 9-12, 2008","conferenceLocation":"New Orleans, LA","language":"English","publisher":"ASCE","doi":"10.1061/40971(310)63","usgsCitation":"Collins, B.D., and Sitar, N., New approaches to stability analysis of steep coastal bluffs, <i>in</i> Proceedings of geocongress 2008, New Orleans, LA, Mar 9-12, 2008, p. 507-513, https://doi.org/10.1061/40971(310)63.","productDescription":"7 p.","startPage":"507","endPage":"513","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":406233,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2012-06-20","publicationStatus":"PW","contributors":{"authors":[{"text":"Collins, Brian D. 0000-0003-4881-5359 bcollins@usgs.gov","orcid":"https://orcid.org/0000-0003-4881-5359","contributorId":149278,"corporation":false,"usgs":true,"family":"Collins","given":"Brian","email":"bcollins@usgs.gov","middleInitial":"D.","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":850914,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sitar, Nicholas","contributorId":42253,"corporation":false,"usgs":true,"family":"Sitar","given":"Nicholas","email":"","affiliations":[],"preferred":false,"id":850915,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70236406,"text":"70236406 - null - Modeling of wave driven circulation and water quality in nearshore environments","interactions":[],"lastModifiedDate":"2022-09-06T15:07:20.521719","indexId":"70236406","displayToPublicDate":"2008-12-31T10:02:21","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Modeling of wave driven circulation and water quality in nearshore environments","docAbstract":"<p><span>In order to investigate the effects of nearshore discharges of water quality degrading substances and bacteria in coastal environments, models capable of predicting nearshore circulation due to local wave and tide conditions are required. One of the larger challenges to nearshore coastal modeling is accurately reproducing nearshore circulation due to wave action. Local wave action not only drives circulation through processes such as longshore transport and rip currents, but also contributes significantly to the mixing of water quality constituents. In the present work, a wave model was used to calculate radiation shear stresses and dissipation due to wave action. The shear stresses and dissipation were incorporated into a hydrodynamic model to force circulation in the nearshore environment. The model was applied to a site in Santa Cruz, CA where site specific current data was available. The model reproduces the nearshore current structure observed in the region and was used to study the transport of dredge disposal plumes in the region which could have deleterious effects on local beaches. This presentation will outline the nearshore circulation model development and application.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the 2008 world environmental and water resources congress","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"World Environmental and Water Resources Congress 2008","conferenceDate":"May 12-16, 2008","conferenceLocation":"Honolulu, HI","language":"English","publisher":"ASCE","doi":"10.1061/9780784409763","usgsCitation":"Jones, C., and Angster, S.J., Modeling of wave driven circulation and water quality in nearshore environments, <i>in</i> Proceedings of the 2008 world environmental and water resources congress, Honolulu, HI, May 12-16, 2008, 10 p., https://doi.org/10.1061/9780784409763.","productDescription":"10 p.","costCenters":[],"links":[{"id":406231,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2012-04-26","publicationStatus":"PW","contributors":{"authors":[{"text":"Jones, Craig","contributorId":208632,"corporation":false,"usgs":false,"family":"Jones","given":"Craig","affiliations":[{"id":37853,"text":"Integral Constulting Inc., Santa Cruz, California, UNITED STATES","active":true,"usgs":false}],"preferred":false,"id":850908,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Angster, Stephen J. 0000-0001-9250-8415 sangster@usgs.gov","orcid":"https://orcid.org/0000-0001-9250-8415","contributorId":3885,"corporation":false,"usgs":true,"family":"Angster","given":"Stephen","email":"sangster@usgs.gov","middleInitial":"J.","affiliations":[],"preferred":true,"id":850909,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70206320,"text":"70206320 - null - Mantle xenocrysts from the Masontown, Pennsylvania (USA) kimberlite: An ordinary mantle with Si-enriched spinels ","interactions":[],"lastModifiedDate":"2019-10-31T07:44:45","indexId":"70206320","displayToPublicDate":"2008-10-30T11:19:45","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":18,"text":"Abstract or summary"},"title":"Mantle xenocrysts from the Masontown, Pennsylvania (USA) kimberlite: An ordinary mantle with Si-enriched spinels ","docAbstract":"<p>No abstract available.&nbsp;</p>","conferenceTitle":"9th international kimberlite conference (9IKC)","conferenceDate":"August 10-15, 2008","conferenceLocation":"Frankfurt, Germany","language":"English","usgsCitation":"Schulze, D., and Hearn, B.C., Mantle xenocrysts from the Masontown, Pennsylvania (USA) kimberlite: An ordinary mantle with Si-enriched spinels , 9th international kimberlite conference (9IKC), v. 9, Frankfurt, Germany, August 10-15, 2008.","productDescription":"A-00312, 1 p.","startPage":"1","costCenters":[],"links":[{"id":368737,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"9","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Schulze, D.J.","contributorId":18549,"corporation":false,"usgs":true,"family":"Schulze","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":774140,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hearn, B. Carter chearn@usgs.gov","contributorId":189844,"corporation":false,"usgs":true,"family":"Hearn","given":"B.","email":"chearn@usgs.gov","middleInitial":"Carter","affiliations":[],"preferred":true,"id":774141,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70273251,"text":"70273251 - null - Relationship between remotely-sensed vegetation indices, canopy attributes and plant physiological processes: What vegetation indices can and cannot tell us about the landscape","interactions":[],"lastModifiedDate":"2025-12-23T15:33:23.073849","indexId":"70273251","displayToPublicDate":"2008-03-28T09:13:57","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3380,"text":"Sensors","active":true,"publicationSubtype":{"id":10}},"title":"Relationship between remotely-sensed vegetation indices, canopy attributes and plant physiological processes: What vegetation indices can and cannot tell us about the landscape","docAbstract":"<p><span>Vegetation indices (VIs) are among the oldest tools in remote sensing studies. Although many variations exist, most of them ratio the reflection of light in the red and NIR sections of the spectrum to separate the landscape into water, soil, and vegetation. Theoretical analyses and field studies have shown that VIs are near-linearly related to photosynthetically active radiation absorbed by a plant canopy, and therefore to light-dependent physiological processes, such as photosynthesis, occurring in the upper canopy. Practical studies have used time-series VIs to measure primary production and evapotranspiration, but these are limited in accuracy to that of the data used in ground truthing or calibrating the models used. VIs are also used to estimate a wide variety of other canopy attributes that are used in Soil-Vegetation-Atmosphere Transfer (SVAT), Surface Energy Balance (SEB), and Global Climate Models (GCM). These attributes include fractional vegetation cover, leaf area index, roughness lengths for turbulent transfer, emissivity and albedo. However, VIs often exhibit only moderate, non-linear relationships to these canopy attributes, compromising the accuracy of the models. We use case studies to illustrate the use and misuse of VIs, and argue for using VIs most simply as a measurement of canopy light absorption rather than as a surrogate for detailed features of canopy architecture. Used this way, VIs are compatible with “Big Leaf” SVAT and GCMs that assume that canopy carbon and moisture fluxes have the same relative response to the environment as any single leaf, simplifying the task of modeling complex landscapes.</span></p>","language":"English","publisher":"MDPI","doi":"10.3390/s8042136","usgsCitation":"Glenn, E.P., Huete, A.R., Nagler, P.L., and Nelson, S.G., Relationship between remotely-sensed vegetation indices, canopy attributes and plant physiological processes: What vegetation indices can and cannot tell us about the landscape: Sensors, v. 8, no. 4, p. 2136-2160, https://doi.org/10.3390/s8042136.","productDescription":"25 p.","startPage":"2136","endPage":"2160","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":498055,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3390/s8042136","text":"Publisher Index Page"},{"id":497937,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona","otherGeospatial":"Colorado River, Havasu National Wildlife Refuge","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -114.46320466185165,\n              34.705992498069406\n            ],\n            [\n              -114.398916590966,\n              34.73603912838132\n            ],\n            [\n              -114.53190465917093,\n              34.97188700395952\n            ],\n            [\n              -114.64409364561838,\n              34.905752361774034\n            ],\n            [\n              -114.54892208969932,\n              34.76089704626571\n            ],\n            [\n              -114.46320466185165,\n              34.705992498069406\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"8","issue":"4","noUsgsAuthors":false,"publicationDate":"2008-03-28","publicationStatus":"PW","contributors":{"authors":[{"text":"Glenn, Edward P.","contributorId":19289,"corporation":false,"usgs":true,"family":"Glenn","given":"Edward","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":952873,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Huete, Alfredo R","contributorId":243589,"corporation":false,"usgs":false,"family":"Huete","given":"Alfredo","email":"","middleInitial":"R","affiliations":[{"id":48742,"text":"School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia","active":true,"usgs":false}],"preferred":false,"id":952874,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nagler, Pamela L. 0000-0003-0674-103X pnagler@usgs.gov","orcid":"https://orcid.org/0000-0003-0674-103X","contributorId":1398,"corporation":false,"usgs":true,"family":"Nagler","given":"Pamela","email":"pnagler@usgs.gov","middleInitial":"L.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":952875,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nelson, Stephen G.","contributorId":174719,"corporation":false,"usgs":false,"family":"Nelson","given":"Stephen","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":952876,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70273252,"text":"70273252 - null - Reconciling environmental and flood control goals on an arid-zone river: Case study of the Limitrophe Region of the lower Colorado River in the United States and Mexico","interactions":[],"lastModifiedDate":"2025-12-23T15:47:30.467798","indexId":"70273252","displayToPublicDate":"2008-03-01T09:39:49","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1547,"text":"Environmental Management","active":true,"publicationSubtype":{"id":10}},"title":"Reconciling environmental and flood control goals on an arid-zone river: Case study of the Limitrophe Region of the lower Colorado River in the United States and Mexico","docAbstract":"<p><span>Arid zone rivers have highly variable flow rates, and flood control projects are needed to protect adjacent property from flood damage. On the other hand, riparian corridors provide important wildlife habitat, especially for birds, and riparian vegetation is adapted to the natural variability in flows on these rivers. While environmental and flood control goals might appear to be at odds, we show that both goals can be accommodated in the Limitrophe Region (the shared border between the United States and Mexico) on the Lower Colorado River. In 1999, the International Boundary and Water Commission proposed a routine maintenance project to clear vegetation and create a pilot channel within the Limitrophe Region to improve flow capacity and delineate the border. In 2000, however, Minute 306 to the international water treaty was adopted, which calls for consideration of environmental effects of IBWC actions. We conducted vegetation and bird surveys within the Limitrophe and found that this river segment is unusually rich in native cottonwood and willow trees, marsh habitat, and resident and migratory birds compared to flow-regulated segments of river. A flood-frequency analysis showed that the existing levee system can easily contain a 100 year flood even if vegetation is not removed, and the existing braided channel system has greater carrying capacity than the proposed pilot channel.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s00267-007-9056-4","usgsCitation":"Glenn, E.P., Hucklebridge, K., Hinojosa-Huerta, O., Nagler, P.L., and Pitt, J., Reconciling environmental and flood control goals on an arid-zone river: Case study of the Limitrophe Region of the lower Colorado River in the United States and Mexico: Environmental Management, v. 41, p. 322-335, https://doi.org/10.1007/s00267-007-9056-4.","productDescription":"14 p.","startPage":"322","endPage":"335","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":497938,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mexico, United States","otherGeospatial":"lower Colorado River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -113.84952634861096,\n              34.55176370207661\n            ],\n            [\n              -115.2034771735304,\n              34.55176370207661\n            ],\n            [\n              -115.2034771735304,\n              31.579861300988156\n            ],\n            [\n              -113.84952634861096,\n              31.579861300988156\n            ],\n            [\n              -113.84952634861096,\n              34.55176370207661\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"41","noUsgsAuthors":false,"publicationDate":"2008-01-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Glenn, Edward P.","contributorId":19289,"corporation":false,"usgs":true,"family":"Glenn","given":"Edward","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":952877,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hucklebridge, Kate","contributorId":364563,"corporation":false,"usgs":false,"family":"Hucklebridge","given":"Kate","affiliations":[],"preferred":false,"id":952878,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hinojosa-Huerta, Osvel","contributorId":195177,"corporation":false,"usgs":false,"family":"Hinojosa-Huerta","given":"Osvel","email":"","affiliations":[],"preferred":false,"id":952879,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nagler, Pamela L. 0000-0003-0674-103X pnagler@usgs.gov","orcid":"https://orcid.org/0000-0003-0674-103X","contributorId":1398,"corporation":false,"usgs":true,"family":"Nagler","given":"Pamela","email":"pnagler@usgs.gov","middleInitial":"L.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":952880,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pitt, Jennifer","contributorId":255277,"corporation":false,"usgs":false,"family":"Pitt","given":"Jennifer","affiliations":[{"id":51507,"text":"Audubon","active":true,"usgs":false}],"preferred":false,"id":952881,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70206199,"text":"70206199 - null - Cross-borehole flow tests and insights into hydraulic connections in fractured mudstone and sandstone","interactions":[],"lastModifiedDate":"2020-03-10T14:58:10","indexId":"70206199","displayToPublicDate":"2007-12-31T15:11:34","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Cross-borehole flow tests and insights into hydraulic connections in fractured mudstone and sandstone","docAbstract":"<p>Cross-borehole flow tests provided insights into hydraulic connections in fractured and dipping mudstone and sandstone that were consistent with the lithostratigraphic and structural framework of a VOCcontaminated bedrock research site in west-central New Jersey. Two cross-borehole flow tests were completed. Each test involved measurement and analysis of transient flow in a newly installed deep corehole with a long open interval during short-term pumping and recovery in an adjacent shallow well with a short open interval. The cross-borehole flow test in the mudstone identified a hydraulic connection through a dipping fractured bed between the pumped interval in the well and a flow zone at an intermediate depth in the corehole. The presence of a hydraulic connection between the pumped well and the corehole was not obvious because the water-level response in the corehole was dominated by a shallow zone of high transmissivity, which was hydraulically isolated from the pumped interval. In the sandstone, the cross-borehole flow test identified a hydraulic connection along dipping fractured beds as well as a connection to a deep high-angle fracture that cuts across bedding. These results suggest that application of cross-borehole flow tests at other contaminated fractured-bedrock sites could provide insights into hydraulic connections useful the design and implementation of monitoring and remediation programs. </p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Symposium on the Application of Geophysics to Engineering and Environmental Problems","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Symposium on the Application of Geophysics to Engineering and Environmental Problems","conferenceDate":"April 1-5, 2007","conferenceLocation":"Denver, CO","language":"English","usgsCitation":"Williams, J., Lacombe, P., Johnson, C.D., and Paillet, F.L., Cross-borehole flow tests and insights into hydraulic connections in fractured mudstone and sandstone, <i>in</i> Symposium on the Application of Geophysics to Engineering and Environmental Problems, Denver, CO, April 1-5, 2007, p. 1140-1152.","productDescription":"12 p.","startPage":"1140","endPage":"1152","costCenters":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true},{"id":474,"text":"New York Water Science Center","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"links":[{"id":368573,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":368572,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://water.usgs.gov/ogw/bgas/publications/SAGEEP2007-Williams/SAGEEP2007-Williams.pdf"}],"country":"United States","state":"New Jersey","county":"Mercer 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John H. 0000-0002-6054-6908 jhwillia@usgs.gov","orcid":"https://orcid.org/0000-0002-6054-6908","contributorId":1553,"corporation":false,"usgs":true,"family":"Williams","given":"John","email":"jhwillia@usgs.gov","middleInitial":"H.","affiliations":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"preferred":true,"id":773829,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lacombe, Pierre 0000-0002-9596-7622 placombe@usgs.gov","orcid":"https://orcid.org/0000-0002-9596-7622","contributorId":152113,"corporation":false,"usgs":true,"family":"Lacombe","given":"Pierre","email":"placombe@usgs.gov","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":true,"id":773830,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, Carole D. 0000-0001-6941-1578 cjohnson@usgs.gov","orcid":"https://orcid.org/0000-0001-6941-1578","contributorId":1891,"corporation":false,"usgs":true,"family":"Johnson","given":"Carole","email":"cjohnson@usgs.gov","middleInitial":"D.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":773831,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Paillet, Frederick L.","contributorId":63820,"corporation":false,"usgs":true,"family":"Paillet","given":"Frederick","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":773832,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70259123,"text":"70259123 - null - Comparative analysis of GPP products estimated from an empirical model and MODIS","interactions":[],"lastModifiedDate":"2024-09-27T15:19:00.857652","indexId":"70259123","displayToPublicDate":"2006-12-01T10:12:44","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Comparative analysis of GPP products estimated from an empirical model and MODIS","docAbstract":"<p>Carbon-cycle models have uncertainties associated with data inputs, parameters, and model algorithms. The prerequisite for an applicable model is that it should perform at an acceptable level of accuracy and uncertainties should be documented. In this study, we validated the gross primary productivity (GPP) data from a piecewise regression (PWR) model and the MODIS GPP model at five grassland flux towers in the Northern Great Plains. The results showed a good agreement of GPP values (agreement coefficient <i>d</i> = 0.88–0.98) among PWR, MODIS, and tower measurements at Fort Peck, Mandan, and Cheyenne sites; but MODIS GPP did not agree well (<i>d</i> = 0.62–0.79) with tower measurements at Miles City and Lethbridge sites. Additionally, we compared PWR GPP and MODIS GPP for grasslands in the entire study area. We found that the PWR GPP was lower than or similar to the MODIS GPP in the east and higher in the west and south. We explored possible factors that may cause the GPP difference in spatial distribution between the two models. </p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Global priorities in land remote sensing","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"William T. Pecora Memorial Symposium on Remote Sensing, 16th","conferenceDate":"October 23-27, 2005","conferenceLocation":"Sioux Falls, SD","language":"English","publisher":"ASPRS","usgsCitation":"Zhang, L., Wylie, B.K., Loveland, T., and Ji, L., Comparative analysis of GPP products estimated from an empirical model and MODIS, <i>in</i> Global priorities in land remote sensing, Sioux Falls, SD, October 23-27, 2005, 12 p.","productDescription":"12 p.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":462337,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.asprs.org/Conference-Proceedings.html","linkFileType":{"id":5,"text":"html"}},{"id":462338,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Zhang, Li","contributorId":222540,"corporation":false,"usgs":false,"family":"Zhang","given":"Li","email":"","affiliations":[],"preferred":false,"id":914249,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wylie, Bruce K. 0000-0002-7374-1083 wylie@usgs.gov","orcid":"https://orcid.org/0000-0002-7374-1083","contributorId":750,"corporation":false,"usgs":true,"family":"Wylie","given":"Bruce","email":"wylie@usgs.gov","middleInitial":"K.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true},{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"preferred":true,"id":914250,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Loveland, Thomas 0000-0003-3114-6646 loveland@usgs.gov","orcid":"https://orcid.org/0000-0003-3114-6646","contributorId":140611,"corporation":false,"usgs":true,"family":"Loveland","given":"Thomas","email":"loveland@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":914251,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ji, Lei 0000-0002-6133-1036 lji@usgs.gov","orcid":"https://orcid.org/0000-0002-6133-1036","contributorId":139587,"corporation":false,"usgs":true,"family":"Ji","given":"Lei","email":"lji@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true},{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"preferred":true,"id":914252,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70205983,"text":"70205983 - null - Characterizing the two-dimensional thermal conductivity distribution in a sand and gravel aquifer","interactions":[],"lastModifiedDate":"2019-10-14T14:38:34","indexId":"70205983","displayToPublicDate":"2006-10-14T14:38:13","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3420,"text":"Soil Science Society of America Journal","active":true,"publicationSubtype":{"id":10}},"title":"Characterizing the two-dimensional thermal conductivity distribution in a sand and gravel aquifer","docAbstract":"<p><span>Both hydrologic and thermal transport properties play a significant role in the movement of heat through permeable sedimentary material; however, the thermal conductivity is rarely characterized in detailed spatial resolution. As part of a study of the movement of thermal plumes through a sand and gravel aquifer, we have constructed a two-dimensional profile of thermal conductivity. This work consisted of: (i) measuring the thermal conductivity of the soil solids, λ</span><sub>s</sub><span>, for the main stratigraphic units using the steady-state divided-bar apparatus and estimating conductivity from mineral composition; (ii) measuring the volumetric water content and porosity using crosshole ground-penetrating radar; (iii) evaluating four models used to predict the apparent thermal conductivity, λ, of variably saturated soils and selecting the best model using the information-theoretic approach, (iv) calculating the λ field on a 0.25-m square cell grid using measured data and the selected model, and (v) simulating thermal transport within the two-dimensional domain using a finite element numerical model. The apparent thermal conductivity in the saturated aquifer ranges from 2.14 to 2.69 W m</span><sup>−1</sup><span>&nbsp;K</span><sup>−1</sup><span>&nbsp;with a mean of 2.42 W m</span><sup>−1</sup><span>&nbsp;K</span><sup>−1</sup><span>&nbsp;Numerical simulations show that the heterogeneous thermal conductivity field results in increased thermal dispersion that is most pronounced at the plume front. Our values for λ and λ</span><sub>s</sub><span>&nbsp;may be used for glacial soils with similar mineralogy and texture. Our methods may also be used at other sites to construct the thermal conductivity distribution.</span></p>","doi":"10.2136/sssaj2005.0293","usgsCitation":"Markle, J.M., Schincariol, R.A., Sass, J., and Molson, J.W., Characterizing the two-dimensional thermal conductivity distribution in a sand and gravel aquifer: Soil Science Society of America Journal, v. 70, no. 4, p. 1281-1294, https://doi.org/10.2136/sssaj2005.0293.","productDescription":"14 p.","startPage":"1281","endPage":"1294","costCenters":[],"links":[{"id":368310,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada","state":"Ontario","otherGeospatial":"Tricks Creek Watershed ","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -82.0458984375,\n              43.52266348752663\n            ],\n            [\n              -81.6998291015625,\n              43.52266348752663\n            ],\n            [\n              -81.6998291015625,\n              43.94537239244209\n            ],\n            [\n              -82.0458984375,\n              43.94537239244209\n            ],\n            [\n              -82.0458984375,\n              43.52266348752663\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"70","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Markle, Jeff M.","contributorId":219782,"corporation":false,"usgs":false,"family":"Markle","given":"Jeff","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":773164,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schincariol, Robert A.","contributorId":219783,"corporation":false,"usgs":false,"family":"Schincariol","given":"Robert","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":773165,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sass, J.H.","contributorId":70749,"corporation":false,"usgs":true,"family":"Sass","given":"J.H.","email":"","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":773166,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Molson, John W.","contributorId":219784,"corporation":false,"usgs":false,"family":"Molson","given":"John","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":773167,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70248281,"text":"70248281 - null - Scouting craton’s edge in Paleo-Pacific Gondwana","interactions":[],"lastModifiedDate":"2023-09-06T20:12:30.474783","indexId":"70248281","displayToPublicDate":"2006-01-01T14:47:51","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"4.1","title":"Scouting craton’s edge in Paleo-Pacific Gondwana","docAbstract":"<p><span>The geology of the ice-covered interior of the East Antarctic shield is completely unknown; inferences about its composition and history are based on extrapolating scant outcrops from the coast inland. Although the shield is clearly composite in nature, a large part of its interior has been represented by a single Precambrian block, termed the Mawson block, that includes the Archean-Mesoproterozoic Gawler and Curnamona cratons of Australia. In Australia, the Mawson block is bounded on the east by Neoproterozoic sedimentary rocks and the superimposed early Paleozoic Delamerian Orogen, marked by curvilinear belts of arc plutons, and on the west by the unexposed Coompana block and Mesoproterozoic Albany-Fraser mobile belt. In Antarctica, these crustal elements are inferred to extend across Wilkes Land and south to the Miller Range region. Aero- and satellite magnetic data provide a means to see through the ice, helping to elucidate the broad composition of the shield. Rocks of the Mawson block in Australia produce distinctive magnetic anomalies; Paleoproterozoic granites and Meso- to Neoproterozoic mafic igneous rocks are associated with high-amplitude, broad-wavelength positive aero- and satellite-magnetic anomalies. The same types of magnetic anomalies can be traced to ice-covered Wilkes Land, Antarctica, and are interpreted to signify similar rocks. However, the diagnostic satellite magnetic high ends ∼800 km south of the Antarctic coast, suggesting that the Mawson block is smaller than first proposed and that the remaining East Antarctic shield is composed of several Precambrian crustal blocks of largely undetermined composition and age. Nonetheless, the coincident eastern borders of these magnetic highs and high seismic-velocity anomalies characteristic of the Precambrian shield, together define the edge of thick cratonic lithosphere. East of this boundary, magnetic lows are explained by magnetite-poor upper Neoproterozoic and lower Paleozoic sedimentary rocks, and their metamorphic equivalents, which crop out discontinuously along the Ross margin of Antarctica and in eastern Australia. These rocks are inferred to overlie a Neoproterozoic rift margin, which transects older basement provinces. The coincidence of this cratonic rift boundary with the western limit of Paleozoic and Jurassic magmatism suggests that, although tectonically modified by younger events, the composite Antarctic-Australian shield comprised thick lithosphere that was not penetrated by Paleozoic and younger convergent-margin magmas.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Antarctica: Contributions to global earth sciences","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Springer","doi":"10.1007/3-540-32934-X_20","usgsCitation":"Finn, C.A., Goodge, J.W., Damaske, D., and Fanning, C.M., Scouting craton’s edge in Paleo-Pacific Gondwana, chap. 4.1 <i>of</i> Antarctica: Contributions to global earth sciences, p. 165-173, https://doi.org/10.1007/3-540-32934-X_20.","productDescription":"9 p.","startPage":"165","endPage":"173","costCenters":[],"links":[{"id":420584,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Antarctica, Gondwana","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              106.88469524334846,\n              -57.49514229065598\n            ],\n            [\n              106.88469524334846,\n              -78.93509637484914\n            ],\n            [\n              164.3416785133088,\n              -78.93509637484914\n            ],\n            [\n              164.3416785133088,\n              -57.49514229065598\n            ],\n            [\n              106.88469524334846,\n              -57.49514229065598\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"editors":[{"text":"Futterer, Dieter Karl","contributorId":279857,"corporation":false,"usgs":false,"family":"Futterer","given":"Dieter","email":"","middleInitial":"Karl","affiliations":[],"preferred":false,"id":882257,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Kleinschmidt, Georg","contributorId":26968,"corporation":false,"usgs":true,"family":"Kleinschmidt","given":"Georg","email":"","affiliations":[],"preferred":false,"id":882258,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Miller, Hubert","contributorId":328909,"corporation":false,"usgs":false,"family":"Miller","given":"Hubert","email":"","affiliations":[],"preferred":false,"id":882259,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Tessensohn, Franz","contributorId":27196,"corporation":false,"usgs":true,"family":"Tessensohn","given":"Franz","email":"","affiliations":[],"preferred":false,"id":882260,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Finn, Carol A. 0000-0002-6178-0405 cfinn@usgs.gov","orcid":"https://orcid.org/0000-0002-6178-0405","contributorId":1326,"corporation":false,"usgs":true,"family":"Finn","given":"Carol","email":"cfinn@usgs.gov","middleInitial":"A.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":882253,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Goodge, John W.","contributorId":20414,"corporation":false,"usgs":true,"family":"Goodge","given":"John","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":882254,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Damaske, Detlef","contributorId":77384,"corporation":false,"usgs":true,"family":"Damaske","given":"Detlef","email":"","affiliations":[],"preferred":false,"id":882255,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fanning, C. Mark","contributorId":193462,"corporation":false,"usgs":false,"family":"Fanning","given":"C.","email":"","middleInitial":"Mark","affiliations":[],"preferred":false,"id":882256,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70242598,"text":"70242598 - null - Remnant damage from the 1906 San Francisco earthquake","interactions":[],"lastModifiedDate":"2023-04-10T17:02:43.389339","indexId":"70242598","displayToPublicDate":"2006-01-01T11:48:36","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Remnant damage from the 1906 San Francisco earthquake","docAbstract":"<p><span>This field trip consists of two stops at locations where it is possible to see damage from the 1906 earthquake and to gauge the intensity of the ground shaking that caused the damage. The first stop is at a cemetery in Colma, where the damage to monuments and headstones was photographed and roughly quantified in the&nbsp;</span><i>Report of the State Earthquake Investigation Commission</i><span>, Lawson (1908), commonly referred to as the “Lawson Report.” The Lawson Report represents the formal study of the earthquake and consists of a compilation of the reports of many investigators who gathered information about faulting, ground failure, and damage due to the 1906 earthquake. The second stop is at a brick office building at the southern limit of San Francisco that was damaged by the earthquake but repaired in such a fashion that the damage is still clearly evident.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"1906 San Francisco earthquake centennial field guides: Field trips associated with the 100th Anniversary Conference, 18–23 April 2006, San Francisco, California","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"100th Anniversary Conference","conferenceDate":"April 18-23, 2006","conferenceLocation":"San Francisco, CA","language":"English","publisher":"Geological Society of America","doi":"10.1130/2006.1906SF(02)","usgsCitation":"Boatwright, J., Remnant damage from the 1906 San Francisco earthquake, chap. <i>of</i> 1906 San Francisco earthquake centennial field guides: Field trips associated with the 100th Anniversary Conference, 18–23 April 2006, San Francisco, California, p. 25-29, https://doi.org/10.1130/2006.1906SF(02).","productDescription":"5 p.","startPage":"25","endPage":"29","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":415500,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","city":"Colma, San Francisco","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -122.44458882597738,\n              37.665931425168225\n            ],\n            [\n              -122.4366965123254,\n              37.67202373256798\n            ],\n            [\n              -122.44393656865076,\n              37.6805417983678\n            ],\n            [\n              -122.44582811489799,\n              37.68141936169974\n            ],\n            [\n              -122.4513723021741,\n              37.68028368953031\n            ],\n            [\n              -122.45685126371754,\n              37.676308700024876\n            ],\n            [\n              -122.44889372433289,\n              37.66856460244338\n            ],\n            [\n              -122.44458882597738,\n              37.6658281614107\n            ],\n            [\n              -122.44458882597738,\n              37.665931425168225\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -122.44777106677859,\n              37.72084882908082\n            ],\n            [\n              -122.44777106677859,\n              37.71895408813427\n            ],\n            [\n              -122.44573210611418,\n              37.71895408813427\n            ],\n            [\n              -122.44573210611418,\n              37.72084882908082\n            ],\n            [\n              -122.44777106677859,\n              37.72084882908082\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"editors":[{"text":"Prentice, Carol S. 0000-0003-3732-3551 cprentice@usgs.gov","orcid":"https://orcid.org/0000-0003-3732-3551","contributorId":2676,"corporation":false,"usgs":true,"family":"Prentice","given":"Carol","email":"cprentice@usgs.gov","middleInitial":"S.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":869068,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Scotchmoor, Judith G.","contributorId":304052,"corporation":false,"usgs":false,"family":"Scotchmoor","given":"Judith","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":869069,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Moores, Eldridge M.","contributorId":304053,"corporation":false,"usgs":false,"family":"Moores","given":"Eldridge","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":869070,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Kiland, Jon P.","contributorId":304054,"corporation":false,"usgs":false,"family":"Kiland","given":"Jon","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":869071,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Boatwright, John 0000-0002-6931-5241 boat@usgs.gov","orcid":"https://orcid.org/0000-0002-6931-5241","contributorId":1938,"corporation":false,"usgs":true,"family":"Boatwright","given":"John","email":"boat@usgs.gov","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":869067,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70208299,"text":"70208299 - null - Old-growth bottomland hardwood forests as bird habitat: Implications for contemporary management","interactions":[],"lastModifiedDate":"2020-02-03T12:33:56","indexId":"70208299","displayToPublicDate":"2005-12-31T12:31:20","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Old-growth bottomland hardwood forests as bird habitat: Implications for contemporary management","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Ecology and management of bottomland hardwood systems: The state of our understanding: A symposium","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Ecology and Management of Bottomland Hardwood Systems: The State of Our Understanding : A Symposium","conferenceDate":"Mar 11-13, 1999","conferenceLocation":"Memphis, TN","language":"English","publisher":"University of Missouri-Columbia","publisherLocation":"2005","usgsCitation":"Hamilton, R., Barrow, W., and Ouchley, K., Old-growth bottomland hardwood forests as bird habitat: Implications for contemporary management, <i>in</i> Ecology and management of bottomland hardwood systems: The state of our understanding: A symposium, Memphis, TN, Mar 11-13, 1999, p. 373-388.","productDescription":"16 p.","startPage":"373","endPage":"388","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":371942,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hamilton, Robert","contributorId":222134,"corporation":false,"usgs":false,"family":"Hamilton","given":"Robert","affiliations":[],"preferred":false,"id":781317,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barrow, Wylie C. Jr. 0000-0003-4671-2823 barroww@usgs.gov","orcid":"https://orcid.org/0000-0003-4671-2823","contributorId":168953,"corporation":false,"usgs":true,"family":"Barrow","given":"Wylie C.","suffix":"Jr.","email":"barroww@usgs.gov","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":781318,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ouchley, Keith","contributorId":216315,"corporation":false,"usgs":false,"family":"Ouchley","given":"Keith","email":"","affiliations":[],"preferred":false,"id":781319,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70263458,"text":"70263458 - null - Development of stochastic modeling systems using deterministic models and GIS: Principles and a case study in the Atlantic Zone of Costa Rica","interactions":[],"lastModifiedDate":"2025-02-11T16:55:21.741843","indexId":"70263458","displayToPublicDate":"2003-12-01T10:49:02","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Development of stochastic modeling systems using deterministic models and GIS: Principles and a case study in the Atlantic Zone of Costa Rica","docAbstract":"<p>The most important requirements for large-area environmental modeling are a tight integration between models and data, and a close match of the spatial scale at which the model is developed with the scale at which the model is to be applied. To better match the scale of data with that of the model, we propose a set of principles for the development of stochastic modeling systems based on linkage of deterministic models with GIS data. For modeling purposes, a region is usually rasterized into cells and the environmental conditions of those cells are specified by ranges or classes using GIS data layers. It is not necessary to simulate each and every GIS cell in the study area because many cells may have similar environmental conditions and can be grouped together to form cohorts. We define a cohort as the assembly of the cells sharing a unique combination of environmental conditions within the study region. Multiple model simulations can be performed for any given cohort. For each simulation, some of the parameter values can be randomly generated within the specified environmental conditions of the cohort according to a certain statistical distribution which, in turn, can be specified by GIS data layers. By this method the variance and covariance of environmental variables in space and time are integrated into the simulation processes with these modeling systems to make full use of the available data and to assess the uncertainties of the simulated results. An integrated simulation system between CENTURY model and GIS was developed to demonstrate the value of the concepts imbedded in stochastic simulation systems for large area studies.</p>","conferenceTitle":"4th International Conference on Integrating GIS and Environmental Modeling (GIS/EM4)","conferenceDate":"September 2-8, 2000","conferenceLocation":"Banff, Alberta, Canada","language":"English","publisher":"University of Colorado, Cooperative Institute for Research in Environmental Sciences","usgsCitation":"Liu, S., Reiners, W.A., Gerow, K.G., Schimel, D.S., and Keller, M., Development of stochastic modeling systems using deterministic models and GIS: Principles and a case study in the Atlantic Zone of Costa Rica, 4th International Conference on Integrating GIS and Environmental Modeling (GIS/EM4), Banff, Alberta, Canada, September 2-8, 2000, 9 p.","productDescription":"9 p.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":481935,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Costa Rica","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -82.6133520275848,\n              9.499325548625436\n            ],\n            [\n              -82.44230009071387,\n              9.73121764978167\n            ],\n            [\n              -83.54701051633626,\n              11.16801392273345\n            ],\n            [\n              -83.68242663302513,\n              10.951175271798036\n            ],\n            [\n              -83.66104514091643,\n              10.78319089811086\n            ],\n            [\n              -84.16707378749192,\n              10.566072375621317\n            ],\n            [\n              -83.7038081251345,\n              9.604750752776496\n            ],\n            [\n              -82.88418426096321,\n              9.506354909569495\n            ],\n            [\n              -82.6133520275848,\n              9.499325548625436\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Liu, Shuguang 0000-0002-6027-3479 sliu@usgs.gov","orcid":"https://orcid.org/0000-0002-6027-3479","contributorId":147403,"corporation":false,"usgs":true,"family":"Liu","given":"Shuguang","email":"sliu@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":927046,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reiners, William A.","contributorId":147117,"corporation":false,"usgs":false,"family":"Reiners","given":"William","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":927047,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gerow, Kenneth G.","contributorId":49672,"corporation":false,"usgs":true,"family":"Gerow","given":"Kenneth","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":927048,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schimel, David S","contributorId":267312,"corporation":false,"usgs":false,"family":"Schimel","given":"David","email":"","middleInitial":"S","affiliations":[{"id":55473,"text":"Jep Propulsion Laboratory","active":true,"usgs":false}],"preferred":false,"id":927049,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Keller, Michael","contributorId":42681,"corporation":false,"usgs":true,"family":"Keller","given":"Michael","email":"","affiliations":[],"preferred":false,"id":927050,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70267836,"text":"ofr2000130 - null - Alaska resource data file: Chignak quadrangle","interactions":[],"lastModifiedDate":"2025-06-10T14:35:52.992213","indexId":"ofr2000130","displayToPublicDate":"2003-01-08T08:34:51","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-130","title":"Alaska resource data file: Chignak quadrangle","doi":"10.3133/ofr2000130","issn":"0094-9140","onlineOnly":"N","costCenters":[],"links":[{"id":489512,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0130/coverthb.jpg"},{"id":489513,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0130/ofr00130.pdf"}],"publishedDate":"2003-01-08","noUsgsAuthors":false,"publicationDate":"2003-01-08","publicationStatus":"PW"}
,{"id":70206346,"text":"70206346 - null - Integrated geophysical characterization of the Winthrop Landfill Southern Flow Path, Winthrop, Maine","interactions":[],"lastModifiedDate":"2019-10-31T07:46:54","indexId":"70206346","displayToPublicDate":"2002-12-31T17:03:47","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Integrated geophysical characterization of the Winthrop Landfill Southern Flow Path, Winthrop, Maine","docAbstract":"<p>The U.S. Geological Survey (USGS), in cooperation with United Technologies Corporation, used an integrated suite of borehole, surface, and water-borne geophysical methods near the site of the former Winthrop Landfill, Winthrop, Maine, to investigate the hydrogeology controlling the transport of leachate from the landfill to nearby Annabessacook Lake. During the fall of 2000 and summer of 2001, the USGS conducted borehole electromagnetic (EM) induction and gamma logging, and inductive terrain-conductivity, two-dimensional (2D) resistivity, continuous seismic reflection, and magnetic surveys.</p><p>The objectives of this integrated geophysical study were to provide constraints on the location and extent of the southern flow path(s) of contamination from the landfill to the lake; identify shoreline seep geophysical signatures; identify potentially hidden seeps in the lake; and determine depth to bedrock below Annabessacook Lake in the study area.</p><p>Interpretation of surface 2D resistivity, magnetic, and inductive terrain-conductivity data and borehole EM logs delineates an electrically conductive anomaly consistent with a leachate plume moving from the current landfill boundary southward through the overburden to the shores of Annabessacook Lake. Surface and borehole geophysical data collected south and southeast of the landfill indicate the presence of discrete, shallow conductive anomalies at the southeastern edge of the landfill and near the lakeshore. The conductive anomalies appear at increasing depths closer to the lake. Magnetic anomalies offshore confirm the presence of iron-rich landfill leachate discharging into the lake south of the landfill. High-resolution swept-frequency seismic data used to map sediment and grain size distribution in the lake sub-bottom along the shoreline identified sediment-infilled bedrock lows that may act as conduits for contaminant migration.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings: Symposium on the application of geophysics to engineering and environmental problems","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Symposium on the application of geophysics to engineering and environmental problems","conferenceDate":"February 10-14, 2002","conferenceLocation":"Las Vegas, NV","language":"English","publisher":"Environmental and Engineering Geophysical Society","usgsCitation":"Dawson, C.B., Lane, J., White, E.A., and Belaval, M., Integrated geophysical characterization of the Winthrop Landfill Southern Flow Path, Winthrop, Maine, <i>in</i> Proceedings: Symposium on the application of geophysics to engineering and environmental problems, Las Vegas, NV, February 10-14, 2002, 22 p.","productDescription":"22 p.","costCenters":[{"id":493,"text":"Office of Ground Water","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"links":[{"id":368775,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":368774,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://water.usgs.gov/ogw/bgas/publications/SAGEEP02_13ESC6/"}],"country":"United States","state":"Maine","city":"Winthrop","otherGeospatial":"Winthrop Landfill","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -69.9964714050293,\n              44.269419395641016\n            ],\n            [\n              -69.9580192565918,\n              44.269419395641016\n            ],\n            [\n              -69.9580192565918,\n              44.31561943401762\n            ],\n            [\n              -69.9964714050293,\n              44.31561943401762\n            ],\n            [\n              -69.9964714050293,\n              44.269419395641016\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Dawson, Cian B. cbdawson@usgs.gov","contributorId":1890,"corporation":false,"usgs":true,"family":"Dawson","given":"Cian","email":"cbdawson@usgs.gov","middleInitial":"B.","affiliations":[{"id":503,"text":"Office of Water Quality","active":true,"usgs":true}],"preferred":true,"id":774237,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lane, John W. Jr. 0000-0002-3558-243X","orcid":"https://orcid.org/0000-0002-3558-243X","contributorId":210076,"corporation":false,"usgs":true,"family":"Lane","given":"John W.","suffix":"Jr.","affiliations":[{"id":34685,"text":"Dakota Water Science Center","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"preferred":true,"id":774238,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"White, Eric A. 0000-0002-7782-146X eawhite@usgs.gov","orcid":"https://orcid.org/0000-0002-7782-146X","contributorId":1737,"corporation":false,"usgs":false,"family":"White","given":"Eric","email":"eawhite@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":774239,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Belaval, Marcel 0000-0002-4049-6798","orcid":"https://orcid.org/0000-0002-4049-6798","contributorId":207205,"corporation":false,"usgs":false,"family":"Belaval","given":"Marcel","email":"","affiliations":[{"id":37476,"text":"U.S. EPA, Region 1","active":true,"usgs":false}],"preferred":false,"id":774240,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70208984,"text":"70208984 - null - Perspectives on the diagnosis, epizootiology, and control of the 1973 duck plague epizootic in wild waterfowl at Lake Andes, South Dakota","interactions":[],"lastModifiedDate":"2020-03-10T08:36:59","indexId":"70208984","displayToPublicDate":"1997-10-31T08:29:49","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2507,"text":"Journal of Wildlife Diseases","active":true,"publicationSubtype":{"id":10}},"title":"Perspectives on the diagnosis, epizootiology, and control of the 1973 duck plague epizootic in wild waterfowl at Lake Andes, South Dakota","docAbstract":"<p><span>An epizootic of duck plague occurred in early 1973 in a population of 163,500 wild waterfowl, primarily mallards (Anas platyrhynchos), wintering on Lake Andes and the nearby Missouri River in southeastern South Dakota (USA). The&nbsp;</span><span class=\"ScopusTermHighlight\">diagnosis</span><span>&nbsp;was based on pathologic lesions and confirmed by virus isolation. Control measures included quarantine, attempts to reduce virus contamination of the area, dispersal of waterfowl, and monitoring of wild waterfowl populations for mortality. The epizootic resulted in documented mortality of 18% and estimated mortality of 26% of the waterfowl at risk. Prompt implementation of control measures might have limited mortality to approximately 8%. Losses during the epizootic were equivalent to 0.12% of the annual mortality in the North American 1996 fall population of 80,000,000 wild ducks. The most likely sources of the infection were free-flying wild mallard or American black duck (Anas rubripes) carriers from the upper midwestern or northeastern United States. Duck plague serum neutralization antibodies were demonstrated in 31% of 395 apparently healthy mallards sampled prior to dispersal of the flock at Lake Andes, suggesting that tens of thousands of potential duck plague carriers entered the wild waterfowl populations of all four major flyways. Consequently, the absence of major epizootics of duck plague in wild waterfowl in the subsequent two decades is evidence that substantial numbers of duck plague carriers can occur in wild waterfowl populations without resulting in epizootic mortalities. The failure to isolate duck plague virus from apparently healthy mallards sampled during the epizootic raises questions concerning the validity of conclusions regarding the status of duck plague in wild waterfowl based upon negative results of random surveys conducted in the absence of epizootics. © Wildlife Disease Association 1997.</span></p>","language":"English","doi":"10.7589/0090-3558-33.4.681","issn":"00903558","usgsCitation":"Pearson, G.L., and Cassidy, D.R., Perspectives on the diagnosis, epizootiology, and control of the 1973 duck plague epizootic in wild waterfowl at Lake Andes, South Dakota: Journal of Wildlife Diseases, v. 33 , no. 4, p. 681-705, https://doi.org/10.7589/0090-3558-33.4.681.","productDescription":"25 p. ","startPage":"681","endPage":"705","costCenters":[],"links":[{"id":373039,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States ","state":"South Dakota ","county":"Charles Mix County ","city":"Lake Andes ","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -100.1678466796875,\n              43.032760685832\n            ],\n            [\n              -98.54736328125,\n              43.032760685832\n            ],\n            [\n              -98.54736328125,\n              44.02442151965934\n            ],\n            [\n              -100.1678466796875,\n              44.02442151965934\n            ],\n            [\n              -100.1678466796875,\n              43.032760685832\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"33 ","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Pearson, Gary L.","contributorId":76676,"corporation":false,"usgs":true,"family":"Pearson","given":"Gary","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":784413,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cassidy, Delmar R.","contributorId":223166,"corporation":false,"usgs":false,"family":"Cassidy","given":"Delmar","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":784414,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70205042,"text":"70205042 - null - Detecting hurricane impact and recovery from tree rings","interactions":[],"lastModifiedDate":"2019-08-28T15:26:57","indexId":"70205042","displayToPublicDate":"1996-12-31T15:21:17","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"title":"Detecting hurricane impact and recovery from tree rings","docAbstract":"<p>No abstract available</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Tree Rings, Environment, and Humanity","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Proceedings of the International Conference","conferenceDate":"May 17-21, 1994","conferenceLocation":"Tuscon, AZ","language":"English","usgsCitation":"Doyle, T.W., Detecting hurricane impact and recovery from tree rings, <i>in</i> Tree Rings, Environment, and Humanity, Tuscon, AZ, May 17-21, 1994, p. 405-412.","productDescription":"8 p.","startPage":"405","endPage":"412","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":367027,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Louisiana, Mississippi","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -90.845947265625,\n              29.219302076779456\n            ],\n            [\n              -87.451171875,\n              29.219302076779456\n            ],\n            [\n              -87.451171875,\n              31.400535326863935\n            ],\n            [\n              -90.845947265625,\n              31.400535326863935\n            ],\n            [\n              -90.845947265625,\n              29.219302076779456\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Doyle, Thomas W. 0000-0001-5754-0671 doylet@usgs.gov","orcid":"https://orcid.org/0000-0001-5754-0671","contributorId":703,"corporation":false,"usgs":true,"family":"Doyle","given":"Thomas","email":"doylet@usgs.gov","middleInitial":"W.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":769727,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70246753,"text":"70246753 - null - Exsolved magmatic fluid and its role in the formation of comb-layered quartz at the Cretaceous Logtung W-Mo deposit, Yukon Territory, Canada","interactions":[],"lastModifiedDate":"2023-07-18T16:21:51.724071","indexId":"70246753","displayToPublicDate":"1996-01-01T11:13:58","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Exsolved magmatic fluid and its role in the formation of comb-layered quartz at the Cretaceous Logtung W-Mo deposit, Yukon Territory, Canada","docAbstract":"<p><span>Comb-layered quartz is a type of unidirectional solidification texture found at the roofs of shallow silicic intrusions that are often associated spatially with Mo and W mineralisation. The texture consists of multiple layers of euhedral, prismatic quartz crystals (Type I) that have grown on subplanar aplite substrates. The layers are separated by porphyritic aplite containing equant phenocrysts of quartz (Type II), which resemble quartz typical of volcanic rocks and porphyry intrusions. At Logtung, Type I quartz within comb layers is zoned with respect to a number of trace elements, including Al and K. Concentrations of these elements as well as Mn, Ti, Ge, Rb and H are anomalous and much higher than found in Type II quartz from Logtung or in igneous quartz reported elsewhere. The two populations appear to have formed under different conditions. The Type II quartz phenocrysts almost certainly grew from a high-silica melt between 600 and 800°C (as β-quartz); in contrast, the morphology of Type I quartz is consistent with precipitation from a hydrothermal solution, possibly as α-quartz grown below 600°C. The bulk compositions of comb-layered rocks, as well as the aplite interlayers, are consistent with the hypothesis that these textures did not precipitate solely from a crystallising silicate melt. Instead, Type I quartz may have grown from pockets of exsolved magmatic fluid located between the magma and its crystallised border. The Type II quartz represents pre-existing phenocrysts in the underlying magma; this magma was quenched to aplite during fracturing/degassing events. Renewed and repeated formation and disruption of the pockets of exsolved aqueous fluid accounts for the rhythmic banding of the rocks.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"The Third Hutton symposium on the origin of granites and related rocks","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisherLocation":"1996","doi":"10.1130/0-8137-2315-9.291","usgsCitation":"Lowenstern, J.B., and Sinclair, W.D., Exsolved magmatic fluid and its role in the formation of comb-layered quartz at the Cretaceous Logtung W-Mo deposit, Yukon Territory, Canada, chap. <i>of</i> The Third Hutton symposium on the origin of granites and related rocks, v. 315, p. 291-303, https://doi.org/10.1130/0-8137-2315-9.291.","productDescription":"13 p.","startPage":"291","endPage":"303","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":419057,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada","state":"Yukon Territory","otherGeospatial":"Logtung","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -131.918034408077,\n              60.00963320120135\n            ],\n            [\n              -131.9420601623024,\n              60.00963320120135\n            ],\n            [\n              -131.9420601623024,\n              60.000111867680914\n            ],\n            [\n              -131.918034408077,\n              60.000111867680914\n            ],\n            [\n              -131.918034408077,\n              60.00963320120135\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"315","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Lowenstern, Jacob B. 0000-0003-0464-7779 jlwnstrn@usgs.gov","orcid":"https://orcid.org/0000-0003-0464-7779","contributorId":2755,"corporation":false,"usgs":true,"family":"Lowenstern","given":"Jacob","email":"jlwnstrn@usgs.gov","middleInitial":"B.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":878174,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sinclair, W. David","contributorId":69123,"corporation":false,"usgs":true,"family":"Sinclair","given":"W.","email":"","middleInitial":"David","affiliations":[],"preferred":false,"id":878175,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70207050,"text":"70207050 - null - Geodetic monitoring of the southern San Andreas Fault, California, 1980-1991","interactions":[],"lastModifiedDate":"2020-05-28T12:49:02.247298","indexId":"70207050","displayToPublicDate":"1995-12-04T14:40:08","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2312,"text":"Journal of Geophysical Research","active":true,"publicationSubtype":{"id":10}},"title":"Geodetic monitoring of the southern San Andreas Fault, California, 1980-1991","docAbstract":"<p><span>Five geodetic arrays (10 to 40 km aperture) located along the San Andreas fault have been surveyed frequently (several times in most years) over the 1980–1991 interval to detect possible fluctuations in the deformation rate. In each survey of an array the distances between the same four to seven pairs of geodetic monuments were measured. The distances measured (with corresponding standard deviation) range from 8.4 km (3.4 mm) to 38 km (8.2 mm). The data are displayed as plots of measured distance as a function of time. Linear fits in such plots furnish a satisfactory representation of the data. That is, the scatter of the data about the linear fits is within the range expected for the estimated standard deviations in measurement. However, there are coherent low‐amplitude (within the observational error) fluctuations apparent in some of the measured distances. Those fluctuations need not be tectonic effects but rather may be either random patterns or artifacts introduced by systematic drift in instrument calibration or wander of the geodetic monuments. We conclude that the measurements are consistent with steady deformation of the arrays over the 1980–1991 interval, and we find no convincing evidence in the data for fluctuations in the rate of deformation.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/95JB00611","usgsCitation":"Savage, J.C., and Lisowski, M., Geodetic monitoring of the southern San Andreas Fault, California, 1980-1991: Journal of Geophysical Research, v. 100, no. B5, p. 8185-8192, https://doi.org/10.1029/95JB00611.","productDescription":"8 p.","startPage":"8185","endPage":"8192","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":369910,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -121.06933593749999,\n              33.7243396617476\n            ],\n            [\n              -115.57617187499999,\n              33.7243396617476\n            ],\n            [\n              -115.57617187499999,\n              35.88905007936091\n            ],\n            [\n              -121.06933593749999,\n              35.88905007936091\n            ],\n            [\n              -121.06933593749999,\n              33.7243396617476\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"100","issue":"B5","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","contributors":{"authors":[{"text":"Savage, James C. 0000-0002-5114-7673 jasavage@usgs.gov","orcid":"https://orcid.org/0000-0002-5114-7673","contributorId":2412,"corporation":false,"usgs":true,"family":"Savage","given":"James","email":"jasavage@usgs.gov","middleInitial":"C.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":776635,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lisowski, Michael 0000-0003-4818-2504 mlisowski@usgs.gov","orcid":"https://orcid.org/0000-0003-4818-2504","contributorId":637,"corporation":false,"usgs":true,"family":"Lisowski","given":"Michael","email":"mlisowski@usgs.gov","affiliations":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":776636,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
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