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","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Minor elements 2000: Processing and environmental aspects of As, Sb, Se, Te, and Bi","language":"English","publisher":"Society for Mining, Metallurgy, and Exploration ","isbn":"0873351991","usgsCitation":"Nordstrom, D.K., 2000, Thermodynamic properties of environmental arsenic species: Limitations and needs, chap. of Minor elements 2000: Processing and environmental aspects of As, Sb, Se, Te, and Bi, p. 325-331.","productDescription":"7 p.","startPage":"325","endPage":"331","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":356698,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b98d7d5e4b0702d0e847c87","contributors":{"editors":[{"text":"Young, C.","contributorId":67709,"corporation":false,"usgs":true,"family":"Young","given":"C.","email":"","affiliations":[],"preferred":false,"id":743255,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":false,"id":743254,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70199474,"text":"70199474 - 2000 - CFC tracing of groundwater in fractured rock aided with 14C and 3H to identify water mixing","interactions":[],"lastModifiedDate":"2018-09-19T10:24:18","indexId":"70199474","displayToPublicDate":"2000-01-01T10:22:08","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"CFC tracing of groundwater in fractured rock aided with 14C and 3H to identify water mixing","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Groundwater: Past achievements and future challenges ","language":"English","publisher":"A.A. Balkema","usgsCitation":"Talma, A., Weaver, J., Plummer, L., and Busenberg, E., 2000, CFC tracing of groundwater in fractured rock aided with 14C and 3H to identify water mixing, chap. of Groundwater: Past achievements and future challenges , p. 635-640.","productDescription":"6 p.","startPage":"635","endPage":"640","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357469,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10fbf5e4b034bf6a8091bf","contributors":{"authors":[{"text":"Talma, A.S.","contributorId":207995,"corporation":false,"usgs":false,"family":"Talma","given":"A.S.","email":"","affiliations":[],"preferred":false,"id":745520,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Weaver, John L.","contributorId":106225,"corporation":false,"usgs":true,"family":"Weaver","given":"John L.","affiliations":[],"preferred":false,"id":745521,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Plummer, L.N.","contributorId":206803,"corporation":false,"usgs":false,"family":"Plummer","given":"L.N.","email":"","affiliations":[],"preferred":false,"id":745522,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Busenberg, Eurybiades ebusenbe@usgs.gov","contributorId":2271,"corporation":false,"usgs":true,"family":"Busenberg","given":"Eurybiades","email":"ebusenbe@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":745523,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70093919,"text":"70093919 - 2000 - Neogene geomorphic and climatic evolution of the central San Juan Mountains, Colorado: K/Ar age and stable isotope data on supergene alunite and jarosite from the Creede mining district","interactions":[],"lastModifiedDate":"2019-11-30T15:48:43","indexId":"70093919","displayToPublicDate":"2000-01-01T10:20:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1727,"text":"GSA Special Papers","active":true,"publicationSubtype":{"id":10}},"title":"Neogene geomorphic and climatic evolution of the central San Juan Mountains, Colorado: K/Ar age and stable isotope data on supergene alunite and jarosite from the Creede mining district","docAbstract":"K/Ar age determinations or supergene alunite and jarosite, formed during Neogene weathering of the epithermal silver and base-metal ores of the Creede mining district, have been combined with geologic evidence to estimate the timing of regional uplift of the southern Rocky Mountains and related canyon cutting. In addition, oxygen and hydrogen isotopic studies suggest climate changes in the central San Juan Mountains during the past 5 m.y. Alunite [ideally (K,Na)Al3(SO4)2(OH)6] and jarosite [ideally KFe3(SO4)2(OH)6] can be dated by K/Ar or 40Ar/39Ar techniques and both contain OH and SO4 sites that enable four stable isotope analyses (δD, δ18OOH, and δ34S) to be made. This supergene alunite and jarosite formed by weathering of sulfide-rich ore bodies may record the evolution of the chemical and hydrologic processes affecting ancient oxidized acid ground water, as well as details of climate history and geomorphic evolution. Fine-grained (1-10 μm) supergene alunite and jarosite occur in minor fractures in the upper, oxidized parts of the 25 Ma sulfide-bearing veins of the Creede mining district, and jarosite also occurs in adjacent oxidized Ag-bearing clastic sediments. K/Ar ages for alunite range from 4.8 to 3.1 Ma, and for jarosite range from 2.6 to 0.9 Ma. The δD values for alunite and jarosite show opposite correlations with elevation, and values for jarosite correlate with age. Calculated δDH2O values of alunite fluids approach but are larger than those of present-day meteoric water. Calculated δDH2O values for jarosite fluids are more variable; the values of the youngest jarosites are lowest and are similar to those of present-day meteoric water in the district. The narrow δD-δ18OSO4 values of alunites reflects oxidation of sulfide below the water table. The greater range in these values for jarosites reflects oxidation of sulfide under vadose conditions. The ages of alunite mark the position of the paleo-water table at the end of a period of moderate erosion from ca. 25 to 5 Ma that exposed the tops of the ore bodies to oxidation. The younger jarosite formed in the vadose zone during or following subsequent canyon cutting related to regional uplift of the southern Rocky Mountains, The δD values suggest that climates in the area were similar to those of the present day prior to regional uplift but went through a warm period before returning to present conditions during or after regional uplift. The results of this study indicate that the combined stable and radiogenic isotope analysis of supergene alunite and jarosite has broad application in understanding climate and geomorphic evolution of selected areas.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"GSA Special Papers","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-2346-9.95","issn":"00721077","usgsCitation":"Rye, R.O., Bethke, P., Lanphere, M.A., and Steven, T., 2000, Neogene geomorphic and climatic evolution of the central San Juan Mountains, Colorado: K/Ar age and stable isotope data on supergene alunite and jarosite from the Creede mining district: GSA Special Papers, v. 346, p. 95-103, https://doi.org/10.1130/0-8137-2346-9.95.","productDescription":"9 p.","startPage":"95","endPage":"103","numberOfPages":"9","costCenters":[{"id":218,"text":"Denver Federal Center","active":false,"usgs":true}],"links":[{"id":282385,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":282383,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/0-8137-2346-9.95"}],"country":"United States","state":"Colorado","otherGeospatial":"San Juan Mountains","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -107.4401,37.4651 ], [ -107.4401,37.9552 ], [ -106.5941,37.9552 ], [ -106.5941,37.4651 ], [ -107.4401,37.4651 ] ] ] } } ] }","volume":"346","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd68cee4b0b290851024bc","contributors":{"authors":[{"text":"Rye, Robert O. rrye@usgs.gov","contributorId":1486,"corporation":false,"usgs":true,"family":"Rye","given":"Robert","email":"rrye@usgs.gov","middleInitial":"O.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":490289,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bethke, Philip M.","contributorId":52829,"corporation":false,"usgs":true,"family":"Bethke","given":"Philip M.","affiliations":[],"preferred":false,"id":490291,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lanphere, Marvin A. alder@usgs.gov","contributorId":2696,"corporation":false,"usgs":true,"family":"Lanphere","given":"Marvin","email":"alder@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":490290,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Steven, Thomas A.","contributorId":57529,"corporation":false,"usgs":true,"family":"Steven","given":"Thomas A.","affiliations":[],"preferred":false,"id":490292,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70073333,"text":"70073333 - 2000 - Evolution of the Creede Caldera and its relation to mineralization in the Creede mining district, Colorado","interactions":[],"lastModifiedDate":"2014-01-16T10:37:02","indexId":"70073333","displayToPublicDate":"2000-01-01T10:13:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1727,"text":"GSA Special Papers","active":true,"publicationSubtype":{"id":10}},"title":"Evolution of the Creede Caldera and its relation to mineralization in the Creede mining district, Colorado","docAbstract":"At 25 Ma a major epithermal silver and base metal deposit formed in rhyolitic welded tuff near Creede, Colorado. Nearly 24000 metric tons of silver, appreciable lead, and small amounts of zinc, copper, and gold, have been produced from large, crustified veins under Bachelor and Bulldog Mountains north and northwest of Creede. Prior geologic, hydrologic, and stable-isotope studies showed that ore deposition was associated with the mixing and boiling of waters from diverse sources and suggester that a critical part of the ore-forming fluid may have originated within the ancient lake and sediments of the lacustrine Creede Formation that filled the Creede caldera. Two drill holes that sampled the heretofore hidden lower half of the Creede Formation are the focus of this book. The Creede caldera formed at 26.9 Ma within a high constructional plateau of silicic ashflows that covered and were sporadically interlayed with, intermediate lavas and lahars from large stratovolcanoes. The Creede caldera lake had an inflow evaporation balance that did not permit rapid filling to create a brim-full deep lake. Thus salts were evaporatively concentrated; but, with the exception of possible gypsum, no evaporite minerals preserved. Cool springs deposited travertine as mounds and contributed to limestone interlaminations within the sediment. The lake bottom was anoxic, and bacterial reduction of sulfate led to extreme sulfur isotopic fractionation in diagenetic pyrite. The caldera gradually resurged, converting the initial equant lake into an arcuate moat. Resurgent doming, alluvial fans, lacustrine sediments, ashfalls, and lava domes displaced water, lifted the lake so that it overlapped what later became the southern edge of the mineralized are, and eventually filled the basin. At 25.1 Ma an unseen pluton intruded beneath the northen part of the Creede district and created a convecting olume that drew in brine from the Creede caldera fill, meteotic water from highlands to the north, and possibly a fluid carrying radiogenic lead. These waters mixed and boiled as they approached the surface and moved southward, deposited a zoned epithermal deposit a few hundred meters below the paleosurface, and finally discharged into the top of the Creede Formation. The sulfide in the ores was the igneous derivation, but the sulfate was a mixture of biogenic sulfur from the Creede Formation, oxidized igneous sulfide, and thermochemically reduced and partially oxygen exchanged sulfate. The studies of the Creede caldera provide key observational and conceptual elements for the generalized model of the Creede ore deposit. The relation of the Creed ore deposit to a brine reservoir has broad significance because other brine accumulations (as in the Great Basin, the Green River Basin, or the playas of the Altiplano offer similar setting and exploration opportunities.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"GSA Special Papers","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-2346-9.301","usgsCitation":"Barton, P., Rye, R.O., and Bethke, P., 2000, Evolution of the Creede Caldera and its relation to mineralization in the Creede mining district, Colorado: GSA Special Papers, v. 346, p. 301-326, https://doi.org/10.1130/0-8137-2346-9.301.","productDescription":"26 p.","startPage":"301","endPage":"326","numberOfPages":"26","costCenters":[{"id":218,"text":"Denver Federal Center","active":false,"usgs":true}],"links":[{"id":281156,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":281155,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/0-8137-2346-9.301"}],"country":"United States","state":"Colorado","city":"Creede","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -107.0,37.75 ], [ -107.0,37.916667 ], [ -106.833333,37.916667 ], [ -106.833333,37.75 ], [ -107.0,37.75 ] ] ] } } ] }","volume":"346","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd58aae4b0b290850f83d9","contributors":{"authors":[{"text":"Barton, Paul B.","contributorId":97128,"corporation":false,"usgs":true,"family":"Barton","given":"Paul B.","affiliations":[],"preferred":false,"id":488593,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rye, Robert O. rrye@usgs.gov","contributorId":1486,"corporation":false,"usgs":true,"family":"Rye","given":"Robert","email":"rrye@usgs.gov","middleInitial":"O.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":488591,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bethke, Philip M.","contributorId":52829,"corporation":false,"usgs":true,"family":"Bethke","given":"Philip M.","affiliations":[],"preferred":false,"id":488592,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70211186,"text":"70211186 - 2000 - Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository; Day 2, Beatty to Yucca Mountain; Stop 7B, Secondary minerals and paleohydrologic implications","interactions":[],"lastModifiedDate":"2021-04-09T13:11:50.732716","indexId":"70211186","displayToPublicDate":"2000-01-01T10:05:27","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1724,"text":"GSA Field Guides","active":true,"publicationSubtype":{"id":10}},"title":"Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository; Day 2, Beatty to Yucca Mountain; Stop 7B, Secondary minerals and paleohydrologic implications","docAbstract":"No abstract available.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-0002-7.383","usgsCitation":"Neymark, L., Paces, J.B., Peterman, Z.E., Marshall, B.M., and Whelan, J., 2000, Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository; Day 2, Beatty to Yucca Mountain; Stop 7B, Secondary minerals and paleohydrologic implications: GSA Field Guides, v. 2, p. 401-402, https://doi.org/10.1130/0-8137-0002-7.383.","productDescription":"2 p.","startPage":"401","endPage":"402","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true},{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":376428,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","otherGeospatial":"Yucca Mountain","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.48254394531249,\n 36.91352904330221\n ],\n [\n -116.43602371215822,\n 36.91352904330221\n ],\n [\n -116.43602371215822,\n 36.95757376878687\n ],\n [\n -116.48254394531249,\n 36.95757376878687\n ],\n [\n -116.48254394531249,\n 36.91352904330221\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Neymark, Leonid A. 0000-0003-4190-0278 lneymark@usgs.gov","orcid":"https://orcid.org/0000-0003-4190-0278","contributorId":140338,"corporation":false,"usgs":true,"family":"Neymark","given":"Leonid A.","email":"lneymark@usgs.gov","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":793012,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Paces, James B. 0000-0002-9809-8493 jbpaces@usgs.gov","orcid":"https://orcid.org/0000-0002-9809-8493","contributorId":2514,"corporation":false,"usgs":true,"family":"Paces","given":"James","email":"jbpaces@usgs.gov","middleInitial":"B.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":793013,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Peterman, Zell E. 0000-0002-5694-8082 peterman@usgs.gov","orcid":"https://orcid.org/0000-0002-5694-8082","contributorId":167699,"corporation":false,"usgs":true,"family":"Peterman","given":"Zell","email":"peterman@usgs.gov","middleInitial":"E.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":793014,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Marshall, B. M.","contributorId":229367,"corporation":false,"usgs":false,"family":"Marshall","given":"B.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":793015,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Whelan, Joseph F.","contributorId":39425,"corporation":false,"usgs":true,"family":"Whelan","given":"Joseph F.","affiliations":[],"preferred":false,"id":793016,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70198494,"text":"70198494 - 2000 - The study of humic substances--In search of a paradigm","interactions":[],"lastModifiedDate":"2018-08-13T09:31:40","indexId":"70198494","displayToPublicDate":"2000-01-01T09:09:15","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"The study of humic substances--In search of a paradigm","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Humic substances: Versatile components of plants, soils and water","language":"English","publisher":"Elsevier","doi":"10.1016/B978-1-85573-807-2.50005-9","usgsCitation":"Wershaw, R.L., 2000, The study of humic substances--In search of a paradigm, chap. of Humic substances: Versatile components of plants, soils and water, p. 1-7, https://doi.org/10.1016/B978-1-85573-807-2.50005-9.","productDescription":"8 p.","startPage":"1","endPage":"7","costCenters":[{"id":218,"text":"Denver Federal Center","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":356249,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b98d7d6e4b0702d0e847c89","contributors":{"editors":[{"text":"Davis, G.","contributorId":17343,"corporation":false,"usgs":true,"family":"Davis","given":"G.","affiliations":[],"preferred":false,"id":742239,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Ghabbour, E.A.","contributorId":206940,"corporation":false,"usgs":false,"family":"Ghabbour","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":742240,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Wershaw, Robert L. rwershaw@usgs.gov","contributorId":4856,"corporation":false,"usgs":true,"family":"Wershaw","given":"Robert","email":"rwershaw@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":741673,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70198770,"text":"70198770 - 2000 - Selenium","interactions":[],"lastModifiedDate":"2018-08-17T08:53:18","indexId":"70198770","displayToPublicDate":"2000-01-01T08:51:25","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Selenium","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Encyclopedia of microbiology","language":"English","publisher":"Academic Press","publisherLocation":"New York","usgsCitation":"Oremland, R.S., 2000, Selenium, chap. of Encyclopedia of microbiology, p. 238-247.","productDescription":"10 p.","startPage":"238","endPage":"247","costCenters":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":356571,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"edition":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b98d7d6e4b0702d0e847c8b","contributors":{"editors":[{"text":"Ledenberg, J.","contributorId":207152,"corporation":false,"usgs":false,"family":"Ledenberg","given":"J.","email":"","affiliations":[],"preferred":false,"id":742916,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Oremland, Ronald S. 0000-0001-7382-0147 roremlan@usgs.gov","orcid":"https://orcid.org/0000-0001-7382-0147","contributorId":931,"corporation":false,"usgs":true,"family":"Oremland","given":"Ronald","email":"roremlan@usgs.gov","middleInitial":"S.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":742915,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70093562,"text":"70093562 - 2000 - Modeling surface-subsurface hydrological interactions","interactions":[],"lastModifiedDate":"2014-02-07T08:50:23","indexId":"70093562","displayToPublicDate":"2000-01-01T08:44:30","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Modeling surface-subsurface hydrological interactions","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Streams and ground waters","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","publisher":"Academic Press","publisherLocation":"San Diego, CA","usgsCitation":"Packman, A., and Bencala, K.E., 2000, Modeling surface-subsurface hydrological interactions, chap. of Streams and ground waters, p. 45-80.","productDescription":"36 p.","startPage":"45","endPage":"80","numberOfPages":"36","costCenters":[],"links":[{"id":282092,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd67ece4b0b29085101b20","contributors":{"editors":[{"text":"Jones, Jeremy B.","contributorId":113650,"corporation":false,"usgs":true,"family":"Jones","given":"Jeremy","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":509792,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Mulholland, Patrick J.","contributorId":112634,"corporation":false,"usgs":false,"family":"Mulholland","given":"Patrick","email":"","middleInitial":"J.","affiliations":[{"id":32968,"text":"Oak Ridge National Laboratory, Oak Ridge, TN","active":true,"usgs":false}],"preferred":false,"id":509791,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Packman, Aaron I.","contributorId":15092,"corporation":false,"usgs":true,"family":"Packman","given":"Aaron I.","affiliations":[],"preferred":false,"id":490025,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bencala, Kenneth E. kbencala@usgs.gov","contributorId":1541,"corporation":false,"usgs":true,"family":"Bencala","given":"Kenneth","email":"kbencala@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":490024,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70199234,"text":"70199234 - 2000 - Nitrate isotopes in groundwater systems","interactions":[],"lastModifiedDate":"2018-09-12T08:13:08","indexId":"70199234","displayToPublicDate":"2000-01-01T08:11:13","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Nitrate isotopes in groundwater systems","docAbstract":"Nitrate contamination, often associated with agricultural activities, is a major problem in some shallow aquifers and is increasingly becoming a threat to groundwater supplies (Gillham and Cherry, 1978; Ronen et al., 1983; Spalding and Exner, 1991). The intake of high levels of nitrate can cause methemoglobinemia in infants, and there is substantial evidence collected from animal experiments that N-nitroso compounds are carcinogens. Similar conclusive evidence is not yet available for humans but many observations suggest that these compounds can function as initiators of human carcinogenesis. These findings are the basis for the maximum permissible limit of 10 ppm nitrate-N (50 ppm as NO3) in drinking water set by the World Health Organization and the U.S. Environmental Protection Agency. The impact of high loading of nutrients such as nitrate and phosphorous from agricultural practices via groundwater into surface water is also a major environmental concern, causing eutrophication of streams, rivers and lakes (Hill, 1978; Böhlke and Denver, 1995).
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Environmental tracers in subsurface hydrology","language":"English","publisher":"Springer","publisherLocation":"Boston, MA","doi":"10.1007/978-1-4615-4557-6_9","usgsCitation":"Kendall, C., and Aravena, R., 2000, Nitrate isotopes in groundwater systems, chap. of Environmental tracers in subsurface hydrology, p. 261-297, https://doi.org/10.1007/978-1-4615-4557-6_9.","productDescription":"37 p.","startPage":"261","endPage":"297","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357245,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10fbf5e4b034bf6a8091c3","contributors":{"authors":[{"text":"Kendall, Carol 0000-0002-0247-3405 ckendall@usgs.gov","orcid":"https://orcid.org/0000-0002-0247-3405","contributorId":1462,"corporation":false,"usgs":true,"family":"Kendall","given":"Carol","email":"ckendall@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":744776,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aravena, Ramon ","contributorId":189546,"corporation":false,"usgs":false,"family":"Aravena","given":"Ramon ","affiliations":[],"preferred":false,"id":744777,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70199182,"text":"70199182 - 2000 - Enhanced levels of zinc in drinking water adversely affect spatial learning in rats","interactions":[],"lastModifiedDate":"2018-09-10T07:38:45","indexId":"70199182","displayToPublicDate":"2000-01-01T07:34:58","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Enhanced levels of zinc in drinking water adversely affect spatial learning in rats","docAbstract":"No abstract available.
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2000 - Phosphate sorption by base metal hydroxides generated in the neutralization of acid mine drainage","interactions":[],"lastModifiedDate":"2012-02-02T00:14:57","indexId":"2001561","displayToPublicDate":"2000-01-01T02:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":18,"text":"Abstract or summary"},"title":"Phosphate sorption by base metal hydroxides generated in the neutralization of acid mine drainage","docAbstract":"No abstract available at this time","largerWorkTitle":"Animal Feeding Operations: Effects on Hydrologic Resources and the Environment (USGS OFR 00-204)","conferenceTitle":"Animal Feeding Operations: Effects on Hydrologic Resources and the Environment","conferenceLocation":"Fort Collins, CO","language":"English","publisher":"U.S. Geological Survey","collaboration":"00-030/RT","usgsCitation":"Sibrell, P., and Adler, P., 2000, Phosphate sorption by base metal hydroxides generated in the neutralization of acid mine drainage, in Animal Feeding Operations: Effects on Hydrologic Resources and the Environment (USGS OFR 00-204), Fort Collins, CO, p. 0-90.","productDescription":"90 p.","startPage":"0","endPage":"90","numberOfPages":"90","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":94247,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://water.usgs.gov/owq/AFO/proceedings/afo/pdf/sibrell.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":199121,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adfe4b07f02db687842","contributors":{"authors":[{"text":"Sibrell, P.L.","contributorId":13343,"corporation":false,"usgs":true,"family":"Sibrell","given":"P.L.","affiliations":[],"preferred":false,"id":325907,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Adler, P.R.","contributorId":55548,"corporation":false,"usgs":true,"family":"Adler","given":"P.R.","email":"","affiliations":[],"preferred":false,"id":325908,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70022047,"text":"70022047 - 2000 - Hydrological Aspects of Weather Prediction and Flood Warnings: Report of the Ninth Prospectus Development Team of the U.S. Weather Research Program","interactions":[],"lastModifiedDate":"2012-03-12T17:19:45","indexId":"70022047","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Hydrological Aspects of Weather Prediction and Flood Warnings: Report of the Ninth Prospectus Development Team of the U.S. Weather Research Program","docAbstract":"Among the many natural disasters that disrupt human and industrial activity in the United States each year, including tornadoes, hurricanes, extreme temperatures, and lightning, floods are among the most devastating and rank second in the loss of life. Indeed, the societal impact of floods has increased during the past few years and shows no sign of abating. Although the scientific questions associated with flooding and its accurate prediction are many and complex, an unprecedented opportunity now exists - in light of new observational and computing systems and infrastructures, a much improved understanding of small-scale meteorological and hydrological processes, and the availability of sophisticated numerical models and data assimilation systems - to attack the flood forecasting problem in a comprehensive manner that will yield significant new scientific insights and corresponding practical benefits. The authors present herein a set of recommendations for advancing our understanding of floods via the creation of natural laboratories situated in a variety of local meteorological and hydrological settings. Emphasis is given to floods caused by convection and cold season events, fronts and extratropical cyclones, orographic forcing, and hurricanes and tropical cyclones following landfall. Although the particular research strategies applied within each laboratory setting will necessarily vary, all will share the following principal elements: (a) exploitation of those couplings important to flooding that exist between meteorological and hydrological processes and models; (b) innovative use of operational radars, research radars, satellites, and rain gauges to provide detailed spatial characterizations of precipitation fields and rates, along with the use of this information in hydrological models and for improving and validating microphysical algorithms in meteorological models; (c) comparisons of quantitative precipitation estimation algorithms from both research (especially multiparameter) and operational radars against gauge data as well as output produced by meso- and storm-scale models; (d) use of data from dense, temporary river gauge networks to trace the fate of rain from its starting location in small basins to the entire stream and river network; and (e) sensitivity testing in the design and implementation of separate as well as coupled meteorological and hydrologic models, the latter designed to better represent those nonlinear feedbacks between the atmosphere and land that are known to play an important role in runoff prediction. Vital to this effort will be the creation of effective and sustained linkages between the historically separate though scientifically related disciplines of meteorology and hydrology, as well as their observational infrastructures and research methodologies.","largerWorkTitle":"Bulletin of the American Meteorological Society","language":"English","issn":"00030007","usgsCitation":"Droegemeier, K., Smith, J., Businger, S., Doswell, C., Doyle, J., Duffy, C., Foufoula-Georgiou, E., Graziano, T., James, L., Krajewski, V., LeMone, M., Lettenmaier, D., Mass, C., Pielke, R., Ray, P., Rutledge, S., Schaake, J., and Zipser, E., 2000, Hydrological Aspects of Weather Prediction and Flood Warnings: Report of the Ninth Prospectus Development Team of the U.S. Weather Research Program, in Bulletin of the American Meteorological Society, v. 81, no. 11, p. 2665-2680.","startPage":"2665","endPage":"2680","numberOfPages":"16","costCenters":[],"links":[{"id":230624,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"81","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a36a7e4b0c8380cd608b0","contributors":{"authors":[{"text":"Droegemeier, K.K.","contributorId":45578,"corporation":false,"usgs":true,"family":"Droegemeier","given":"K.K.","email":"","affiliations":[],"preferred":false,"id":392151,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, J.D.","contributorId":35796,"corporation":false,"usgs":true,"family":"Smith","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":392149,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Businger, S.","contributorId":65331,"corporation":false,"usgs":true,"family":"Businger","given":"S.","affiliations":[],"preferred":false,"id":392157,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Doswell, C. 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LEAF-2 is a prognostic model for the temperature and water content of soil, snow cover, vegetation, and canopy air, and includes turbulent and radiative exchanges between these components and with the atmosphere. Subdivision of a RAMS surface grid cell into multiple areas of distinct land-use types is allowed, with each subgrid area, or patch, containing its own LEAF-2 model, and each patch interacts with the overlying atmospheric column with a weight proportional to its fractional area in the grid cell. A description is also given of TOPMODEL, a land hydrology model that represents surface and subsurface downslope lateral transport of groundwater. Details of the incorporation of a modified form of TOPMODEL into LEAF-2 are presented. Sensitivity tests of the coupled system are presented that demonstrate the potential importance of the patch representation and of lateral water transport in idealized model simulations. Independent studies that have applied LEAF-2 and verified its performance against observational data are cited. Linkage of RAMS and TOPMODEL through LEAF-2 creates a modeling system that can be used to explore the coupled atmosphere–biophysical–hydrologic response to altered climate forcing at local watershed and regional basin scales.
","language":"English","publisher":"American Meteorological Society","doi":"10.1175/1520-0450(2000)039<0931:CABHMF>2.0.CO;2","usgsCitation":"Walko, R.L., Band, L., Baron, J., Kittel, T., Lammers, R., Lee, T., Ojima, D., Pielke, R., Taylor, C., Tague, C., Tremback, C., and Vidale, P., 2000, Coupled atmosphere-biophysics-hydrology models for environmental modeling: Journal of Applied Meteorology, v. 39, no. 6, p. 931-944, https://doi.org/10.1175/1520-0450(2000)039<0931:CABHMF>2.0.CO;2.","productDescription":"14 p.","startPage":"931","endPage":"944","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":479156,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1175/1520-0450(2000)039<0931:cabhmf>2.0.co;2","text":"Publisher Index Page"},{"id":131199,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"39","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db68387b","contributors":{"authors":[{"text":"Walko, R. L.","contributorId":25521,"corporation":false,"usgs":true,"family":"Walko","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":322170,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Band, L.E.","contributorId":70342,"corporation":false,"usgs":true,"family":"Band","given":"L.E.","email":"","affiliations":[],"preferred":false,"id":322175,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Baron, Jill 0000-0002-5902-6251 jill_baron@usgs.gov","orcid":"https://orcid.org/0000-0002-5902-6251","contributorId":194124,"corporation":false,"usgs":true,"family":"Baron","given":"Jill","email":"jill_baron@usgs.gov","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":322168,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kittel, T.G.F.","contributorId":21500,"corporation":false,"usgs":true,"family":"Kittel","given":"T.G.F.","email":"","affiliations":[],"preferred":false,"id":322169,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lammers, R.","contributorId":46904,"corporation":false,"usgs":true,"family":"Lammers","given":"R.","email":"","affiliations":[],"preferred":false,"id":322173,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lee, T.J.","contributorId":42169,"corporation":false,"usgs":true,"family":"Lee","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":322172,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ojima, D.","contributorId":10378,"corporation":false,"usgs":true,"family":"Ojima","given":"D.","affiliations":[],"preferred":false,"id":322166,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Pielke, R.A. Sr.","contributorId":96224,"corporation":false,"usgs":true,"family":"Pielke","given":"R.A.","suffix":"Sr.","email":"","affiliations":[],"preferred":false,"id":322177,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Taylor, C.","contributorId":73958,"corporation":false,"usgs":true,"family":"Taylor","given":"C.","affiliations":[],"preferred":false,"id":322176,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Tague, C.","contributorId":13579,"corporation":false,"usgs":true,"family":"Tague","given":"C.","affiliations":[],"preferred":false,"id":322167,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Tremback, C.J.","contributorId":52530,"corporation":false,"usgs":true,"family":"Tremback","given":"C.J.","email":"","affiliations":[],"preferred":false,"id":322174,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Vidale, P.L.","contributorId":35690,"corporation":false,"usgs":true,"family":"Vidale","given":"P.L.","email":"","affiliations":[],"preferred":false,"id":322171,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}} ,{"id":1015329,"text":"1015329 - 2000 - Sensitivity of a high-elevation Rocky Mountain watershed to altered climate and CO2","interactions":[],"lastModifiedDate":"2018-03-27T16:57:42","indexId":"1015329","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Sensitivity of a high-elevation Rocky Mountain watershed to altered climate and CO2","title":"Sensitivity of a high-elevation Rocky Mountain watershed to altered climate and CO2","docAbstract":"We explored the hydrologic and ecological responses of a headwater mountain catchment, Loch Vale watershed, to climate change and doubling of atmospheric CO2 scenarios using the Regional Hydro-Ecological Simulation System (RHESSys). A slight (2°C) cooling, comparable to conditions observed over the past 40 years, led to greater snowpack and slightly less runoff, evaporation, transpiration, and plant productivity. An increase of 2°C yielded the opposite response, but model output for an increase of 4°C showed dramatic changes in timing of hydrologic responses. The snowpack was reduced by 50%, and runoff and soil water increased and occurred 4–5 weeks earlier with 4°C warming. Alpine tundra photosynthetic rates responded more to warmer and wetter conditions than subalpine forest, but subalpine forest showed a greater response to doubling of atmospheric CO2 than tundra. Even though water use efficiency increased with the double CO2 scenario, this had little effect on basin-wide runoff because the catchment is largely unvegetated. Changes in winter and spring climate conditions were more important to hydrologic and vegetation dynamics than changes that occurred during summer.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/1999WR900263","usgsCitation":"Baron, J., Hartman, M.D., Band, L., and Lammers, R., 2000, Sensitivity of a high-elevation Rocky Mountain watershed to altered climate and CO2: Water Resources Research, v. 36, no. 1, p. 89-99, https://doi.org/10.1029/1999WR900263.","productDescription":"11 p.","startPage":"89","endPage":"99","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":479317,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/1999wr900263","text":"Publisher Index Page"},{"id":133158,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"36","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49ffe4b07f02db5f7a5b","contributors":{"authors":[{"text":"Baron, Jill 0000-0002-5902-6251 jill_baron@usgs.gov","orcid":"https://orcid.org/0000-0002-5902-6251","contributorId":194124,"corporation":false,"usgs":true,"family":"Baron","given":"Jill","email":"jill_baron@usgs.gov","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":322905,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hartman, Melannie D.","contributorId":98836,"corporation":false,"usgs":true,"family":"Hartman","given":"Melannie","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":322904,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Band, L.E.","contributorId":70342,"corporation":false,"usgs":true,"family":"Band","given":"L.E.","email":"","affiliations":[],"preferred":false,"id":322907,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lammers, R.B.","contributorId":67469,"corporation":false,"usgs":true,"family":"Lammers","given":"R.B.","email":"","affiliations":[],"preferred":false,"id":322906,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1015069,"text":"1015069 - 2000 - Investigation of nitrogen transformations in a southern California constructed wastewater treatment wetland","interactions":[],"lastModifiedDate":"2018-12-10T09:27:40","indexId":"1015069","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1454,"text":"Ecological Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Investigation of nitrogen transformations in a southern California constructed wastewater treatment wetland","docAbstract":"A 9.9-ha combined habitat and wastewater treatment demonstration wetland was constructed and planted in the summer of 1994, at Eastern Municipal Water District’s (EMWD) Hemet/San Jacinto Regional Water Reclamation Facility (RWRF) in southern California. From January 1996 through September 1997, the marsh–pond–marsh wetland system was operated to polish an average of 3785 m3 d−1 (1×106 gal day−1) of secondary-treated effluent from the RWRF. Nitrogen removal was a major objective of this wetland treatment. Weekly inflow/outflow water quality monitoring of the wetland was supplemented with biannual, 45-station synoptic surveys within the system to determine internal distribution patterns of the nitrogen species (total ammonia, nitrite, nitrate, and organic nitrogen), total organic carbon (TOC), and ultraviolet absorbance at 254 nm (UV254). Synoptic surveys were carried out during May 22 and September 17, 1996, and May 6 and September 25, 1997 and the results were mapped using the ARC/INFO processing package and inverse distance weighted mathematical techniques. Distribution patterns of the various nitrogen species, TOC, and UV254 within the wetland indicate that the nitrogen dynamics of the system are influenced both by variations in treatment plant loading, and, increasingly, by the degree of coverage and maturity of the emergent vegetation.
","language":"English","publisher":"Elsevier","doi":"10.1016/S0925-8574(99)00019-1","usgsCitation":"Sartoris, J., Thullen, J., Barber, L.B., and Salas, D., 2000, Investigation of nitrogen transformations in a southern California constructed wastewater treatment wetland: Ecological Engineering, v. 14, no. 1-2, p. 49-65, https://doi.org/10.1016/S0925-8574(99)00019-1.","productDescription":"17 p.","startPage":"49","endPage":"65","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":129795,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"14","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e479de4b07f02db491d69","contributors":{"authors":[{"text":"Sartoris, J.J.","contributorId":84310,"corporation":false,"usgs":true,"family":"Sartoris","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":322046,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thullen, J.S.","contributorId":16361,"corporation":false,"usgs":true,"family":"Thullen","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":322043,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barber, L. B.","contributorId":64602,"corporation":false,"usgs":true,"family":"Barber","given":"L.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":322044,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Salas, D.E.","contributorId":81054,"corporation":false,"usgs":true,"family":"Salas","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":322045,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1015051,"text":"1015051 - 2000 - Stream chemistry modeling of two watersheds in the Front Range, Colorado","interactions":[],"lastModifiedDate":"2018-03-27T16:51:53","indexId":"1015051","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Stream chemistry modeling of two watersheds in the Front Range, Colorado","docAbstract":"We investigated the hydrologic, geochemical, and biogeochemical controls on stream chemical composition on the Green Lakes Valley and Andrews Creek watersheds using the alpine hydrochemical model (AHM). Both sites had comparable data sets from 1994 and 1996, including high‐resolution spatial data and high‐frequency time series of hydrology, geochemistry, and meteorology. The model of each watershed consisted of three terrestrial subunits (soil, talus, and rock), with the routing between the subunits determined by spatial land cover data. Using 1994 data for model calibration and 1996 data for evaluation, AHM captured the dominant processes and successfully simulated daily stream chemical composition on both watersheds. These results confirm our procedure of using spatial and site‐specific field and laboratory data to generate an initial catchment model and then calibrating the model to calculate effective parameters for unmeasured processes. A net source of nitrogen was identified in the Andrews Creek watershed during the spring snowmelt period, whereas nitrogen was immobilized in the Green Lakes Valley. This difference was most likely due to the larger and more dominant area of talus in the Andrews Creek watershed. Our results also indicate that routing of snowmelt through either soil or talus material is sufficient for retention of H+ and release of base cations but that N retention is more important on areas mapped as soil. Owing to the larger ionic pulse and larger fraction of surface runoff the Green Lakes Valley was more sensitive to a doubling of wet deposition chemistry than the Andrews Creek watershed.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/1999WR900248","usgsCitation":"Meixner, T., Bales, R.C., Williams, M.W., Campbell, D.H., and Baron, J., 2000, Stream chemistry modeling of two watersheds in the Front Range, Colorado: Water Resources Research, v. 36, no. 1, p. 77-87, https://doi.org/10.1029/1999WR900248.","productDescription":"11 p.","startPage":"77","endPage":"87","costCenters":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":479320,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/1999wr900248","text":"Publisher Index Page"},{"id":131270,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado","otherGeospatial":"Colorado Front Range","volume":"36","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b16e4b07f02db6a521e","contributors":{"authors":[{"text":"Meixner, Thomas","contributorId":22653,"corporation":false,"usgs":false,"family":"Meixner","given":"Thomas","email":"","affiliations":[{"id":7042,"text":"University of Arizona","active":true,"usgs":false}],"preferred":false,"id":321969,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bales, Roger C.","contributorId":189659,"corporation":false,"usgs":false,"family":"Bales","given":"Roger","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":321965,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Williams, Mark W.","contributorId":43046,"corporation":false,"usgs":true,"family":"Williams","given":"Mark","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":321966,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Campbell, Donald H. dhcampbe@usgs.gov","contributorId":1670,"corporation":false,"usgs":true,"family":"Campbell","given":"Donald","email":"dhcampbe@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":321968,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Baron, Jill S. 0000-0002-5902-6251 jill_baron@usgs.gov","orcid":"https://orcid.org/0000-0002-5902-6251","contributorId":822,"corporation":false,"usgs":true,"family":"Baron","given":"Jill S.","email":"jill_baron@usgs.gov","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":321967,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70022118,"text":"70022118 - 2000 - The significance of microbial processes in hydrogeology and geochemistry","interactions":[],"lastModifiedDate":"2018-12-07T07:08:17","indexId":"70022118","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1923,"text":"Hydrogeology Journal","active":true,"publicationSubtype":{"id":10}},"title":"The significance of microbial processes in hydrogeology and geochemistry","docAbstract":"Microbial processes affect the chemical composition of groundwater and the hydraulic properties of aquifers in both contaminated and pristine groundwater systems. The patterns of water-chemistry changes that occur depend upon the relative abundance of electron donors and electron acceptors. In many pristine aquifers, where microbial metabolism is limited by the availability of electron donors (usually organic matter), dissolved inorganic carbon (DIC) accumulates slowly along aquifer flow paths and available electron acceptors are consumed sequentially in the order dissolved oxygen > nitrate > Fe(III) > sulfate > CO2 (methanogenesis). In aquifers contaminated by anthropogenic contaminants, an excess of available organic carbon often exists, and microbial metabolism is limited by the availability of electron acceptors. In addition to changes in groundwater chemistry, the solid matrix of the aquifer is affected by microbial processes. The production of carbon dioxide and organic acids can lead to increased mineral solubility, which can lead to the development of secondary porosity and permeability. Conversely, microbial production of carbonate, ferrous iron, and sulfide can result in the precipitation of secondary calcite or pyrite cements that reduce primary porosity and permeability in groundwater systems.","language":"English","publisher":"Springer","doi":"10.1007/PL00010973","issn":"14312174","usgsCitation":"Chapelle, F.H., 2000, The significance of microbial processes in hydrogeology and geochemistry: Hydrogeology Journal, v. 8, no. 1, p. 41-46, https://doi.org/10.1007/PL00010973.","productDescription":"6 p.","startPage":"41","endPage":"46","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":230442,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb031e4b08c986b324cb5","contributors":{"authors":[{"text":"Chapelle, F. H.","contributorId":101697,"corporation":false,"usgs":true,"family":"Chapelle","given":"F.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":392431,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70022169,"text":"70022169 - 2000 - Fractionation of selenium isotopes during bacterial respiratory reduction of selenium oxyanions","interactions":[],"lastModifiedDate":"2018-12-12T08:49:02","indexId":"70022169","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Fractionation of selenium isotopes during bacterial respiratory reduction of selenium oxyanions","docAbstract":"Reduction of selenium oxyanions by microorganisms is an important process in the biogeochemical cycling of selenium. Numerous bacteria can reduce Se oxyanions, which are used as electron acceptors during the oxidation of organic matter in anoxic environments. In this study, we used a double spike (82Se and 74Se) thermal ionization mass spectrometry technique to quantify the isotopic fractionation achieved by three different species of anaerobic bacteria capable of accomplishing growth by respiratory reduction of selenate [SeO42− or Se(VI)] or selenite [SeO32− or Se(IV)] to Se(IV) or elemental selenium [Se(0)] coupled with the oxidation of lactate. Isotopic discrimination in these closed system experiments was evaluated by Rayleigh fractionation equations and numerical models. Growing cultures of Bacillus selenitireducens, a haloalkaliphile capable of growth using Se(IV) as an electron acceptor, induced a 80Se/76Se fractionation of −8.0 ± 0.4‰ (instantaneous ϵ value) during reduction of Se(IV) to Se(0). With Bacillus arsenicoselenatis, a haloalkaliphile capable of growth using Se(VI) as an electron acceptor, fractionations of −5.0 ± 0.5‰ and −6.0 ± 1.0‰ were observed for reduction of Se(VI) to Se(IV) and reduction of Se(IV) to Se(0), respectively. In growing cultures of Sulfurospirillum barnesii, a freshwater species capable of growth using Se(VI), fractionation was small initially, but near the end of the log growth phase, it increased to −4.0 ± 1.0‰ and −8.4 ± 0.4‰ for reduction of Se(VI) to Se(IV) and reduction of Se(IV) to Se(0), respectively. Washed cell suspensions of S. barnesii induced fractionations of −1.1 ± 0.4‰ during Se(VI) reduction, and −9.1 ± 0.5% for Se(IV) reduction, with some evidence for smaller values (e.g., −1.7‰) in the earliest-formed Se(0) results. These results demonstrate that dissimilatory reduction of selenate or selenite induces significant isotopic fractionation, and suggest that significant Se isotope ratio variation will be found in nature.
No abstract available.
","language":"English","publisher":"Wiley","doi":"10.1002/1099-1085(20001030)14:15<2797::AID-HYP402>3.0.CO;2-6","issn":"08856087","usgsCitation":"Bencala, K., 2000, Hyporheic zone hydrological processes: Hydrological Processes, v. 14, no. 15, p. 2797-2798, https://doi.org/10.1002/1099-1085(20001030)14:15<2797::AID-HYP402>3.0.CO;2-6.","productDescription":"2 p.","startPage":"2797","endPage":"2798","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":230625,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"14","issue":"15","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a37bee4b0c8380cd61111","contributors":{"authors":[{"text":"Bencala, K.E.","contributorId":105312,"corporation":false,"usgs":true,"family":"Bencala","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":392165,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70022058,"text":"70022058 - 2000 - Water quality degradation effects on freshwater availability: Impacts of human activities","interactions":[],"lastModifiedDate":"2022-06-28T15:37:25.188589","indexId":"70022058","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3713,"text":"Water International","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Water quality degradation effects on freshwater availability: Impacts of human activities","title":"Water quality degradation effects on freshwater availability: Impacts of human activities","docAbstract":"The quality of freshwater at any point on the landscape reflects the combined effects of many processes along water pathways. Human activities on all spatial scales affect both water quality and quantity. Alteration of the landscape and associated vegetation has not only changed the water balance, but typically has altered processes that control water quality. Effects of human activities on a small scale are relevant to an entire drainage basin. Furthermore, local, regional, and global differences in climate and water flow are considerable, causing varying effects of human activities on land and water quality and quantity, depending on location within a watershed, geology, biology, physiographic characteristics, and climate. These natural characteristics also greatly control human activities, which will, in turn, modify (or affect) the natural composition of water. One of the most important issues for effective resource management is recognition of cyclical and cascading effects of human activities on the water quality and quantity along hydrologic pathways. The degradation of water quality in one part of a watershed can have negative effects on users downstream. Everyone lives downstream of the effects of some human activity. An extremely important factor is that substances added to the atmosphere, land, and water generally have relatively long time scales for removal or clean up. The nature of the substance, including its affinity for adhering to soil and its ability to be transformed, affects the mobility and the time scale for removal of the substance. Policy alone will not solve many of the degradation issues, but a combination of policy, education, scientific knowledge, planning, and enforcement of applicable laws can provide mechanisms for slowing the rate of degradation and provide human and environmental protection. Such an integrated approach is needed to effectively manage land and water resources.","language":"English","publisher":"Taylor & Francis","doi":"10.1080/02508060008686817","issn":"02508060","usgsCitation":"Peters, N.E., and Meybeck, M., 2000, Water quality degradation effects on freshwater availability: Impacts of human activities: Water International, v. 25, no. 2, p. 185-193, https://doi.org/10.1080/02508060008686817.","productDescription":"9 p.","startPage":"185","endPage":"193","costCenters":[],"links":[{"id":230775,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc893e4b08c986b32c9d3","contributors":{"authors":[{"text":"Peters, Norman E. nepeters@usgs.gov","contributorId":1324,"corporation":false,"usgs":true,"family":"Peters","given":"Norman","email":"nepeters@usgs.gov","middleInitial":"E.","affiliations":[{"id":316,"text":"Georgia Water Science Center","active":true,"usgs":true}],"preferred":true,"id":392201,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Meybeck, Michel","contributorId":43521,"corporation":false,"usgs":true,"family":"Meybeck","given":"Michel","email":"","affiliations":[],"preferred":false,"id":392202,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70022184,"text":"70022184 - 2000 - Habitat conservation and creation: Invoking the flood-pulse concept to enhance fisheries in the lower Mississippi River","interactions":[],"lastModifiedDate":"2012-03-12T17:19:45","indexId":"70022184","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Habitat conservation and creation: Invoking the flood-pulse concept to enhance fisheries in the lower Mississippi River","docAbstract":"Analysis of four years of growth data failed to identify a single temperature or hydrologic variable that consistently accounted for variation in annual growth of catfishes (Ictaluridae). Instead, a composite variable that measured duration of floodplain inundation when water temperature exceeded minima for active feeding was directly related to growth. Results indicated that floodplain inundation have provided little direct energetic benefit to fishes when water temperatures were sub-optimal for active feeding, but floodplain resources were exploited when thermal conditions were sufficient for active feeding and growth. Thus, the flood-pulse concept applies to the lower Mississippi River (LMR) when modified to consider temperature. Managing the existing leveed floodplain to prolong inundation, increase water temperatures during spring flooding, and maintain connectivity of floodplain habitats with the main river channel should benefit fish production in the LMR.","largerWorkTitle":"Polskie Archiwum Hydrobiologii","language":"English","issn":"00323764","usgsCitation":"Schramm, H., Eggleton, M., and Mayo, R., 2000, Habitat conservation and creation: Invoking the flood-pulse concept to enhance fisheries in the lower Mississippi River, in Polskie Archiwum Hydrobiologii, v. 47, no. 1, p. 45-62.","startPage":"45","endPage":"62","numberOfPages":"18","costCenters":[],"links":[{"id":230819,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2f05e4b0c8380cd5ca0e","contributors":{"authors":[{"text":"Schramm, H.L. Jr.","contributorId":103823,"corporation":false,"usgs":true,"family":"Schramm","given":"H.L.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":392653,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eggleton, M.A.","contributorId":40370,"corporation":false,"usgs":true,"family":"Eggleton","given":"M.A.","affiliations":[],"preferred":false,"id":392652,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mayo, R.M.","contributorId":14972,"corporation":false,"usgs":true,"family":"Mayo","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":392651,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70022179,"text":"70022179 - 2000 - Methyl-mercury degradation pathways: A comparison among three mercury impacted ecosystems","interactions":[],"lastModifiedDate":"2018-12-12T08:59:14","indexId":"70022179","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Methyl-mercury degradation pathways: A comparison among three mercury impacted ecosystems","docAbstract":"We examined microbial methylmercury (MeHg) degradation in sediment of the Florida Everglades, Carson River (NV), and San Carlos Creek (CA), three freshwater environments that differ in the extent and type of mercury contamination and sediment biogeochemistry. Degradation rate constant (kdeg) values increased with total mercury (Hgt) contamination both among and within ecosystems. The highest kdeg's (2.8−5.8 d-1) were observed in San Carlos Creek, at acid mine drainage impacted sites immediately downstream of the former New Idria mercury mine, where Hgt ranged from 4.5 to 21.3 ppm (dry wt). A reductive degradation pathway (presumably mer-detoxification) dominated degradation at these sites, as indicated by the nearly exclusive production of 14CH4 from 14C-MeHg, under both aerobic and anaerobic conditions. At the upstream control site, and in the less contaminated ecosystems (e.g. the Everglades), kdeg's were low (≤0.2 d-1) and oxidative demethylation (OD) dominated degradation, as evident from 14CO2production. kdeg increased with microbial CH4 production, organic content, and reduced sulfur in the Carson River system and increased with decreasing pH in San Carlos Creek. OD associated CO2 production increased with pore-water SO42- in Everglades samples but was not attributable to anaerobic methane oxidation, as has been previously proposed. This ecosystem comparison indicates that severely contaminated sediments tend to have microbial populations that actively degrade MeHg via mer-detoxification, whereas OD occurs in heavily contaminated sediments as well but dominates in those less contaminated.
As part of the effort to restore the ∼10 000-km2 Everglades drainage in southern Florida, USA, we developed spatially explicit species index (SESI) models of a number of species and species groups. In this paper we describe the methodology and results of three such models: those for the Cape Sable Seaside Sparrow and the Snail Kite, and the species group model of long-legged wading birds. SESI models are designed to produce relative comparisons of one management alternative to a base scenario or to another alternative. The model outputs do not provide an exact quantitative prediction of future biotic group responses, but rather, when applying the same input data and different hydrologic plans, the models provide the best available means to compare the relative response of the biotic groups. We compared four alternative hydrologic management scenarios to a base scenario (i.e., predicted conditions assuming that current water management practices continue). We ranked the results of the comparisons for each set of models. No one scenario was beneficial to all species; however, they provide a uniform assessment, based on the best available observational information, of relative species responses to alternative water-management plans. As such, these models were used extensively in the restoration planning.
","language":"English","publisher":"Ecological Society of America","doi":"10.1890/1051-0761(2000)010[1849:LBSESI]2.0.CO;2","issn":"10510761","usgsCitation":"Curnutt, J.L., Comiskey, J., Nott, M., and Gross, L., 2000, Landscape-based spatially explicit species index models for everglades restoration: Ecological Applications, v. 10, no. 6, p. 1849-1860, https://doi.org/10.1890/1051-0761(2000)010[1849:LBSESI]2.0.CO;2.","productDescription":"12 p.","startPage":"1849","endPage":"1860","costCenters":[],"links":[{"id":230666,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Big Cypress National Preserve, Everglades National Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -81.38534545898438,\n 26.257704515406648\n ],\n [\n -81.38259887695312,\n 26.236765673594668\n ],\n [\n -81.43341064453125,\n 26.237997474610452\n ],\n [\n -81.43203735351562,\n 26.2145910237943\n ],\n [\n -81.55288696289062,\n 26.204734267107604\n ],\n [\n -81.61056518554688,\n 26.199805575765804\n ],\n [\n -81.72317504882812,\n 26.168996529230178\n ],\n [\n -81.72317504882812,\n 25.888878582127084\n ],\n [\n -81.67373657226562,\n 25.830797170738858\n ],\n [\n -81.64764404296875,\n 25.88393659458397\n ],\n [\n -81.48422241210938,\n 25.80112757645447\n ],\n [\n -81.3702392578125,\n 25.697225529877763\n ],\n [\n -81.27273559570311,\n 25.62914524992192\n ],\n [\n -81.221923828125,\n 25.507742380531404\n ],\n [\n -81.15600585937499,\n 25.37256835379414\n ],\n [\n -81.18621826171875,\n 25.224820176765036\n ],\n [\n -81.15188598632812,\n 25.152743274854956\n ],\n [\n -81.09695434570312,\n 25.10798445491342\n ],\n [\n -80.71792602539062,\n 25.111714982906328\n ],\n [\n -80.48721313476562,\n 25.191272441616\n ],\n [\n -80.43777465820312,\n 25.25960064916269\n ],\n [\n -80.44464111328125,\n 25.29437116258816\n ],\n [\n -80.57098388671874,\n 25.2918878849706\n ],\n [\n -80.56549072265625,\n 25.41722976060518\n ],\n [\n -80.54489135742188,\n 25.575891798572776\n ],\n [\n -80.4803466796875,\n 25.667522551344298\n ],\n [\n -80.48446655273438,\n 25.890114046690094\n ],\n [\n -80.43090820312499,\n 25.94816628853973\n ],\n [\n -80.43365478515625,\n 26.10612083235552\n ],\n [\n -80.44326782226562,\n 26.145576207592274\n ],\n [\n -80.34576416015625,\n 26.12091815959972\n ],\n [\n -80.34439086914062,\n 26.144343428856374\n ],\n [\n -80.29220581054688,\n 26.1899475672235\n ],\n [\n -80.28945922851562,\n 26.351267272877074\n ],\n [\n -80.24139404296875,\n 26.341422119377988\n ],\n [\n -80.20156860351562,\n 26.48532391504829\n ],\n [\n -80.20706176757812,\n 26.518506504902675\n ],\n [\n -80.23040771484375,\n 26.583614813585854\n ],\n [\n -80.29632568359375,\n 26.686729520004036\n ],\n [\n -80.44876098632812,\n 26.681821407205977\n ],\n [\n -80.46798706054688,\n 26.517277690994334\n ],\n [\n -80.49819946289062,\n 26.39925039312297\n ],\n [\n -80.58609008789062,\n 26.395560091430248\n ],\n [\n -80.65750122070312,\n 26.493927728762568\n ],\n [\n -80.80581665039062,\n 26.496385842983383\n ],\n [\n -80.8538818359375,\n 26.480407161007275\n ],\n [\n -80.958251953125,\n 26.466885003671486\n ],\n [\n -80.98434448242186,\n 26.436146919246013\n ],\n [\n -80.9857177734375,\n 26.261399213411483\n ],\n [\n -81.38534545898438,\n 26.257704515406648\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"10","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a441fe4b0c8380cd6689d","contributors":{"authors":[{"text":"Curnutt, J. L.","contributorId":97845,"corporation":false,"usgs":false,"family":"Curnutt","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":392615,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Comiskey, J.","contributorId":54758,"corporation":false,"usgs":true,"family":"Comiskey","given":"J.","email":"","affiliations":[],"preferred":false,"id":392612,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nott, M.P.","contributorId":78677,"corporation":false,"usgs":true,"family":"Nott","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":392614,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gross, L.J.","contributorId":65030,"corporation":false,"usgs":true,"family":"Gross","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":392613,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1008394,"text":"1008394 - 2000 - A dynamic landscape model for fish in the Everglades and its application to restoration","interactions":[],"lastModifiedDate":"2016-01-21T12:49:12","indexId":"1008394","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1458,"text":"Ecological Modelling","active":true,"publicationSubtype":{"id":10}},"title":"A dynamic landscape model for fish in the Everglades and its application to restoration","docAbstract":"A model (ALFISH) for fish functional groups in freshwater marshes of the greater Everglades area of southern Florida has been developed. Its main objective is to assess the spatial pattern of fish densities through time across freshwater marshes. This model has the capability of providing a dynamic measure of the spatially-explicit food resources available to wading birds. ALFISH simulates two functional groups, large and small fish, where the larger ones can prey on the small fish type. Both functional groups are size-structured. The marsh landscape is modeled as 500×500 m spatial cells on a grid across southern Florida. A hydrology model predicts water levels in the spatial cells on 5-day time steps. Fish populations spread across the marsh during flooded conditions and either retreat into refugia (alligator ponds), move to other spatial cells, or die if their cell dries out. ALFISH has been applied to the evaluation of alternative water regulation scenarios under the Central and South Florida Comprehensive Project Review Study. The objective of this Review Study is to compare alternative methods for restoring historical ecological conditions in southern Florida. ALFISH has provided information on which plans are most are likely to increase fish biomass and its availability to wading bird populations.
","language":"English","publisher":"Elsevier","doi":"10.1016/S0304-3800(99)00202-1","usgsCitation":"Gaff, H., DeAngelis, D., Gross, L., Salinas, R., and Shorrosh, M., 2000, A dynamic landscape model for fish in the Everglades and its application to restoration: Ecological Modelling, v. 127, no. 1, p. 33-52, https://doi.org/10.1016/S0304-3800(99)00202-1.","productDescription":"20 p.","startPage":"33","endPage":"52","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":132694,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"127","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6aecc2","contributors":{"authors":[{"text":"Gaff, H.D.","contributorId":12424,"corporation":false,"usgs":true,"family":"Gaff","given":"H.D.","affiliations":[],"preferred":false,"id":317635,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"DeAngelis, D.L. 0000-0002-1570-4057","orcid":"https://orcid.org/0000-0002-1570-4057","contributorId":32470,"corporation":false,"usgs":true,"family":"DeAngelis","given":"D.L.","affiliations":[],"preferred":false,"id":317636,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gross, L.J.","contributorId":65030,"corporation":false,"usgs":true,"family":"Gross","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":317638,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Salinas, R.","contributorId":57804,"corporation":false,"usgs":true,"family":"Salinas","given":"R.","email":"","affiliations":[],"preferred":false,"id":317637,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Shorrosh, M.","contributorId":101611,"corporation":false,"usgs":true,"family":"Shorrosh","given":"M.","email":"","affiliations":[],"preferred":false,"id":317639,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ]}