{"pageNumber":"1386","pageRowStart":"34625","pageSize":"25","recordCount":46733,"records":[{"id":70185458,"text":"70185458 - 1993 - Comparison of Penman-Monteith, Shuttleworth-Wallace, and modified Priestley-Taylor evapotranspiration models for wildland vegetation in semiarid rangeland","interactions":[],"lastModifiedDate":"2019-09-17T10:28:45","indexId":"70185458","displayToPublicDate":"1993-05-01T00:00:00","publicationYear":"1993","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":"Comparison of Penman-Monteith, Shuttleworth-Wallace, and modified Priestley-Taylor evapotranspiration models for wildland vegetation in semiarid rangeland","docAbstract":"

Eddy correlation measurements of sensible and latent heat flux are used with measurements of net radiation, soil heat flux, and other micrometeorological variables to develop the Penman-Monteith, Shuttleworth-Wallace, and modified Priestley-Taylor evapotranspiration models for use in a sparsely vegetated, semiarid rangeland. The Penman-Monteith model, a one-component model designed for use with dense crops, is not sufficiently accurate (r2 = 0.56 for hourly data and r2 = 0.60 for daily data). The Shuttleworth-Wallace model, a two-component logical extension of the Penman-Monteith model for use with sparse crops, performs significantly better (r2 = 0.78 for hourly data and r2 = 0.85 for daily data). The modified Priestley-Taylor model, a one-component simplified form of the Penman potential evapotranspiration model, surprisingly performs as well as the Shuttle worth-Wallace model. The rigorous Shuttleworth-Wallace model predicts that about one quarter of the vapor flux to the atmosphere is from bare-soil evaporation. Further, during daylight hours, the small leaves are sinks for sensible heat produced at the hot soil surface.

","language":"English","publisher":"American Geophysical Union","doi":"10.1029/93WR00333","usgsCitation":"Stannard, D.I., 1993, Comparison of Penman-Monteith, Shuttleworth-Wallace, and modified Priestley-Taylor evapotranspiration models for wildland vegetation in semiarid rangeland: Water Resources Research, v. 29, no. 5, p. 1379-1392, https://doi.org/10.1029/93WR00333.","productDescription":"14 p. ","startPage":"1379","endPage":"1392","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true},{"id":34983,"text":"Contaminant Biology Program","active":true,"usgs":true}],"links":[{"id":338048,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"5","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"58d38d5ee4b0236b68f98f3e","contributors":{"authors":[{"text":"Stannard, David I. distanna@usgs.gov","contributorId":562,"corporation":false,"usgs":true,"family":"Stannard","given":"David","email":"distanna@usgs.gov","middleInitial":"I.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":false,"id":685632,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70128537,"text":"70128537 - 1993 - Proceedings of the fourth conference on research in California's National Parks","interactions":[],"lastModifiedDate":"2014-10-09T13:15:10","indexId":"70128537","displayToPublicDate":"1993-04-01T13:05:26","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"seriesNumber":"National Park Service Transactions and Proceedings Series NPS/NRUX/NRTP-93/9","title":"Proceedings of the fourth conference on research in California's National Parks","docAbstract":"

The papers in this proceedings were selected from the 63 presentations given at the Fourth Biennial Conference on Research in National Parks in California. The overall theme for this meeting was a recurring one: “The Integration of Research into National Park Service Resource Management Decisions.” The conference was held at the University of California, Davis, on 10-12 September 1991 and was sponsored by the National Park Service Cooperative Park Studies Unit and the Institute of Ecology at the University of California, Davis.

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This proceedings highlights a variety of research and resource management efforts to improve the stewardship of our most treasured landscapes. In the future, it will become increasingly more important for federal and state agencies, university scientists and students, and the public to cooperate fully to improve the quantity and quality of science and resource management programs in units of the National Park System. As many of the papers in this proceedings attest, we must look beyond the political boundaries of protected landscapes to incorporate entire ecosystems. Competing resource uses inside and outside parklands must be reexamined to weave a common thread of biological conservation. As scientists, our studies must bridge the gap from plots to landscapes and from landscapes to regions. Our studies must built on information from species and populations to ecosystems and the processes that influence them. The papers in this proceedings are modest but important contribution to those ideals. Each paper represents original research and has been peer-reviewed.

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Many agencies, institutions, and individuals contributed in the development of this product. In the planning stages, National Park Service Western Region scientists provided advice and assistance in structuring the conference format. University of California, Davis, graduate students, directed by Sharon Lynch, assisted with logistics at the meeting, and provided general assistance with the paper sessions. We thank the students, technicians, and support staff who labored unselfishly behind the scenes to collect data and transfer information important to the completion of each paper.

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Financial support for this publication was provided with funds from the Western Region Resource Management and Resource Program and the Washington Office Servicewide Publications Program of the National Park Service. We thank Denny Fenn, Stan Albright, Bruce Kilgore, Dave Cherry, Gene Hester, and Donna O'Leary of the National Park Service and Charles Goldman of the University of California, Davis, Institute of Ecology for their support throughout the development of the proceedings.

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Finally, we are entering into a new age of research in the U.S. Department of the Interior. Recently, plans were announced for the creation of the National Biological Survey, dedicated to improving the quantity and quality of research necessary for the wise stewardship of our natural resources and wildlands. We welcome our new partners and pledge our full support to both the new and old agencies. The papers presented here--and past research efforts in national parks--provide an important stepping stone to the future. While many of us will be transferred administratively to the National Biological Survey, our emotional ties to the National Park Service mission of preserving resources for future generations will remain with us forever.

","language":"English","publisher":"Cooperative Park Studies","publisherLocation":"Davis, CA","usgsCitation":"Veirs, S.D., Stohlgren, T., and Schonewald-Cox, C., 1993, Proceedings of the fourth conference on research in California's National Parks, 132 p.","productDescription":"132 p.","numberOfPages":"132","costCenters":[],"links":[{"id":295162,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5437a3cee4b08a816ca63684","contributors":{"authors":[{"text":"Veirs, Stephen D. Jr.","contributorId":32102,"corporation":false,"usgs":true,"family":"Veirs","given":"Stephen","suffix":"Jr.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":502998,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stohlgren, Thomas","contributorId":23091,"corporation":false,"usgs":true,"family":"Stohlgren","given":"Thomas","affiliations":[],"preferred":false,"id":502997,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schonewald-Cox, Christine","contributorId":52511,"corporation":false,"usgs":true,"family":"Schonewald-Cox","given":"Christine","email":"","affiliations":[],"preferred":false,"id":502999,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70234169,"text":"70234169 - 1993 - GIS mapping of earthquake ground shaking in San Francisco, California","interactions":[],"lastModifiedDate":"2022-08-02T15:15:56.83614","indexId":"70234169","displayToPublicDate":"1993-04-01T10:01:50","publicationYear":"1993","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"GIS mapping of earthquake ground shaking in San Francisco, California","docAbstract":"

Severe earthquakes of the last decade in Mexico, Armenia, and the United States have reemphasized the importance of local geologic site conditions in estimating damage and consequent losses. Recent advances in geographic information system (GIS) technology have created new opportunities for maintaining and integrating extensive spatial databases for applications in seismic hazard analysis. Ground motion data and damage distributions from past earthquakes are combined with GIS databases of geologic information to prepare preliminary maps for inferring input ground motion levels for earthquake resistant design. Maps of bedrock elevation, surface topography, and surface geology are used to develop maps of soil thickness and predominant period. Ground motion attenuation relationships are used to create maps estimating ground shaking intensity for a uniform ground condition. Relationships between geologic characteristics, ground motion amplification, and earthquake intensity are used to produce amplification capability maps. Estimated ground shaking for the uniform ground condition is combined with amplification capability to develop maps predicting regional ground shaking intensity. The methods of predictive GIS mapping described here are useful for estimating characteristics of input ground motion in many urbanized seismic regions of the world.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Structural engineering in natural hazards mitigation","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Structures Congress '93","conferenceDate":"April 19-21, 1993","conferenceLocation":"Irvine, California, United States","language":"English","publisher":"American Society of Civil Engineers","usgsCitation":"King, S., Kiremidjian, A.S., Borcherdt, R.D., and Wentworth, C.M., 1993, GIS mapping of earthquake ground shaking in San Francisco, California, in Structural engineering in natural hazards mitigation, Irvine, California, United States, April 19-21, 1993, p. 259-264.","productDescription":"6 p.","startPage":"259","endPage":"264","costCenters":[{"id":234,"text":"Earthquake Hazards Program","active":true,"usgs":true}],"links":[{"id":404661,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":404660,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://cedb.asce.org/CEDBsearch/record.jsp?dockey=0080615"}],"country":"United States","state":"California","city":"San Francisco","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -122.8106689453125,\n 37.339591851359174\n ],\n [\n -121.87683105468749,\n 37.339591851359174\n ],\n [\n -121.87683105468749,\n 37.9593578107923\n ],\n [\n -122.8106689453125,\n 37.9593578107923\n ],\n [\n -122.8106689453125,\n 37.339591851359174\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"editors":[{"text":"Ang, A. H.-S.","contributorId":294472,"corporation":false,"usgs":false,"family":"Ang","given":"A.","email":"","middleInitial":"H.-S.","affiliations":[{"id":13696,"text":"University of California Irvine","active":true,"usgs":false}],"preferred":false,"id":848075,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Villaverde, R.","contributorId":294473,"corporation":false,"usgs":false,"family":"Villaverde","given":"R.","email":"","affiliations":[{"id":13696,"text":"University of California Irvine","active":true,"usgs":false}],"preferred":false,"id":848076,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"King, S.A.","contributorId":74562,"corporation":false,"usgs":true,"family":"King","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":848071,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kiremidjian, Anne S.","contributorId":60649,"corporation":false,"usgs":true,"family":"Kiremidjian","given":"Anne","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":848072,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Borcherdt, Roger D. 0000-0002-8668-0849 borcherdt@usgs.gov","orcid":"https://orcid.org/0000-0002-8668-0849","contributorId":2373,"corporation":false,"usgs":true,"family":"Borcherdt","given":"Roger","email":"borcherdt@usgs.gov","middleInitial":"D.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":848073,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wentworth, Carl M. 0000-0003-2569-569X cwent@usgs.gov","orcid":"https://orcid.org/0000-0003-2569-569X","contributorId":1178,"corporation":false,"usgs":true,"family":"Wentworth","given":"Carl","email":"cwent@usgs.gov","middleInitial":"M.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":848074,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70186319,"text":"70186319 - 1993 - Syn­thesis of Cretaceous/fertiary boundary studies at Hole 807C","interactions":[],"lastModifiedDate":"2017-04-03T17:46:01","indexId":"70186319","displayToPublicDate":"1993-04-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Syn­thesis of Cretaceous/fertiary boundary studies at Hole 807C","docAbstract":"

Paleontological, stable isotopic, trace elemental abundance, and magnetostratigraphic studies have been performed on limestones spanning the Cretaceous/Tertiary boundary transition at Ocean Drilling Program (ODP) Hole 807C. Paleontological evidence exists for considerable resedimentation, which we attribute to the fact that Hole 807C is located in a basement graben. Age estimates based on planktonic foraminiferal biostratigraphy, as well as magnetostratigraphy, indicate that sedimentation rates could have been on the order of 12-14 m/m.y. This is significantly higher than those documented in other important Deep Sea Drilling Project (DSDP) and ODP Cretaceous/Tertiary boundary sections using the same age control points (e.g., DSDP Hole 577 and ODP Hole 690B), although not as high as those documented from DSDP Hole 524. The expanded nature of this succession has resulted in the Cretaceous/Tertiary boundary δ 1 3C decrease occurring over approximately a 9-m interval. Ir analysis of these sediments do not show a single large anomaly, as has been found in other Cretaceous/Tertiary boundary sections, but trivial background levels instead. Ce data support the hypothesis that this section has been expanded by secondary sedimentological processes.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the Ocean Drilling Program Scientific Results","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","usgsCitation":"Corfield, R.M., Sliter, W.V., Silva, I.P., Tarduno, J.A., Schmitt, R.A., Liu, Y., Wise, S.W., Mao, S., Cartlidge, J.E., and Berger, W.H., 1993, Syn­thesis of Cretaceous/fertiary boundary studies at Hole 807C, in Proceedings of the Ocean Drilling Program Scientific Results, p. 745-751.","productDescription":"7 p. ","startPage":"745","endPage":"751","costCenters":[],"links":[{"id":339110,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58e35f91e4b09da67997ed0e","contributors":{"authors":[{"text":"Corfield, Richard M.","contributorId":190387,"corporation":false,"usgs":false,"family":"Corfield","given":"Richard","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":688312,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sliter, William V.","contributorId":190293,"corporation":false,"usgs":false,"family":"Sliter","given":"William","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":688313,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Silva, Isabella Premolia","contributorId":190388,"corporation":false,"usgs":false,"family":"Silva","given":"Isabella","email":"","middleInitial":"Premolia","affiliations":[],"preferred":false,"id":688314,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tarduno, John A.","contributorId":190389,"corporation":false,"usgs":false,"family":"Tarduno","given":"John","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":688315,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schmitt, Roman A.","contributorId":190390,"corporation":false,"usgs":false,"family":"Schmitt","given":"Roman","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":688316,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Liu, Yun-Gang","contributorId":190391,"corporation":false,"usgs":false,"family":"Liu","given":"Yun-Gang","email":"","affiliations":[],"preferred":false,"id":688317,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wise, Sherwood W. Jr.","contributorId":36052,"corporation":false,"usgs":true,"family":"Wise","given":"Sherwood","suffix":"Jr.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":688318,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Mao, Shaozhi","contributorId":190392,"corporation":false,"usgs":false,"family":"Mao","given":"Shaozhi","email":"","affiliations":[],"preferred":false,"id":688319,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Cartlidge, Julie E.","contributorId":190393,"corporation":false,"usgs":false,"family":"Cartlidge","given":"Julie","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":688320,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Berger, Wolf H.","contributorId":190394,"corporation":false,"usgs":false,"family":"Berger","given":"Wolf","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":688321,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}} ,{"id":1008014,"text":"1008014 - 1993 - Reproductive characteristics of female sea otters","interactions":[],"lastModifiedDate":"2024-09-27T15:42:14.878087","indexId":"1008014","displayToPublicDate":"1993-04-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2671,"text":"Marine Mammal Science","active":true,"publicationSubtype":{"id":10}},"title":"Reproductive characteristics of female sea otters","docAbstract":"

Several important aspects of reproduction in the female sea otter, such as gestation, pupping frequency, period of pup dependency, and annual pupping rate, were unclear when this study was begun. We present data from 75 tagged adult females that indicate gestation is variable, but on average is about 6 months, the length of pup dependency is 6 mo, thus the pupping interval is usually 12–13 mo. Most females breed for the first time in their fifth year of life. About 85–90% of adult females pup in a given year.

","language":"English","publisher":"Wiley","doi":"10.1111/j.1748-7692.1993.tb00440.x","usgsCitation":"Jameson, R.J., and Johnson, A.M., 1993, Reproductive characteristics of female sea otters: Marine Mammal Science, v. 9, no. 2, p. 156-167, https://doi.org/10.1111/j.1748-7692.1993.tb00440.x.","productDescription":"12 p.","startPage":"156","endPage":"167","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":131055,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska, 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\"}}]}","volume":"9","issue":"2","noUsgsAuthors":false,"publicationDate":"2006-08-26","publicationStatus":"PW","scienceBaseUri":"4f4e4a55e4b07f02db62c862","contributors":{"authors":[{"text":"Jameson, Ronald J.","contributorId":17938,"corporation":false,"usgs":true,"family":"Jameson","given":"Ronald","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":316546,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, Ancel M.","contributorId":91543,"corporation":false,"usgs":false,"family":"Johnson","given":"Ancel","email":"","middleInitial":"M.","affiliations":[{"id":6987,"text":"U.S. Fish and Wildlife Sevice","active":true,"usgs":false}],"preferred":false,"id":316545,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70231542,"text":"70231542 - 1993 - Radium isotope geochemistry of thermal waters, Yellowstone National Park, Wyoming, USA","interactions":[],"lastModifiedDate":"2022-05-12T16:42:48.977563","indexId":"70231542","displayToPublicDate":"1993-03-01T11:17:16","publicationYear":"1993","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":"Radium isotope geochemistry of thermal waters, Yellowstone National Park, Wyoming, USA","docAbstract":"

Radium isotope activities (226Ra, 228Ra, and 224Ra), chemical compositions, and sulfur isotope ratios in sulfate were determined for water samples from thermal areas in Yellowstone National Park, Wyoming. Activities of 226Ra in these waters range from <0.2 to 37.9 dpm/kg. Activity ratios of 228Ra226Ra\">228Ra226Ra range from 0.26 to 14.2, and those of 224Ra228Ra\">224Ra228Ra range from 0.73 to 3.1. Radium concentrations are inversely correlated with aquifer equilibration temperatures (estimated from dissolved silica concentrations), while[RaBa\">RaBa]aq and 228Ra226Ra\">228Ra226Ra activity ratios depend upon UBa\">UBa and ThU\">ThU ratios in aquifer rocks. Major controls on Ra concentration in Yellowstone thermal waters are inferred to be

1.

(1) barite saturation (at Morris Geyser Basin, Mammoth Hot Springs, and other northern areas) and

2.

(2) zeolitewater ion exchange (at Upper Geyser Basin). The data are consistent with a model in which

3.

(1) radium and barium are supplied to water by bulk dissolution of aquifer rock, and

4.

(2) chemical equilibration of water with rock is rapid relative to the 1602 year half-life of 226Ra. The 228Ra226Ra\">228Ra226Ra activity ratios of the waters may in some cases reflect surface enrichments of 232Th and/or may indicate that α-recoil input of 228Ra is rapid relative to water-rock chemical equilibration. Activity ratios of 224Ra228Ra\">224Ra228Ra indicate a nearly ubiquitous 224Ra excess that generally increases with decreasing pH. Near-surface (≤100 m) thermal water flow velocities at Mammoth Hot Springs are estimated from 224Ra228Ra\">224Ra228Ra variation to be ≥ 1 m h−1.

","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(93)90057-4","usgsCitation":"Sturchio, N., and Bohlke, J., 1993, Radium isotope geochemistry of thermal waters, Yellowstone National Park, Wyoming, USA: Geochimica et Cosmochimica Acta, v. 57, p. 1203-1214, https://doi.org/10.1016/0016-7037(93)90057-4.","productDescription":"12 p.","startPage":"1203","endPage":"1214","costCenters":[],"links":[{"id":400584,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wyoming","otherGeospatial":"Yellowstone National Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.03881835937499,\n 43.89393401411192\n ],\n [\n -109.44580078125,\n 43.89393401411192\n ],\n [\n -109.44580078125,\n 45.01918507438176\n ],\n [\n -111.03881835937499,\n 45.01918507438176\n ],\n [\n -111.03881835937499,\n 43.89393401411192\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"57","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Sturchio, N.C.","contributorId":16580,"corporation":false,"usgs":true,"family":"Sturchio","given":"N.C.","affiliations":[],"preferred":false,"id":842968,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bohlke, John K. 0000-0001-5693-6455","orcid":"https://orcid.org/0000-0001-5693-6455","contributorId":6894,"corporation":false,"usgs":true,"family":"Bohlke","given":"John K.","affiliations":[],"preferred":false,"id":842969,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70201440,"text":"wdrOK921 - 1993 - Water resources data, Oklahoma, water year 1992. Volume 1. Arkansas River basin","interactions":[],"lastModifiedDate":"2021-03-17T00:43:35.587786","indexId":"wdrOK921","displayToPublicDate":"1993-02-10T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":340,"text":"Water Data Report","code":"WDR","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"OK-92-1","title":"Water resources data, Oklahoma, water year 1992. Volume 1. Arkansas River basin","docAbstract":"

No abstract available. 

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wdrOK921","usgsCitation":"U.S. Geological Survey, 1993, Water resources data, Oklahoma, water year 1992. Volume 1. 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\"}}]}","noUsgsAuthors":false,"publicationStatus":"PW"} ,{"id":70018252,"text":"70018252 - 1993 - Comparison of the petrography, palynology and paleobotany of the Stockton coal bed, West Virginia and implications for paleoenvironmental interpretations","interactions":[],"lastModifiedDate":"2025-03-13T15:38:29.969487","indexId":"70018252","displayToPublicDate":"1993-02-05T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of the petrography, palynology and paleobotany of the Stockton coal bed, West Virginia and implications for paleoenvironmental interpretations","docAbstract":"

The Stockton coal bed (Middle Pennsylvanian) is a relatively high ash coal composed primarily of moderately thin banded, sparsely thin banded, and nonbanded coal (splint and cannel coal). Comparisons of petrographic, palynologic, and paleobotanic data gathered from the same sample sets from a single column of the Stockton coal bed indicate that compositional correspondences among the sets exist regardless of coal type. Some correspondences are believed to exist because of original plant constituents and others because of the paleoenvironment of peat formation. Using some combination of these data is critical when interpreting paleoenvironmental conditions because (1) a direct correspondence is lacking between many of the data and (2) each of the three data sets provides a unique and important perspective on the paleomire. The Stockton paleomire in the area of this study supported a diverse flora that consisted of both small and arboreous lycopsids, small ferns and tree ferns, calamites, cordaites, and pteridosperms. There appear to have been two successions of Lycospora spore-dominated, vitrinite-rich, liptinite-poor peat formation, which were followed by inertinite-rich peat formation marked by a tree fern-dominant spore assemblage and abundant unidentifiable plant tissues. These are interpreted to be two water-laden or topogenous peat formational stages followed by slightly domed, better drained peat formation.

","language":"English","publisher":"Elsevier","doi":"10.1016/0146-6380(93)90034-9","usgsCitation":"Pierce, B., Stanton, R., and Eble, C.F., 1993, Comparison of the petrography, palynology and paleobotany of the Stockton coal bed, West Virginia and implications for paleoenvironmental interpretations: Organic Geochemistry, v. 20, no. 2, p. 149-166, https://doi.org/10.1016/0146-6380(93)90034-9.","productDescription":"18 p.","startPage":"149","endPage":"166","costCenters":[],"links":[{"id":227412,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"West Virginia","county":"Kanawha 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Brenda","contributorId":29940,"corporation":false,"usgs":true,"family":"Pierce","given":"Brenda","affiliations":[],"preferred":false,"id":379012,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stanton, R.W.","contributorId":19164,"corporation":false,"usgs":true,"family":"Stanton","given":"R.W.","email":"","affiliations":[],"preferred":false,"id":379013,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Eble, Cortland F.","contributorId":255518,"corporation":false,"usgs":false,"family":"Eble","given":"Cortland","email":"","middleInitial":"F.","affiliations":[{"id":51568,"text":"Kentucky Geological Survey, U. of Kentucky","active":true,"usgs":false}],"preferred":false,"id":379014,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70128312,"text":"70128312 - 1993 - Fire history of southeastern Glacier National Park: Missouri River Drainage","interactions":[],"lastModifiedDate":"2014-10-07T13:14:42","indexId":"70128312","displayToPublicDate":"1993-02-01T12:49:00","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"seriesNumber":"Final Report PX 1430-2-0787","title":"Fire history of southeastern Glacier National Park: Missouri River Drainage","docAbstract":"

In 1982, Glacier National Park (GNP) initiated long-term studies to document the fire history of all forested lands in the 410,000 ha. park. To date, studies have been conducted for GNP west of the Continental Divide (Barrett et al. 1991), roughly half of the total park area. These and other fire history studies in the Northern Rockies (Arno 1976, Sneck 1977, Arno 1980, Romme 1982, Romme and Despain 1989, Barrett and Arno 1991, Barrett 1993a, Barrett 1993b) have shown that fire history data can be an integral element of fire management planning, particularly wen natiral fire plans are being developed for parks and wilderness. The value of site specific fire history data is apparent when considering study results for lodgepole pin (Pinus contorta var. latifolia) forests. Lodgepole pine is a major subalpine type in the Northern Rockies and such stands experiences a wide range of presettlement fire patterns. On relatively warm-dry sites at lower elevations, such as in GNP's North Fork drainage (Barrett et al. 1991), short to moderately long interval (25-150 yr) fires occurred in a mixed severity pattern ranging from non-lethal underburns to total stand replacement (Arno 1976, Sneck 1977, Barrett and Arno 1991). Markedly different fire history occurred at high elevation lodgepole pine stands on highly unproductive sites, such as on Yellowstone National Park's (YNP) subalpine plateau. Romme (1982) found that, on some sites, stand replacing fires recurred after very long intervals (300-400 yr), and that non-lethal surface fires were rare. For somewhat more productive sites in the Absaroka Mountains in YNP, Barrett (1993a) estimated a 200 year mean replacement interval, in a pattern similar to that found in steep mountain terrain elsewhere, such as in the Middle Fork Flathead River drainage (Barrett et al. 1991, Sneck 1977).

\n
\n

Aside from post-1900 written records (ayres 1900; fire atlas data on file, GNP Archives Div. and GNP Resources Mgt. Div.), little fire history information existed for GNP's east-side forests, which are dominated primarily by lodgepole pine. In fall 1992, the park initiated a study to determine the fire history of the Missouri River drainage portion of southeastern GNP. Given the known variation in pre-1900 fire patterns for lodgepole pine, this study was seen as a potentially important contribution to GNP's Fire Management Plan, and to the expanding data base of fire history studies in the region. Resource managers sought this information to assist their development of appropriate fire management strategies for the east-side forests, and the fire history data also would be a useful interactive component of the park's Geographic Information System (GIS). Primary objectives were to: 1) determine pre-1900 fire periodicities, severities, burning patterns, and post-fire succession for major forest types, and 2) document and map the forest age class mosaic, reflecting the history of stand replacing fires at the landscape level of analysis. Secondary objectives were to interpret the possible effects of modern fire suppression on area forests, and to determine fire regime patterns relative to other lodgepole pine ecosystems in the Northern Rockies.

","language":"English","usgsCitation":"Barrett, S.W., 1993, Fire history of southeastern Glacier National Park: Missouri River Drainage, 43 p.","productDescription":"43 p.","numberOfPages":"43","costCenters":[],"links":[{"id":295021,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Montana","otherGeospatial":"Glacier National Park","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"543500a7e4b0a4f4b46a2395","contributors":{"authors":[{"text":"Barrett, Stephen W.","contributorId":32848,"corporation":false,"usgs":true,"family":"Barrett","given":"Stephen","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":502859,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70207890,"text":"70207890 - 1993 - Internal structure of the Sierra Nevada batholith based on specific gravity and gravity measurements","interactions":[],"lastModifiedDate":"2020-01-16T16:55:54","indexId":"70207890","displayToPublicDate":"1993-01-16T16:47:49","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Internal structure of the Sierra Nevada batholith based on specific gravity and gravity measurements","docAbstract":"

About 6,000 specific‐gravity (SG) measurements of samples collected from nearly 200 granitic plutons comprising the central Sierra Nevada batholith yield a SG contour map across the batholith from 36.25° to 38° north latitude. With notable exceptions, SG decreases from values generally greater than 2.7 in the west to less than 2.6 over a few small areas of high‐silica, high‐potassium granites near the east edge. A good correlation between measured SG and analyzed weight percent SiO2 enables estimation of average silica variations across the batholith. The average SG is 2.69 corresponding to an average of 68 wt. % SiO2 for the 18,000 km² central part of the batholith.

A 1‐km gridded version of the SG measurements has been used to generate a series of synthetic gravity maps, assuming that the SG of rocks at the surface extends unchanged to various depths. The synthetic map computed for a depth of 10 km shows the best correspondence with the isostatic residual gravity map indicating that variations in the observed gravity residuals are largely caused by SG variations of the plutonic rocks exposed at the surface that apparently extend downward to an average depth of about 10 km.

Although the 10‐km synthetic gravity map gives the best overall fit to the observed gravity data, comparison of individual anomalies indicates that the bottoms of the plutons as defined by SG variations at the surface are generally shallower along the west edge of the Sierra Nevada (7±2 km) and deeper in the younger and more felsic eastern part (12±3 km). These depths do not necessarily represent a distinct base of the Sierra Nevada batholith. They may indicate the depth below which density homogenization occurs, either by igneous, or possibly, structural processes.

","language":"English","publisher":"American Geophysical Union","doi":"10.1029/93GL01379","usgsCitation":"Oliver, H., Moore, B., and Sikora, R.F., 1993, Internal structure of the Sierra Nevada batholith based on specific gravity and gravity measurements: Geophysical Research Letters, v. 20, no. 20, p. 2179-2182, https://doi.org/10.1029/93GL01379.","productDescription":"4 p.","startPage":"2179","endPage":"2182","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":371333,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Sierra Nevada batholith","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120.08056640625,\n 36.13787471840729\n ],\n [\n -117.94921874999999,\n 36.13787471840729\n ],\n [\n -117.94921874999999,\n 38.272688535980976\n ],\n [\n -120.08056640625,\n 38.272688535980976\n ],\n [\n -120.08056640625,\n 36.13787471840729\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"20","issue":"20","noUsgsAuthors":false,"publicationDate":"2012-12-07","publicationStatus":"PW","contributors":{"authors":[{"text":"Oliver, H.W.","contributorId":16703,"corporation":false,"usgs":true,"family":"Oliver","given":"H.W.","email":"","affiliations":[],"preferred":false,"id":779657,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moore, Bryan bmoore@usgs.gov","contributorId":2417,"corporation":false,"usgs":true,"family":"Moore","given":"Bryan","email":"bmoore@usgs.gov","affiliations":[],"preferred":true,"id":779658,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sikora, R. F.","contributorId":21923,"corporation":false,"usgs":true,"family":"Sikora","given":"R.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":779659,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":25172,"text":"25172 - 1993 - Conterminous U.S. land cover characteristics data set 1990 prototype","interactions":[],"lastModifiedDate":"2014-07-14T16:34:30","indexId":"25172","displayToPublicDate":"1993-01-01T16:33:53","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Conterminous U.S. land cover characteristics data set 1990 prototype","docAbstract":"No abstract available.","language":"English","publisher":"EROS Data Center, U.S. Geological Survey","publisherLocation":"Sioux Falls, SD","doi":"10.3133/25172","usgsCitation":"Water Resources Division, U.S. Geological Survey, 1993, Conterminous U.S. land cover characteristics data set 1990 prototype, 1 computer laser optical disk, https://doi.org/10.3133/25172.","productDescription":"1 computer laser optical disk","costCenters":[],"links":[{"id":290009,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53c4fc07e4b0b58d96eeb575","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":529192,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70094776,"text":"70094776 - 1993 - Preliminary results of a helicopter electromagnetic and magnetic survey of the Oak Ridge Reservation, Tennessee for environmental and geologic site characterization","interactions":[],"lastModifiedDate":"2017-11-08T13:34:28","indexId":"70094776","displayToPublicDate":"1993-01-01T14:49:00","publicationYear":"1993","noYear":false,"publicationType":{"id":4,"text":"Book"},"publicationSubtype":{"id":12,"text":"Conference publication"},"title":"Preliminary results of a helicopter electromagnetic and magnetic survey of the Oak Ridge Reservation, Tennessee for environmental and geologic site characterization","docAbstract":"The 35,252 -acre Oak Ridge Reservation (ORR), in the western portion of the\nAppalachian Valley and Ridge province in Tennessee, has been a nuclear production and\ndevelopment facility for 50 years. Contaminants in the many waste sites on the ORR\ninclude heavy radioactive isotopes as well as many organic and inorganic compounds.\nThe locations, geometry, and contents of many of these waste sites are reasonably well\nknown, while others are poorly known, and some may be unknown. To better\ncharacterize the known sites and locate and characterize additional environmentally\nhazardous sites, a two-phase aerial survey of the ORR was begun in April, 1992. Phase\nI, which began in April, 1992, consisted of aerial radiation, multispectral scanner, and\nphotographic surveys. Phase II, which began in November, 1992 and is described in this\npresentation, consisted of a helicopter electromagnetic (HEM), magnetic, and radiation\nsurvey. Targets of the survey were both man-made (drums, trench boundaries, burn pits,\nwell heads) and geologic (fractures, faults, karst features, geologic contacts).\nThe Phase II survey has three components: testing, reconnaissance, and high-resolution\ndata acquisition. To date, the testing and reconnaissance data acquisition have been\ncompleted, and part of the data have been processed. They indicate that: 1) magnetic\nand HEM data are complementary, and do not always highlight the same anomaly; 2)\nunder favorable circumstances, helicopter magnetometer systems are capable of detecting\ngroups of 4 or more 55-gallon drums at detector altitudes of 15 m or less, 3) HEM data\nprovide data which compare favorably with surface data collected over burial trenches, 4)\nwell casings seem to be related to magnetic monopole anomalies, as would be expected,\n5) Changes in EM and magnetic anomaly character are related to lithologic changes and\nmight be used to track contacts between known outcrops.","largerWorkTitle":"Proceedings of the Symposium on the Application of geophysics to engineering and environmental problems: SAGEEP '93","conferenceTitle":"Symposium on the Application of geophysics to engineering and environmental problems: SAGEEP '93","conferenceDate":"1993-04-18T00:00:00","conferenceLocation":"San Diego, CA","language":"English","publisher":"Environmental and Engineering Geophysical Society","publisherLocation":"Englewood, CO","usgsCitation":"Doll, W., Nyquist, J.E., Labson, V., and Pellerin, L., 1993, Preliminary results of a helicopter electromagnetic and magnetic survey of the Oak Ridge Reservation, Tennessee for environmental and geologic site characterization, p. 281-295.","productDescription":"p. 281-295","numberOfPages":"15","costCenters":[],"links":[{"id":282705,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Tennessee","otherGeospatial":"Oak Ridge Reservation","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -84.436334,35.876924 ], [ -84.436334,36.064688 ], [ -84.157739,36.064688 ], [ -84.157739,35.876924 ], [ -84.436334,35.876924 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6dbce4b0b29085105566","contributors":{"authors":[{"text":"Doll, W.E.","contributorId":69024,"corporation":false,"usgs":true,"family":"Doll","given":"W.E.","email":"","affiliations":[],"preferred":false,"id":490890,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nyquist, Jonathan E.","contributorId":101801,"corporation":false,"usgs":false,"family":"Nyquist","given":"Jonathan","email":"","middleInitial":"E.","affiliations":[{"id":34225,"text":"Temple University, Philadelphia, Pa.","active":true,"usgs":false}],"preferred":false,"id":490889,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Labson, V.F.","contributorId":20506,"corporation":false,"usgs":true,"family":"Labson","given":"V.F.","email":"","affiliations":[],"preferred":false,"id":490888,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pellerin, L.","contributorId":94073,"corporation":false,"usgs":true,"family":"Pellerin","given":"L.","email":"","affiliations":[],"preferred":false,"id":490891,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70039257,"text":"70039257 - 1993 - National Geodata Policy Forum: present and emerging U.S. policies governing the development, evolution, and use of the National Spatial Data Infrastructure: summary report","interactions":[],"lastModifiedDate":"2012-08-04T01:01:57","indexId":"70039257","displayToPublicDate":"1993-01-01T14:24:00","publicationYear":"1993","noYear":false,"publicationType":{"id":4,"text":"Book"},"publicationSubtype":{"id":12,"text":"Conference publication"},"seriesTitle":{"id":430,"text":"General Information Product","active":false,"publicationSubtype":{"id":12}},"title":"National Geodata Policy Forum: present and emerging U.S. policies governing the development, evolution, and use of the National Spatial Data Infrastructure: summary report","docAbstract":"The first National Geo-Data Policy Forum was held on May 10-12, 1993, in Tyson's Corner, Virginia. The objective of the National Geo-Data Policy Forum was to examine policies related to the evolution and use of the National Spatial Data Infrastructure (NSDI). A second goal was to identify issues concerning spatial data technology and its use by all citizens. Policy makers from the public and private sectors offered ideas on the myriad issues and questions related to the NSDI and learned of concerns that their organizations must address. The links that connect the NSDI to the Clinton Administration's National Information Infrastructure were identified and discussed. The forum offered participants an opportunity to define the NSDI's role in carrying out technology policy.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Federal Geographic Data Committee, U.G., 1993, National Geodata Policy Forum: present and emerging U.S. policies governing the development, evolution, and use of the National Spatial Data Infrastructure: summary report: General Information Product, vi, 26 p.; Appendices.","productDescription":"vi, 26 p.; Appendices","numberOfPages":"35","costCenters":[],"links":[{"id":261491,"rank":800,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/confpub/70039257/report.pdf"},{"id":261492,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/confpub/70039257/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a61e1e4b0c8380cd71bf2","contributors":{"authors":[{"text":"Federal Geographic Data Committee, U.S. Geological Survey","contributorId":25810,"corporation":false,"usgs":true,"family":"Federal Geographic Data Committee","given":"U.S.","email":"","middleInitial":"Geological Survey","affiliations":[],"preferred":false,"id":465877,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70263904,"text":"70263904 - 1993 - 1:100,000-scale Digital Line Graph (DLG) data, hydrography and transportation","interactions":[],"lastModifiedDate":"2025-02-27T21:19:15.582531","indexId":"70263904","displayToPublicDate":"1993-01-01T13:09:18","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"1:100,000-scale Digital Line Graph (DLG) data, hydrography and transportation","docAbstract":"

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Water-resources data for the 1992 water year for Virginia consist of records of water levels and water quality of ground-water wells. This report (Volume 2. Ground-Water-Level and Ground-Water-Quality Records) contains water levels at 356 observation wells and water quality at 2 wells. Locations of these wells are shown on figures 4, 5, 6, and 7. The data in this report represent that part of the National Water Data System collected by the U.S. Geological Survey and cooperating State and Federal agencies in Virginia.

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\"}}]}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Prugh, Byron J. Jr.","contributorId":61846,"corporation":false,"usgs":true,"family":"Prugh","given":"Byron J.","suffix":"Jr.","affiliations":[],"preferred":false,"id":783484,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Powell, Eugene D.","contributorId":80309,"corporation":false,"usgs":true,"family":"Powell","given":"Eugene","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":783485,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70100271,"text":"70100271 - 1993 - Landfill mapping using multi-disciplinary geophysical techniques at the U.S. Air Force Academy, Colorado Springs, CO","interactions":[],"lastModifiedDate":"2014-03-31T12:04:02","indexId":"70100271","displayToPublicDate":"1993-01-01T11:59:00","publicationYear":"1993","noYear":false,"publicationType":{"id":4,"text":"Book"},"publicationSubtype":{"id":12,"text":"Conference publication"},"title":"Landfill mapping using multi-disciplinary geophysical techniques at the U.S. Air Force Academy, Colorado Springs, CO","docAbstract":"This paper describes a multi-disciplinary geophysical survey conducted over a\nlandfill on the U.S. Air Force Academy grounds near Colorado Springs, Colorado.\nThe landfill is known to contain waste generated during the construction of the\nAcademy and reportedly contains buried steel drums. The purpose of the\ngeophysical surveys was to determine the subsurface distribution of buried\nmetallic objects within the landfill.\nDifferent geophysical techniques were evaluated along a test line to determine\ntheir relative effectiveness at this site. The geophysical methods included\ntotal magnetic field, vertical magnetic gradient, VLF, horizontal and vertical\ncoplanar electromagnetic, GPR and seismic refraction.\nMagnetic and coplanar electromagnetic (EM) methods were chosen to survey the\nentire landfill because they easily detected magnetic and conductive sources and\nhave better anomaly resolution than other methods evaluated, as demonstrated by\nthe test line results. In addition, these methods are rapid and cost effective\nfor surveys involving a large number of measurements.\nSurveys of the landfill identified numerous magnetic and conductive anomalies\nindicating the presence of buried metallic objects. The vertical gradient and\nEM measurements indicate that several of the large total field anomalies are\nproduced by groups of smaller objects rather than by single, large buried\nsources. Many of the smaller anomalies are associated with the position of a\nrecently dismantled railroad track and result from iron and steel parts buried\nalong the abandoned grade.\nTwo long, narrow conductive anomalies were identified by the electromagnetic\nsurveys. These conductive features have no surface expression and apparently run\nthe length of the landfill. The EM data indicates these conductors are narrow\nand relatively shallow. One conductor is relatively magnetic, the other\nconductor has no magnetic signature suggesting a different composition.\nThe geophysical surveys determined that large areas of the landfill are\nrelatively free of buried metal due to the lack of observed magnetic or\nconductive anomalies. The geophysical data also suggests the landfill may be\nlarger than originally thought. Numerous magnetic and conductive responses were\nobserved beyond the eastern edge of the present landfill in an area thought to\nbe natural terrain.","largerWorkTitle":"Proceedings of the symposium on the application of geophysics to engineering and environmental problems: SAGEEP '93","conferenceTitle":"6th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems","conferenceDate":"1993-04-18T00:00:00","conferenceLocation":"San Diego, CA","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Horton, R., Busby, J.W., Powers, M.H., and Knoshaug, R.N., 1993, Landfill mapping using multi-disciplinary geophysical techniques at the U.S. Air Force Academy, Colorado Springs, CO, p. 109-128.","productDescription":"p. 109-128","numberOfPages":"20","costCenters":[],"links":[{"id":285146,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado","city":"Colorado Springs","otherGeospatial":"U.S. Air Force Academy","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -104.898664,38.958696 ], [ -104.898664,39.023096 ], [ -104.833061,39.023096 ], [ -104.833061,38.958696 ], [ -104.898664,38.958696 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"535594a9e4b0120853e8c040","contributors":{"authors":[{"text":"Horton, Robert 0000-0001-5578-3733 rhorton@usgs.gov","orcid":"https://orcid.org/0000-0001-5578-3733","contributorId":612,"corporation":false,"usgs":true,"family":"Horton","given":"Robert","email":"rhorton@usgs.gov","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":492148,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Busby, John W.","contributorId":85088,"corporation":false,"usgs":true,"family":"Busby","given":"John","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":492150,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Powers, Michael H. 0000-0002-4480-7856 mhpowers@usgs.gov","orcid":"https://orcid.org/0000-0002-4480-7856","contributorId":851,"corporation":false,"usgs":true,"family":"Powers","given":"Michael","email":"mhpowers@usgs.gov","middleInitial":"H.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":492149,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Knoshaug, Ronald N.","contributorId":104812,"corporation":false,"usgs":true,"family":"Knoshaug","given":"Ronald","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":492151,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70135877,"text":"70135877 - 1993 - Monitoring beach changes using GPS surveying techniques","interactions":[],"lastModifiedDate":"2014-12-18T11:42:53","indexId":"70135877","displayToPublicDate":"1993-01-01T11:45:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2220,"text":"Journal of Coastal Research","active":true,"publicationSubtype":{"id":10}},"title":"Monitoring beach changes using GPS surveying techniques","docAbstract":"

A need exists for frequent and prompt updating of shoreline positions, rates of shoreline movement, and volumetric nearshore changes. To effectively monitor and predict these beach changes, accurate measurements of beach morphology incorporating both shore-parallel and shore-normal transects are required. Although it is possible to monitor beach dynamics using land-based surveying methods, it is generally not practical to collect data of sufficient density and resolution to satisfy a three-dimensional beach-change model of long segments of the coast. The challenge to coastal scientists is to devise new beach monitoring methods that address these needs and are rapid, reliable, relatively inexpensive, and maintain or improve measurement accuracy.

\n

The adaptation of Global Positioning System (GPS) surveying techniques to beach monitoring activities is a promising response to this challenge. An experiment that employed both GPS and conventional beach surveying was conducted, and a new beach monitoring method employing kinematic GPS surveys was devised. This new method involves the collection of precise shore-parallel and shore-normal GPS positions from a moving vehicle so that an accurate two-dimensional beach surface can be generated. Results show that the GPS measurements agree with conventional shore-normal surveys at the 1 cm level, and repeated GPS measurements employing the moving vehicle demonstrate a precision of better than 1 cm. In addition, the nearly continuous sampling and increased resolution provided by the GPS surveying technique reveals alongshore changes in beach morphology that are undetected by conventional shore-normal profiles. The application of GPS surveying techniques combined with the refinement of appropriate methods for data collection and analysis provides a better understanding of beach changes, sediment transport, and storm impacts.

","language":"English","publisher":"Coastal Education & Research Foundation","publisherLocation":"Ft. Lauderdale, FL","usgsCitation":"Morton, R., Leach, M.P., Paine, J.G., and Cardoza, M.A., 1993, Monitoring beach changes using GPS surveying techniques: Journal of Coastal Research, v. 9, no. 3, p. 702-720.","productDescription":"19 p.","startPage":"702","endPage":"720","numberOfPages":"19","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":296794,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":296793,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.jstor.org/stable/4298124"}],"volume":"9","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54dd2c04e4b08de9379b35e2","contributors":{"authors":[{"text":"Morton, Robert","contributorId":85108,"corporation":false,"usgs":true,"family":"Morton","given":"Robert","affiliations":[],"preferred":false,"id":536961,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leach, Mark P.","contributorId":131025,"corporation":false,"usgs":false,"family":"Leach","given":"Mark","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":536962,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Paine, Jeffrey G.","contributorId":107071,"corporation":false,"usgs":true,"family":"Paine","given":"Jeffrey","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":536963,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cardoza, Michael A.","contributorId":131027,"corporation":false,"usgs":false,"family":"Cardoza","given":"Michael","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":536964,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70135872,"text":"70135872 - 1993 - A multi-sensor oceanographic measurement system for coastal environments","interactions":[],"lastModifiedDate":"2017-09-13T14:39:55","indexId":"70135872","displayToPublicDate":"1993-01-01T11:15:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3363,"text":"Sea Technology","active":true,"publicationSubtype":{"id":10}},"title":"A multi-sensor oceanographic measurement system for coastal environments","docAbstract":"

An instrument system has been developed for long-term sediment transport studies that uses a modular design to combine off the shelf components into a complete and flexible package. A common data storage format is used in each instrument system so that the same hardware can be assembled in different ways to address specific scientific studies with minimal engineering support and modification. Three systems have been constructed and successfully deployed to date in two different coastal environments.

","language":"English","publisher":"IEEE","doi":"10.1109/OCEANS.1992.607662","usgsCitation":"Martini, M.A., and Strahle, W.J., 1993, A multi-sensor oceanographic measurement system for coastal environments: Sea Technology, v. 34, no. 9, p. 666-671, https://doi.org/10.1109/OCEANS.1992.607662.","productDescription":"6 p.","startPage":"666","endPage":"671","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":296787,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54dd2b1de4b08de9379b3251","contributors":{"authors":[{"text":"Martini, Marinna A. 0000-0002-7757-5158 mmartini@usgs.gov","orcid":"https://orcid.org/0000-0002-7757-5158","contributorId":2456,"corporation":false,"usgs":true,"family":"Martini","given":"Marinna","email":"mmartini@usgs.gov","middleInitial":"A.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":536953,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Strahle, William J.","contributorId":55962,"corporation":false,"usgs":true,"family":"Strahle","given":"William","email":"","middleInitial":"J.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":536954,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70267465,"text":"wdrNY922 - 1993 - Water resources data, New York, water year 1992. Volume 2. Long Island","interactions":[],"lastModifiedDate":"2025-05-23T14:35:29.526435","indexId":"wdrNY922","displayToPublicDate":"1993-01-01T10:35:08","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":340,"text":"Water Data Report","code":"WDR","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"NY-92-2","title":"Water resources data, New York, water year 1992. Volume 2. Long Island","docAbstract":"

Water resources data for the 1992 water year for New York consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground-water wells. This volume contains records for water discharge at 18 gaging stations; water quality at 19 gaging stations, and 26 wells; and water levels at 736 observation wells. Also included are data for 79 low-flow partial-record stations. Additional water data were collected at various sites not involved in the systematic data collection program, and are published as miscellaneous measurements and analyses. These data, together with the data in Volumes 1 and 3 represent that part of the National Water Data System operated by the U.S. Geological Survey in cooperation with State, Federal, and other agencies in New York.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wdrNY922","collaboration":"Prepared in cooperation with the State of New York and with other agencies","usgsCitation":"Spinello, A., Nakao, J., Busciolano, R., Winowitch, R., and Eagen, V.K., 1993, Water resources data, New York, water year 1992. Volume 2. 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G.","contributorId":116683,"corporation":false,"usgs":true,"family":"Spinello","given":"A. G.","affiliations":[],"preferred":false,"id":938316,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nakao, J. H.","contributorId":118132,"corporation":false,"usgs":true,"family":"Nakao","given":"J. H.","affiliations":[],"preferred":false,"id":938317,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Busciolano, R.","contributorId":24017,"corporation":false,"usgs":true,"family":"Busciolano","given":"R.","email":"","affiliations":[],"preferred":false,"id":938318,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Winowitch, R. B.","contributorId":118302,"corporation":false,"usgs":true,"family":"Winowitch","given":"R. B.","affiliations":[],"preferred":false,"id":938319,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Eagen, V. K.","contributorId":20353,"corporation":false,"usgs":true,"family":"Eagen","given":"V.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":938320,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70262885,"text":"ofr93292 - 1993 - Geologic radon potential of the United States","interactions":[{"subject":{"id":17157,"text":"ofr93292A - 1993 - Geologic radon potential of EPA Region 1; Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont","indexId":"ofr93292A","publicationYear":"1993","noYear":false,"chapter":"A","title":"Geologic radon potential of EPA Region 1; Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont"},"predicate":"IS_PART_OF","object":{"id":70262885,"text":"ofr93292 - 1993 - Geologic radon potential of the United States","indexId":"ofr93292","publicationYear":"1993","noYear":false,"title":"Geologic radon potential of the United States"},"id":1},{"subject":{"id":17158,"text":"ofr93292J - 1993 - Geologic radon potential of EPA Region 10: Alaska, Idaho, Oregon, and Washington","indexId":"ofr93292J","publicationYear":"1993","noYear":false,"chapter":"J","title":"Geologic radon potential of EPA Region 10: Alaska, Idaho, Oregon, and Washington"},"predicate":"IS_PART_OF","object":{"id":70262885,"text":"ofr93292 - 1993 - Geologic radon potential of the United States","indexId":"ofr93292","publicationYear":"1993","noYear":false,"title":"Geologic radon potential of the United States"},"id":2},{"subject":{"id":17159,"text":"ofr93292B - 1993 - Geologic radon potential of EPA Region 2; New Jersey and New York","indexId":"ofr93292B","publicationYear":"1993","noYear":false,"chapter":"B","title":"Geologic radon potential of EPA Region 2; New Jersey and New York"},"predicate":"IS_PART_OF","object":{"id":70262885,"text":"ofr93292 - 1993 - Geologic radon potential of the United States","indexId":"ofr93292","publicationYear":"1993","noYear":false,"title":"Geologic radon potential of the United States"},"id":3},{"subject":{"id":17160,"text":"ofr93292C - 1993 - Geologic radon potential of EPA Region 3: Delaware, Maryland, Pennsylvania, Virginia, and West Virginia","indexId":"ofr93292C","publicationYear":"1993","noYear":false,"chapter":"C","title":"Geologic radon potential of EPA Region 3: Delaware, Maryland, Pennsylvania, Virginia, and West Virginia"},"predicate":"IS_PART_OF","object":{"id":70262885,"text":"ofr93292 - 1993 - Geologic radon potential of the United States","indexId":"ofr93292","publicationYear":"1993","noYear":false,"title":"Geologic radon potential of the United States"},"id":4},{"subject":{"id":17161,"text":"ofr93292D - 1993 - Geologic radon potential of EPA Region 4; Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee","indexId":"ofr93292D","publicationYear":"1993","noYear":false,"chapter":"D","title":"Geologic radon potential of EPA Region 4; Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee"},"predicate":"IS_PART_OF","object":{"id":70262885,"text":"ofr93292 - 1993 - Geologic radon potential of the United States","indexId":"ofr93292","publicationYear":"1993","noYear":false,"title":"Geologic radon potential of the United States"},"id":5},{"subject":{"id":17162,"text":"ofr93292E - 1993 - Geologic radon potential of EPA Region 5; Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin","indexId":"ofr93292E","publicationYear":"1993","noYear":false,"chapter":"E","title":"Geologic radon potential of EPA Region 5; Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin"},"predicate":"IS_PART_OF","object":{"id":70262885,"text":"ofr93292 - 1993 - Geologic radon potential of the United States","indexId":"ofr93292","publicationYear":"1993","noYear":false,"title":"Geologic radon potential of the United States"},"id":6},{"subject":{"id":17163,"text":"ofr93292F - 1993 - Geologic radon potential of EPA Region 6; Arkansas, Louisiana, New Mexico, Oklahoma, and Texas","indexId":"ofr93292F","publicationYear":"1993","noYear":false,"chapter":"F","title":"Geologic radon potential of EPA Region 6; Arkansas, Louisiana, New Mexico, Oklahoma, and Texas"},"predicate":"IS_PART_OF","object":{"id":70262885,"text":"ofr93292 - 1993 - Geologic radon potential of the United States","indexId":"ofr93292","publicationYear":"1993","noYear":false,"title":"Geologic radon potential of the United States"},"id":7},{"subject":{"id":17164,"text":"ofr93292H - 1993 - Geologic radon potential of EPA Region 8: Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming","indexId":"ofr93292H","publicationYear":"1993","noYear":false,"chapter":"H","title":"Geologic radon potential of EPA Region 8: Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming"},"predicate":"IS_PART_OF","object":{"id":70262885,"text":"ofr93292 - 1993 - Geologic radon potential of the United States","indexId":"ofr93292","publicationYear":"1993","noYear":false,"title":"Geologic radon potential of the United States"},"id":8},{"subject":{"id":17165,"text":"ofr93292I - 1993 - Geologic radon potential of EPA Region 9; Arizona, California, Hawaii, and Nevada","indexId":"ofr93292I","publicationYear":"1993","noYear":false,"chapter":"I","title":"Geologic radon potential of EPA Region 9; Arizona, California, Hawaii, and Nevada"},"predicate":"IS_PART_OF","object":{"id":70262885,"text":"ofr93292 - 1993 - Geologic radon potential of the United States","indexId":"ofr93292","publicationYear":"1993","noYear":false,"title":"Geologic radon potential of the United States"},"id":9},{"subject":{"id":17166,"text":"ofr93292K - 1995 - Geologic radon potential of Guam and Puerto Rico","indexId":"ofr93292K","publicationYear":"1995","noYear":false,"chapter":"K","title":"Geologic radon potential of Guam and Puerto Rico"},"predicate":"IS_PART_OF","object":{"id":70262885,"text":"ofr93292 - 1993 - Geologic radon potential of the United States","indexId":"ofr93292","publicationYear":"1993","noYear":false,"title":"Geologic radon potential of the United States"},"id":10},{"subject":{"id":38146,"text":"ofr93292G - 1993 - Geologic radon potential of EPA Region 7: Iowa, Kansas, Missouri, and Nebraska","indexId":"ofr93292G","publicationYear":"1993","noYear":false,"chapter":"G","title":"Geologic radon potential of EPA Region 7: Iowa, Kansas, Missouri, and Nebraska"},"predicate":"IS_PART_OF","object":{"id":70262885,"text":"ofr93292 - 1993 - Geologic radon potential of the United States","indexId":"ofr93292","publicationYear":"1993","noYear":false,"title":"Geologic radon potential of the United States"},"id":11}],"lastModifiedDate":"2025-01-27T17:59:58.145926","indexId":"ofr93292","displayToPublicDate":"1993-01-01T10:27:31","publicationYear":"1993","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":"93-292","title":"Geologic radon potential of the United States","docAbstract":"

The Indoor Radon Abatement Act of 1988 (Public Law 100-551) directed the U.S. Environmental Protection Agency (EPA) to identify areas of the United States that have the potential to produce harmful levels of indoor radon, based on both geological data and on indoor radon levels in homes and other structures. As part of an Interagency Agreement between the EPA and the U.S. Geological Survey (USGS), the USGS prepared radon potential estimates for the United States. The purpose and intended use of these reports is to help identify areas where states can target their radon program resources, to provide guidance in selecting the most appropriate building code options for areas, and to provide general information on radon and geology for each state for federal, state, and municipal officials dealing with radon issues. The booklets are organized by EPA Federal boundaries (Regions) with chapters for each state. Each state chapter discusses the state's specific geographic setting, soils, geologic setting, geologic radon potential, indoor radon data, and a summary outlining the radon potential rankings of geologic areas in the state.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr93292","usgsCitation":"1993, Geologic radon potential of the United States: U.S. Geological Survey Open-File Report 93-292, https://doi.org/10.3133/ofr93292.","costCenters":[],"links":[{"id":481268,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"editors":[{"text":"Schumann, R. Randall 0000-0001-8158-6960 rschumann@usgs.gov","orcid":"https://orcid.org/0000-0001-8158-6960","contributorId":1569,"corporation":false,"usgs":true,"family":"Schumann","given":"R.","email":"rschumann@usgs.gov","middleInitial":"Randall","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":925164,"contributorType":{"id":2,"text":"Editors"},"rank":1}]}} ,{"id":70128509,"text":"70128509 - 1993 - Using Pop-II models to predict effects of wolf predation and hunter harvests on elk, mule deer, and moose on the northern range","interactions":[],"lastModifiedDate":"2014-10-09T09:23:34","indexId":"70128509","displayToPublicDate":"1993-01-01T09:16:40","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"seriesNumber":"Scientific Monograph NPS/NRYELL/NRSM-93/22","title":"Using Pop-II models to predict effects of wolf predation and hunter harvests on elk, mule deer, and moose on the northern range","docAbstract":"The effects of establishing a gray wolf (Canis lupus) population in Yellowstone National Park were predicted for three ungulate species—elk (Cervus elaphus), mule deer (Odocoileus hemionus), and moose (Alces alces)—using previously developed POP-II population models. We developed models for 78 and 100 wolves. For each wolf population, we ran scenarios using wolf predation rates of 9, 12, and 15 ungulates/wolf/year. With 78 wolves and the antlerless elk harvest reduced 27%, our modeled elk population estimated were 5-18% smaller than the model estimate without wolves. With 100 wolves and the antlerless elk harvest reduced 27%, our elk population estimated were 11-30% smaller than the population estimates without wolves. Wolf predation effects were greater on the modeled mule deer population than on elk. With 78 wolves and no antlerless deer harvest, we predicted the mule deer population could be 13-44% larger than without wolves. With 100 wolves and no antlerless deer harvest, the mule deer population was 0-36% larger than without wolves. After wolf recovery, our POP-II models suggested moose harvests would have to be reduced at least 50% to maintain moose numbers at the levels predicted when wolves were not present. Mule deer and moose population data are limited, and these wolf predation effects may be overestimated if population sizes or male-female ratios were underestimated in our population models. We recommend additional mule deer and moose population data be obtained.","largerWorkTitle":"Ecological issues on reintroducing wolves into Yellowstone National Park","language":"English","publisher":"National Park Service","publisherLocation":"Washington, D.C.","usgsCitation":"Mack, J., and Singer, F.J., 1993, Using Pop-II models to predict effects of wolf predation and hunter harvests on elk, mule deer, and moose on the northern range, 26 p.","productDescription":"26 p.","startPage":"49","endPage":"74","numberOfPages":"26","costCenters":[],"links":[{"id":295110,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Idaho, Montana, Wyoming","otherGeospatial":"Yellowstone National Park","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5437a3dfe4b08a816ca636ab","contributors":{"authors":[{"text":"Mack, John A.","contributorId":102818,"corporation":false,"usgs":true,"family":"Mack","given":"John A.","affiliations":[],"preferred":false,"id":502952,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Singer, Francis J.","contributorId":67026,"corporation":false,"usgs":true,"family":"Singer","given":"Francis","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":502951,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70135865,"text":"70135865 - 1993 - Velocity measurements and changes in position of Thwaites Glacier/iceberg tongue from aerial photography, Landsat images and NOAA AVHRR data","interactions":[],"lastModifiedDate":"2018-10-31T16:46:52","indexId":"70135865","displayToPublicDate":"1993-01-01T09:15:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":794,"text":"Annals of Glaciology","active":true,"publicationSubtype":{"id":10}},"title":"Velocity measurements and changes in position of Thwaites Glacier/iceberg tongue from aerial photography, Landsat images and NOAA AVHRR data","docAbstract":"

The Thwaites Glacier/iceberg tongue complex has been a significant feature of the Antarctic coastline for at least 50 years. In 1986, major changes began to occur in this area. Fast ice melted and several icebergs calved from the base of the iceberg tongue and the terminus of Thwaites Glacier. The iceberg tongue rotated to an east-west orientation and drifted westward. Between 1986 and 1992, a total of 140 km of drift has occurred. Remote digital velocity measurements were made on Thwaites Glacier using sequential Landsat images to try to determine if changes in velocity had occurred in conjunction with the changes in ice position. Examination of the morphology of the glacier/iceberg tongue showed no evidence of surge activity.

","language":"English","publisher":"International Glaciological Society","publisherLocation":"Cambridge University Press","doi":"10.1017/S0260305500012908","usgsCitation":"Ferrigno, J.G., Lucchitta, B.K., Mullinsallison, A.L., Allen, R.J., and Gould, W.G., 1993, Velocity measurements and changes in position of Thwaites Glacier/iceberg tongue from aerial photography, Landsat images and NOAA AVHRR data: Annals of Glaciology, v. 17, p. 239-244, https://doi.org/10.1017/S0260305500012908.","productDescription":"6 p.","startPage":"239","endPage":"244","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":479474,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1017/s0260305500012908","text":"Publisher Index Page"},{"id":296779,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"54dd2c84e4b08de9379b3853","contributors":{"authors":[{"text":"Ferrigno, Jane G. jferrign@usgs.gov","contributorId":39825,"corporation":false,"usgs":true,"family":"Ferrigno","given":"Jane","email":"jferrign@usgs.gov","middleInitial":"G.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":false,"id":536932,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lucchitta, Baerbel K. blucchitta@usgs.gov","contributorId":3649,"corporation":false,"usgs":true,"family":"Lucchitta","given":"Baerbel","email":"blucchitta@usgs.gov","middleInitial":"K.","affiliations":[],"preferred":true,"id":536933,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mullinsallison, A. L.","contributorId":131012,"corporation":false,"usgs":false,"family":"Mullinsallison","given":"A.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":536934,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Allen, Robert J.","contributorId":15644,"corporation":false,"usgs":true,"family":"Allen","given":"Robert","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":536935,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gould, W. G.","contributorId":131013,"corporation":false,"usgs":false,"family":"Gould","given":"W.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":536936,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70017349,"text":"70017349 - 1993 - Aspects of numerical and representational methods related to the finite-difference simulation of advective and dispersive transport of freshwater in a thin brackish aquifer","interactions":[],"lastModifiedDate":"2025-03-06T16:36:34.484578","indexId":"70017349","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Aspects of numerical and representational methods related to the finite-difference simulation of advective and dispersive transport of freshwater in a thin brackish aquifer","docAbstract":"

The simulation of the transport of injected freshwater in a thin brackish aquifer, overlain and underlain by confining layers containing more saline water, is shown to be influenced by the choice of the finite-difference approximation method, the algorithm for representing vertical advective and dispersive fluxes, and the values assigned to parametric coefficients that specify the degree of vertical dispersion and molecular diffusion that occurs. Computed potable water recovery efficiencies will differ depending upon the choice of algorithm and approximation method, as will dispersion coefficients estimated based on the calibration of simulations to match measured data. A comparison of centered and backward finite-difference approximation methods shows that substantially different transition zones between injected and native waters are depicted by the different methods, and computed recovery efficiencies vary greatly. Standard and experimental algorithms and a variety of values for molecular diffusivity, transverse dispersivity, and vertical scaling factor were compared in simulations of freshwater storage in a thin brackish aquifer. Computed recovery efficiencies vary considerably, and appreciable differences are observed in the distribution of injected freshwater in the various cases tested. The results demonstrate both a qualitatively different description of transport using the experimental algorithms and the interrelated influences of molecular diffusion and transverse dispersion on simulated recovery efficiency. When simulating natural aquifer flow in cross-section, flushing of the aquifer occurred for all tested coefficient choices using both standard and experimental algorithms.

","language":"English","publisher":"Elsevier","doi":"10.1016/0022-1694(93)90253-6","issn":"00221694","usgsCitation":"Merritt, M.L., 1993, Aspects of numerical and representational methods related to the finite-difference simulation of advective and dispersive transport of freshwater in a thin brackish aquifer: Journal of Hydrology, v. 148, no. 1-4, p. 61-92, https://doi.org/10.1016/0022-1694(93)90253-6.","productDescription":"32 p.","startPage":"61","endPage":"92","numberOfPages":"32","costCenters":[],"links":[{"id":225065,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"148","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059edbce4b0c8380cd49995","contributors":{"authors":[{"text":"Merritt, M. L.","contributorId":47401,"corporation":false,"usgs":true,"family":"Merritt","given":"M.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":376208,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":1008012,"text":"1008012 - 1993 - Disappearance of the cascades frog Rana cascadae at the southern end of its range, California, USA","interactions":[],"lastModifiedDate":"2023-09-14T16:11:38.828403","indexId":"1008012","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1015,"text":"Biological Conservation","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Disappearance of the cascades frog Rana cascadae at the southern end of its range, California, USA","title":"Disappearance of the cascades frog Rana cascadae at the southern end of its range, California, USA","docAbstract":"

It has recently become evident that amphibian species in many areas of the world have suffered serious declines. Healthy, seemingly well-protected populations have disappeared for no obvious reason. Data from historic accounts and museum records indicate that the Cascades frog, Rana cascadae, was once abundant at the southern end of its range in the vicinity of Lassen Volcanic National Park, California, USA. We conducted intensive searches at all 16 sites where R. cascadae had previously been recorded in the Lassen area, plus 34 additional sites with suitable habitat. Whereas earlier biologists could sometimes find 40 or more frogs at some of these sites, we were only able to locate two frogs at a single locality. This represents a precipitous decline over a period of <15 years. The decline seems to have been caused by a combination of local factors, including (1) the presence of non-native, predatory fish which have restricted habitat and limited dispersal of frogs; (2) loss of breeding habitat due to a five-year drought; and (3) the gradual loss of open meadows and associated aquatic habitats. The loss of frogs suggests that some common management practices in parks and wilderness areas may be endangering some of the species these areas are intended to protect. Similar local factors may account for amphibian declines reported elsewhere and should be carefully evaluated along with possible global effects.

","language":"English","publisher":"Elsevier","doi":"10.1016/0006-3207(93)90447-9","usgsCitation":"Fellers, G.M., and Drost, C.A., 1993, Disappearance of the cascades frog Rana cascadae at the southern end of its range, California, USA: Biological Conservation, v. 65, no. 1993, p. 177-181, https://doi.org/10.1016/0006-3207(93)90447-9.","productDescription":"5 p.","startPage":"177","endPage":"181","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":130927,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Lassen National Forest, Lassen Volcanic National Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -121.76728073572755,\n 40.643474261394914\n ],\n [\n -121.76728073572755,\n 40.295716978522194\n ],\n [\n -121.17989880070715,\n 40.295716978522194\n ],\n [\n -121.17989880070715,\n 40.643474261394914\n ],\n [\n -121.76728073572755,\n 40.643474261394914\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"65","issue":"1993","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a82e4b07f02db64ab1c","contributors":{"authors":[{"text":"Fellers, Gary M. 0000-0003-4092-0285 gary_fellers@usgs.gov","orcid":"https://orcid.org/0000-0003-4092-0285","contributorId":3150,"corporation":false,"usgs":true,"family":"Fellers","given":"Gary","email":"gary_fellers@usgs.gov","middleInitial":"M.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":316540,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Drost, Charles A. 0000-0002-4792-7095 charles_drost@usgs.gov","orcid":"https://orcid.org/0000-0002-4792-7095","contributorId":3151,"corporation":false,"usgs":true,"family":"Drost","given":"Charles","email":"charles_drost@usgs.gov","middleInitial":"A.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":316541,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70018294,"text":"70018294 - 1993 - Empirical prediction of strong ground motion","interactions":[],"lastModifiedDate":"2012-03-12T17:19:23","indexId":"70018294","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Empirical prediction of strong ground motion","docAbstract":"In 1982, we published equations for the prediction of various measures of ground motion as a function of earthquake magnitude, distance from the earthquake rupture, and site geology. Many more strong-motion recordings have been obtained since we published our equations. The predictions of the ground motions from our published equations are in reasonable agreement with the peak accelerations from the new data. The increased number of data, however, allow us to refine our predictions for some regions of magnitude and distance space, and perhaps for other variables.","largerWorkTitle":"Structural Engineering in Natural Hazards Mitigation","conferenceTitle":"Proceedings of the Symposium on Structural Engineering in Natural Hazards Mitigation","conferenceDate":"19 April 1993 through 21 April 1993","conferenceLocation":"Irvine, CA, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872629104","usgsCitation":"Boore, D.M., and Joyner, W.B., 1993, Empirical prediction of strong ground motion, in Structural Engineering in Natural Hazards Mitigation, Irvine, CA, USA, 19 April 1993 through 21 April 1993, p. 241-246.","startPage":"241","endPage":"246","numberOfPages":"6","costCenters":[],"links":[{"id":227287,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a090ee4b0c8380cd51da5","contributors":{"authors":[{"text":"Boore, David M. boore@usgs.gov","contributorId":2509,"corporation":false,"usgs":true,"family":"Boore","given":"David","email":"boore@usgs.gov","middleInitial":"M.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":false,"id":379137,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Joyner, William B.","contributorId":39786,"corporation":false,"usgs":true,"family":"Joyner","given":"William","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":379138,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}