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Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1157","title":"Water quality in the Albemarle-Pamlico drainage basin, North Carolina and Virginia, 1992-95","docAbstract":"The NAWQA Program is assessing the water-quality conditions of more than 50 of the Nation's largest river basins and aquifers, known as Study Units. Collectively, these Study Units cover about one-half of the United States and include sources of drinking water used by about 70 percent of the U.S. population. Comprehensive assessments of about one-third of the Study Units are ongoing at a given time. Each Study Unit is scheduled to be revisited every decade to evaluate changes in water-quality conditions. NAWQA assessments rely heavily on existing information collected by the USGS and many other agencies as well as the use of nationally consistent study designs and methods of sampling and analysis. Such consistency simultaneously provides information about the status and trends in water-quality conditions in a particular stream or aquifer and, more importantly, provides the basis to make comparisons among watersheds and improve our understanding of the factors that affect water-quality conditions regionally and nationally.\r\n\r\nThis report is intended to summarize major findings that emerged between 1992 and 1995 from the water-quality assessment of the Albemarle-Pamlico Drainage Study Unit and to relate these findings to water-quality issues of regional and national concern. The information is primarily intended for those who are involved in water-resource management. Indeed, this report addresses many of the concerns raised by regulators, water-utility managers, industry representatives, and other scientists, engineers, public officials, and members of stakeholder groups who provided advice and input to the USGS during this NAWQA Study-Unit investigation. Yet, the information contained here may also interest those who simply wish to know more about the quality of water in the rivers and aquifers in the area where they live.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/cir1157","usgsCitation":"Spruill, T.B., Harned, D.A., Ruhl, P.M., Eimers, J., McMahon, G., Smith, K.E., Galeone, D.R., and Woodside, M., 1998, Water quality in the Albemarle-Pamlico drainage basin, North Carolina and Virginia, 1992-95: U.S. Geological Survey Circular 1157, 36 p., https://doi.org/10.3133/cir1157.","productDescription":"36 p.","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":124609,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/cir_1157.jpg"},{"id":407288,"rank":2,"type":{"id":36,"text":"NGMDB Index 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E.","contributorId":50776,"corporation":false,"usgs":true,"family":"Smith","given":"Kelly","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":149160,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Galeone, David R.","contributorId":79876,"corporation":false,"usgs":true,"family":"Galeone","given":"David","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":149163,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Woodside, Michael D. mdwoodsi@usgs.gov","contributorId":2903,"corporation":false,"usgs":true,"family":"Woodside","given":"Michael D.","email":"mdwoodsi@usgs.gov","affiliations":[{"id":503,"text":"Office of Water Quality","active":true,"usgs":true}],"preferred":true,"id":149158,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":32258,"text":"ofr98623 - 1998 - Digital geologic map of the Thirsty Canyon NW quadrangle, Nye County, Nevada","interactions":[],"lastModifiedDate":"2017-03-09T12:31:00","indexId":"ofr98623","displayToPublicDate":"2000-03-01T00:00:00","publicationYear":"1998","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":"98-623","title":"Digital geologic map of the Thirsty Canyon NW quadrangle, Nye County, Nevada","docAbstract":"This digital geologic map compilation presents new polygon (i.e., geologic map unit contacts), line (i.e., fault, fold axis, dike, and caldera wall), and point (i.e., structural attitude) vector data for the Thirsty Canyon NW 7 1/2' quadrangle in southern Nevada. The map database, which is at 1:24,000-scale resolution, provides geologic coverage of an area of current hydrogeologic and tectonic interest. The Thirsty Canyon NW quadrangle is located in southern Nye County about 20 km west of the Nevada Test Site (NTS) and 30 km north of the town of Beatty. The map area is underlain by extensive layers of Neogene (about 14 to 4.5 million years old [Ma]) mafic and silicic volcanic rocks that are temporally and spatially associated with transtensional tectonic deformation. Mapped volcanic features include part of a late Miocene (about 9.2 Ma) collapse caldera, a Pliocene (about 4.5 Ma) shield volcano, and two Pleistocene (about 0.3 Ma) cinder cones. Also documented are numerous normal, oblique-slip, and strike-slip faults that reflect regional transtensional deformation along the southern part of the Walker Lane belt. The Thirsty Canyon NW map provides new geologic information for modeling groundwater flow paths that may enter the map area from underground nuclear testing areas located in the NTS about 25 km to the east. The geologic map database comprises six component ArcINFO map coverages that can be accessed after decompressing and unbundling the data archive file (tcnw.tar.gz). These six coverages (tcnwpoly, tcnwflt, tcnwfold, tcnwdike, tcnwcald, and tcnwatt) are formatted here in ArcINFO EXPORT format. Bundled with this database are two PDF files for readily viewing and printing the map, accessory graphics, and a description of map units and compilation methods.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr98623","usgsCitation":"Minor, S., Orkild, P., Sargent, K.A., Warren, R., Sawyer, D., and Workman, J., 1998, Digital geologic map of the Thirsty Canyon NW quadrangle, Nye County, Nevada: U.S. Geological Survey Open-File Report 98-623, 22 p., https://doi.org/10.3133/ofr98623.","productDescription":"22 p.","costCenters":[],"links":[{"id":163911,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0623/report-thumb.jpg"},{"id":3220,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1998/ofr-98-0623/","linkFileType":{"id":5,"text":"html"}},{"id":109049,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_19424.htm","linkFileType":{"id":5,"text":"html"},"description":"19424"},{"id":60324,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0623/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Nevada","county":"Nye","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a96e4b07f02db65ac1d","contributors":{"authors":[{"text":"Minor, S.A.","contributorId":65047,"corporation":false,"usgs":true,"family":"Minor","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":208091,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Orkild, P. P.","contributorId":46494,"corporation":false,"usgs":true,"family":"Orkild","given":"P. P.","affiliations":[],"preferred":false,"id":208089,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sargent, K. A.","contributorId":58630,"corporation":false,"usgs":true,"family":"Sargent","given":"K.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":208090,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Warren, R.G.","contributorId":6037,"corporation":false,"usgs":true,"family":"Warren","given":"R.G.","email":"","affiliations":[],"preferred":false,"id":208087,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sawyer, D.A.","contributorId":107666,"corporation":false,"usgs":true,"family":"Sawyer","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":208092,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Workman, J.B.","contributorId":15254,"corporation":false,"usgs":true,"family":"Workman","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":208088,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":32256,"text":"ofr98245 - 1998 - Geologic map of the Atlanta 30' x 60' quadrangle, Georgia","interactions":[],"lastModifiedDate":"2025-07-28T16:14:49.682106","indexId":"ofr98245","displayToPublicDate":"2000-03-01T00:00:00","publicationYear":"1998","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":"98-245","title":"Geologic map of the Atlanta 30' x 60' quadrangle, Georgia","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr98245","usgsCitation":"Higgins, M.W., Crawford, T.J., Atkins, R.L., and Crawford, R.F., 1998, Geologic map of the Atlanta 30' x 60' quadrangle, Georgia: U.S. Geological Survey Open-File Report 98-245, Report: 20 p.; 4 Plates: 38.69 × 27.00 inches or smaller, https://doi.org/10.3133/ofr98245.","productDescription":"Report: 20 p.; 4 Plates: 38.69 × 27.00 inches or smaller","costCenters":[],"links":[{"id":493020,"rank":7,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0245/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":60320,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1998/0245/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":60321,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1998/0245/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":60322,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1998/0245/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":60323,"rank":6,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1998/0245/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":390222,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_39564.htm"},{"id":163909,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0245/report-thumb.jpg"}],"scale":"100000","country":"United States","state":"Georgia","otherGeospatial":"Atlanta 30' x 60' quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -85,\n 33.5\n ],\n [\n -84,\n 33.5\n ],\n [\n -84,\n 34\n ],\n [\n -85,\n 34\n ],\n [\n -85,\n 33.5\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b0fe4b07f02db6a07eb","contributors":{"authors":[{"text":"Higgins, M. W.","contributorId":76754,"corporation":false,"usgs":true,"family":"Higgins","given":"M.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":208079,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Crawford, T. J.","contributorId":73606,"corporation":false,"usgs":true,"family":"Crawford","given":"T.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":208078,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Atkins, R. L.","contributorId":77540,"corporation":false,"usgs":true,"family":"Atkins","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":208080,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Crawford, R. F.","contributorId":24827,"corporation":false,"usgs":true,"family":"Crawford","given":"R.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":208077,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":29474,"text":"wri984203 - 1998 - Probability of detecting atrazine/desethyl-atrazine and elevated concentrations of nitrate (NO2+NO3-N) in ground water in the Idaho part of the upper Snake River basin","interactions":[],"lastModifiedDate":"2022-12-05T21:00:46.613066","indexId":"wri984203","displayToPublicDate":"2000-03-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"98-4203","displayTitle":"Probability of detecting atrazine/desethyl-atrazine and elevated concentrations of nitrate (NO2+NO3-N) in ground water in the Idaho part of the upper Snake River basin","title":"Probability of detecting atrazine/desethyl-atrazine and elevated concentrations of nitrate (NO2+NO3-N) in ground water in the Idaho part of the upper Snake River basin","docAbstract":"Draft Federal regulations may require that each State develop a State Pesticide Management Plan for the herbicides atrazine, alachlor, cyanazine, metolachlor, and simazine. This study developed maps that the Idaho State Department of Agriculture might use to predict the probability of detecting atrazine and desethyl-atrazine (a breakdown product of atrazine) in ground water in the Idaho part of the upper Snake River Basin. These maps can be incorporated in the State Pesticide Management Plan and help provide a sound hydrogeologic basis for atrazine management in the study area. Maps showing the probability of detecting atrazine/desethyl-atrazine in ground water were developed as follows: (1) Ground-water monitoring data were overlaid with hydrogeologic and anthropogenic data using a geographic information system to produce a data set in which each well had corresponding data on atrazine use, depth to ground water, geology, land use, precipitation, soils, and well depth. These data then were downloaded to a statistical software package for analysis by logistic regression. (2) Individual (univariate) relations between atrazine/desethyl-atrazine in ground water and atrazine use, depth to ground water, geology, land use, precipitation, soils, and well depth data were evaluated to identify those independent variables significantly related to atrazine/ desethyl-atrazine detections. (3) Several preliminary multivariate models with various combinations of independent variables were constructed. (4) The multivariate models which best predicted the presence of atrazine/desethyl-atrazine in ground water were selected. (5) The multivariate models were entered into the geographic information system and the probability maps were constructed. Two models which best predicted the presence of atrazine/desethyl-atrazine in ground water were selected; one with and one without atrazine use. Correlations of the predicted probabilities of atrazine/desethyl-atrazine in ground water with the percent of actual detections were good; r-squared values were 0.91 and 0.96, respectively. Models were verified using a second set of groundwater quality data. Verification showed that wells with water containing atrazine/desethyl-atrazine had significantly higher probability ratings than wells with water containing no atrazine/desethylatrazine (p <0.002). Logistic regression also was used to develop a preliminary model to predict the probability of nitrite plus nitrate as nitrogen concentrations greater than background levels of 2 milligrams per liter. A direct comparison between the atrazine/ desethyl-atrazine and nitrite plus nitrate as nitrogen probability maps was possible because the same ground-water monitoring, hydrogeologic, and anthropogenic data were used to develop both maps. Land use, precipitation, soil hydrologic group, and well depth were significantly related with atrazine/desethyl-atrazine detections. Depth to water, land use, and soil drainage were signifi- cantly related with elevated nitrite plus nitrate as nitrogen concentrations. The differences between atrazine/desethyl-atrazine and nitrite plus nitrate as nitrogen relations were attributed to differences in chemical behavior of these compounds in the environment and possibly to differences in the extent of use and rates of their application.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri984203","collaboration":"In cooperation with the Idaho State Department of Agriculture","usgsCitation":"Rupert, M.G., 1998, Probability of detecting atrazine/desethyl-atrazine and elevated concentrations of nitrate (NO2+NO3-N) in ground water in the Idaho part of the upper Snake River basin: U.S. Geological Survey Water-Resources Investigations Report 98-4203, Report: v, 32 p.; 1 Plate: 30.00 x 25.00 inches, https://doi.org/10.3133/wri984203.","productDescription":"Report: v, 32 p.; 1 Plate: 30.00 x 25.00 inches","numberOfPages":"38","costCenters":[{"id":343,"text":"Idaho Water Science Center","active":true,"usgs":true}],"links":[{"id":410063,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_49288.htm","linkFileType":{"id":5,"text":"html"}},{"id":262341,"rank":900,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1998/4203/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":262342,"rank":800,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1998/4203/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":262343,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1998/4203/report-thumb.jpg"}],"country":"United States","state":"Idaho","otherGeospatial":"Snake River Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -115.3333,\n 42\n ],\n [\n -115.3333,\n 44.6917\n ],\n [\n -111.0483,\n 44.6917\n ],\n [\n -111.0483,\n 42\n ],\n [\n -115.3333,\n 42\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a8fe4b07f02db6556b8","contributors":{"authors":[{"text":"Rupert, Michael G. mgrupert@usgs.gov","contributorId":1194,"corporation":false,"usgs":true,"family":"Rupert","given":"Michael","email":"mgrupert@usgs.gov","middleInitial":"G.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":201578,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":24664,"text":"ofr98513A - 1998 - Estimates of ultimate recovery of oil from California's giant fields (> 100 million barrels), 1923-1995","interactions":[],"lastModifiedDate":"2012-02-02T00:08:21","indexId":"ofr98513A","displayToPublicDate":"2000-03-01T00:00:00","publicationYear":"1998","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":"98-513","chapter":"A","title":"Estimates of ultimate recovery of oil from California's giant fields (> 100 million barrels), 1923-1995","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey,","doi":"10.3133/ofr98513A","issn":"0094-9140","usgsCitation":"Tennyson, M., 1998, Estimates of ultimate recovery of oil from California's giant fields (> 100 million barrels), 1923-1995: U.S. Geological Survey Open-File Report 98-513, 165 leaves :ill. ;28 cm., https://doi.org/10.3133/ofr98513A.","productDescription":"165 leaves :ill. ;28 cm.","costCenters":[],"links":[{"id":157721,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0513a/report-thumb.jpg"},{"id":53693,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0513a/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ce4b07f02db5fca84","contributors":{"authors":[{"text":"Tennyson, Marilyn E. 0000-0002-5166-2421 tennyson@usgs.gov","orcid":"https://orcid.org/0000-0002-5166-2421","contributorId":23564,"corporation":false,"usgs":true,"family":"Tennyson","given":"Marilyn E.","email":"tennyson@usgs.gov","affiliations":[],"preferred":false,"id":192345,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":32257,"text":"ofr98371 - 1998 - The Quaternary geologic map of Connecticut and Long Island Sound basin","interactions":[],"lastModifiedDate":"2012-02-02T00:09:17","indexId":"ofr98371","displayToPublicDate":"2000-03-01T00:00:00","publicationYear":"1998","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":"98-371","title":"The Quaternary geologic map of Connecticut and Long Island Sound basin","language":"ENGLISH","doi":"10.3133/ofr98371","usgsCitation":"Stone, J.R., Schafer, J., London, E., Lewis, R.S., DiGiacomo-Cohen, M.L., and Thompson, W., 1998, The Quaternary geologic map of Connecticut and Long Island Sound basin: U.S. Geological Survey Open-File Report 98-371, 86 p., 8 oversized sheets, 1 map at scale 1:175,000, https://doi.org/10.3133/ofr98371.","productDescription":"86 p., 8 oversized sheets, 1 map at scale 1:175,000","costCenters":[],"links":[{"id":109837,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22504.htm","linkFileType":{"id":5,"text":"html"},"description":"22504"},{"id":163910,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"75000","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f5e4b07f02db5f0c49","contributors":{"authors":[{"text":"Stone, J. R.","contributorId":87964,"corporation":false,"usgs":true,"family":"Stone","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":208084,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schafer, J.P.","contributorId":94713,"corporation":false,"usgs":true,"family":"Schafer","given":"J.P.","affiliations":[],"preferred":false,"id":208085,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"London, E.H.","contributorId":77201,"corporation":false,"usgs":true,"family":"London","given":"E.H.","email":"","affiliations":[],"preferred":false,"id":208083,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lewis, R. S.","contributorId":19951,"corporation":false,"usgs":true,"family":"Lewis","given":"R.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":208082,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"DiGiacomo-Cohen, Mary L. 0000-0003-2384-8912 mdicohen@usgs.gov","orcid":"https://orcid.org/0000-0003-2384-8912","contributorId":2527,"corporation":false,"usgs":true,"family":"DiGiacomo-Cohen","given":"Mary","email":"mdicohen@usgs.gov","middleInitial":"L.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":208081,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Thompson, W.B.","contributorId":98326,"corporation":false,"usgs":true,"family":"Thompson","given":"W.B.","email":"","affiliations":[],"preferred":false,"id":208086,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":24388,"text":"ofr98752 - 1998 - Paleomagnetism of Pleistocene sediments from drill hole OL-92, Owens Lake, California; reevaluation of magnetic excursions using anisotropy of magnetic susceptibility","interactions":[],"lastModifiedDate":"2012-02-02T00:08:18","indexId":"ofr98752","displayToPublicDate":"2000-03-01T00:00:00","publicationYear":"1998","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":"98-752","title":"Paleomagnetism of Pleistocene sediments from drill hole OL-92, Owens Lake, California; reevaluation of magnetic excursions using anisotropy of magnetic susceptibility","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey,","doi":"10.3133/ofr98752","issn":"0094-9140","usgsCitation":"Rosenbaum, J.G., Reynolds, R.L., and Meyer, R., 1998, Paleomagnetism of Pleistocene sediments from drill hole OL-92, Owens Lake, California; reevaluation of magnetic excursions using anisotropy of magnetic susceptibility: U.S. Geological Survey Open-File Report 98-752, 20 p. :ill. ;28 cm., https://doi.org/10.3133/ofr98752.","productDescription":"20 p. :ill. ;28 cm.","costCenters":[],"links":[{"id":157444,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0752/report-thumb.jpg"},{"id":53484,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0752/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db689c12","contributors":{"authors":[{"text":"Rosenbaum, J. G.","contributorId":96685,"corporation":false,"usgs":true,"family":"Rosenbaum","given":"J.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":191831,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reynolds, R. L. 0000-0002-4572-2942","orcid":"https://orcid.org/0000-0002-4572-2942","contributorId":79885,"corporation":false,"usgs":true,"family":"Reynolds","given":"R.","middleInitial":"L.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":191830,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meyer, Robert","contributorId":74784,"corporation":false,"usgs":true,"family":"Meyer","given":"Robert","affiliations":[],"preferred":false,"id":191829,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":5511,"text":"fs02798 - 1998 - National Water Information System (NWIS)","interactions":[],"lastModifiedDate":"2012-02-02T00:05:40","indexId":"fs02798","displayToPublicDate":"2000-03-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"027-98","title":"National Water Information System (NWIS)","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/fs02798","usgsCitation":"Water Resources Division, U.S. Geological Survey, 1998, National Water Information System (NWIS): U.S. Geological Survey Fact Sheet 027-98, 1 sheet ([2] p.) : ill. (some col.) ; 28 cm. ill. (some col.) ;, https://doi.org/10.3133/fs02798.","productDescription":"1 sheet ([2] p.) : ill. (some col.) ; 28 cm. ill. (some col.) ;","costCenters":[],"links":[{"id":109,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/FS/FS-027-98","linkFileType":{"id":5,"text":"html"}},{"id":126500,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/fs_027_98.bmp"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b01e4b07f02db698752","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":528628,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":21959,"text":"ofr98177 - 1998 - Mississippi Basin Carbon Project science plan","interactions":[],"lastModifiedDate":"2017-03-29T13:53:41","indexId":"ofr98177","displayToPublicDate":"2000-03-01T00:00:00","publicationYear":"1998","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":"98-177","title":"Mississippi Basin Carbon Project science plan","docAbstract":"Understanding the carbon cycle is one of the most difficult challenges facing scientists who study the global environment. Lack of understanding of global carbon cycling is perhaps best illustrated by our inability to balance the present-day global CO2 budget. The amount of CO2 produced by burning fossil fuels and by deforestation appears to exceed the amount accumulating in the atmosphere and oceans. The carbon needed to balance the CO2 budget (the so-called \"missing\" carbon) is probably absorbed by land plants and ultimately deposited in soils and sediments. Increasing evidence points toward the importance of these terrestrial processes in northern temperate latitudes. Thus, efforts to balance the global CO2 budget focus particular attention on terrestrial carbon uptake in our own North American \"backyard.\"
The USGS Mississippi Basin Carbon Project conducts research on the carbon budget in soils and sediments of the Mississippi River basin. The project focuses on the effects of land-use change on carbon storage and transport, nutrient cycles, and erosion and sedimentation throughout the Mississippi River Basin. Particular emphasis is placed on understanding the interactions among changes in erosion, sedimentation, and soil dynamics. The project includes spatial analysis of a wide variety of geographic data sets, estimation of whole-basin and sub-basin carbon and sediment budgets, development and implementation of terrestrial carbon-cycle models, and site-specific field studies of relevant processes. The USGS views this project as a \"flagship\" effort to demonstrate its capabilities to address the importance of the land surface to biogeochemical problems such as the global carbon budget.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr98177","issn":"0094-9140","usgsCitation":"Sundquist, E., Stallard, R., Bliss, N., Markewich, H.W., Harden, J., Pavich, M., and Dean, M., 1998, Mississippi Basin Carbon Project science plan (Version 1.0): U.S. Geological Survey Open-File Report 98-177, 44 p., https://doi.org/10.3133/ofr98177.","productDescription":"44 p.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":155359,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1297,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1998/of98-177/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699b8f","contributors":{"authors":[{"text":"Sundquist, E.T.","contributorId":13990,"corporation":false,"usgs":true,"family":"Sundquist","given":"E.T.","email":"","affiliations":[],"preferred":false,"id":186441,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stallard, R.F.","contributorId":30247,"corporation":false,"usgs":true,"family":"Stallard","given":"R.F.","email":"","affiliations":[],"preferred":false,"id":186442,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bliss, N.B. 0000-0003-2409-5211","orcid":"https://orcid.org/0000-0003-2409-5211","contributorId":104094,"corporation":false,"usgs":true,"family":"Bliss","given":"N.B.","affiliations":[],"preferred":false,"id":186447,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Markewich, H. W.","contributorId":31426,"corporation":false,"usgs":true,"family":"Markewich","given":"H.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":186443,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Harden, J.W. 0000-0002-6570-8259","orcid":"https://orcid.org/0000-0002-6570-8259","contributorId":38585,"corporation":false,"usgs":true,"family":"Harden","given":"J.W.","affiliations":[],"preferred":false,"id":186444,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Pavich, M.J.","contributorId":70788,"corporation":false,"usgs":true,"family":"Pavich","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":186445,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Dean, M.D. Jr.","contributorId":88390,"corporation":false,"usgs":true,"family":"Dean","given":"M.D.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":186446,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":21949,"text":"ofr98236 - 1998 - A microearthquake survey of the Mammoth Mountain area, Long Valley Caldera, California, summer 1997","interactions":[],"lastModifiedDate":"2024-12-20T23:00:41.272812","indexId":"ofr98236","displayToPublicDate":"2000-03-01T00:00:00","publicationYear":"1998","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":"98-236","title":"A microearthquake survey of the Mammoth Mountain area, Long Valley Caldera, California, summer 1997","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr98236","issn":"0094-9140","usgsCitation":"Foulger, G., Julian, B., Hill, D., Sharer, G., Foulger, L., Perlroth, R., Dotson, N., Pitt, A., and Brodsky, E., 1998, A microearthquake survey of the Mammoth Mountain area, Long Valley Caldera, California, summer 1997: U.S. Geological Survey Open-File Report 98-236, 63 p., https://doi.org/10.3133/ofr98236.","productDescription":"63 p.","costCenters":[],"links":[{"id":155237,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0236/report-thumb.jpg"},{"id":51424,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0236/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"California","otherGeospatial":"Long Valley caldera, Mammoth Mountain area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -119.1,\n 37.75\n ],\n [\n -119.1,\n 37.5\n ],\n [\n -118.75,\n 37.5\n ],\n [\n -118.75,\n 37.75\n ],\n [\n -119.1,\n 37.75\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6ae012","contributors":{"authors":[{"text":"Foulger, G.R.","contributorId":14439,"corporation":false,"usgs":false,"family":"Foulger","given":"G.R.","email":"","affiliations":[],"preferred":false,"id":186383,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Julian, B.R.","contributorId":101272,"corporation":false,"usgs":true,"family":"Julian","given":"B.R.","email":"","affiliations":[],"preferred":false,"id":186390,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hill, D.P.","contributorId":27432,"corporation":false,"usgs":true,"family":"Hill","given":"D.P.","email":"","affiliations":[],"preferred":false,"id":186384,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sharer, G.","contributorId":64509,"corporation":false,"usgs":true,"family":"Sharer","given":"G.","email":"","affiliations":[],"preferred":false,"id":186389,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Foulger, L.E.","contributorId":36802,"corporation":false,"usgs":true,"family":"Foulger","given":"L.E.","email":"","affiliations":[],"preferred":false,"id":186386,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Perlroth, R.","contributorId":101514,"corporation":false,"usgs":true,"family":"Perlroth","given":"R.","email":"","affiliations":[],"preferred":false,"id":186391,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Dotson, N.","contributorId":41282,"corporation":false,"usgs":true,"family":"Dotson","given":"N.","email":"","affiliations":[],"preferred":false,"id":186387,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Pitt, A.D.","contributorId":41440,"corporation":false,"usgs":true,"family":"Pitt","given":"A.D.","affiliations":[],"preferred":false,"id":186388,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Brodsky, E.","contributorId":28859,"corporation":false,"usgs":true,"family":"Brodsky","given":"E.","affiliations":[],"preferred":false,"id":186385,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":28651,"text":"wri984085 - 1998 - Design, revisions, and considerations for continued use of a ground-water-flow model of the coastal plain aquifer system in Virginia","interactions":[],"lastModifiedDate":"2012-02-02T00:08:39","indexId":"wri984085","displayToPublicDate":"2000-02-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"98-4085","title":"Design, revisions, and considerations for continued use of a ground-water-flow model of the coastal plain aquifer system in Virginia","docAbstract":"A digital numerical model of the ground-water-flow system in the Virginia Coastal Plain was constructed as part of the Regional Aquifer System Analysis program of the U.S. Geological Survey and subsequently revised based on reinterpretations of the hydrogeologic framework. The revised model has been incorporated by the Virginia Department of Environmental Quality as a means to evaluate the effects of existing and proposed ground-water withdrawals. The revised model, which is documented here, includes many design features of the original model. Principal modifications are (1) reassignment of some model layers to represent different aquifers, (2) replacement of applied recharge and the uppermost surface-water layer by constant-head cells to represent the unconfined aquifer, and (3) revision of the lateral extents and transmissivity and vertical leakance values assigned to model layers. Ground-water levels simulated by the revised model under steady-state conditions, using withdrawal rates representing the period 1978-80, generally are similar to the water levels simulated by the original model under transient conditions using the same withdrawal rates. Differences probably result largely from changes in transmissivity and vertical leakance values. The revised model enables the continued evaluation of development of the large and complex aquifer system. Improved information on parts of some aquifers has been incorporated. Only large, regional-scale trends in ground-water water levels, flow directions, and flow rates are simulated, however, and not local trends and (or) short-term changes in water level and flow. Changing hydraulic stresses, knowledge of hydrogeologic conditions, and resource-management needs require periodic revision of the model to maintain its usefulness for the management of ground-water resources in the Virginia Coastal Plain.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/wri984085","usgsCitation":"McFarland, E.R., 1998, Design, revisions, and considerations for continued use of a ground-water-flow model of the coastal plain aquifer system in Virginia: U.S. Geological Survey Water-Resources Investigations Report 98-4085, iv, 49 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri984085.","productDescription":"iv, 49 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":2253,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri984085","linkFileType":{"id":5,"text":"html"}},{"id":158842,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa8e4b07f02db667d56","contributors":{"authors":[{"text":"McFarland, E. R.","contributorId":65109,"corporation":false,"usgs":true,"family":"McFarland","given":"E.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":200175,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":31072,"text":"wsp2370H - 1998 - Evaluation of the hydrologic system and selected water-management alternatives in the Owens Valley, California","interactions":[],"lastModifiedDate":"2024-09-23T19:23:03.677042","indexId":"wsp2370H","displayToPublicDate":"2000-02-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2370","chapter":"H","displayTitle":"Evaluation of the Hydrologic System and Selected Water-Management Alternatives in the Owens Valley, California","title":"Evaluation of the hydrologic system and selected water-management alternatives in the Owens Valley, California","docAbstract":"The Owens Valley, a long, narrow valley along the east side of the Sierra Nevada in east-central California, is the main source of water for the city of Los Angeles. The city diverts most of the surface water in the valley into the Owens River-Los Angeles Aqueduct system, which transports the water more than 200 miles south to areas of distribution and use. Additionally, ground water is pumped or flows from wells to supplement the surface-water diversions to the river- aqueduct system. Pumpage from wells needed to supplement water export has increased since 1970, when a second aqueduct was put into service, and local residents have expressed concerns that the increased pumping may have a detrimental effect on the environment and the native vegetation (indigenous alkaline scrub and meadow plant communities) in the valley. Native vegetation on the valley floor depends on soil moisture derived from precipitation and from the unconfined part of a multilayered ground-water system. This report, which describes the evaluation of the hydrologic system and selected water-management alternatives, is one in a series designed to identify the effects that ground-water pumping has on native vegetation and evaluate alternative strategies to mitigate any adverse effects caused by pumping.
The hydrologic system of the Owens Valley can be conceptualized as having three parts: (1) an unsaturated zone affected by precipitation and evapotranspiration; (2) a surface-water system composed of the Owens River, the Los Angeles Aqueduct, tributary streams, canals, ditches, and ponds; and (3) a saturated ground-water system contained in the valley fill.
Analysis of the hydrologic system was aided by development of a ground-water flow model of the \"aquifer system,\" which is defined as the most active part of the ground-water system and which includes nearly all of the Owens Valley except for the area surrounding the Owens Lake. The model was calibrated and verified for water years 1963-88 and used to evaluate general concepts of the hydrologic system and the effects of past water-management practices. The model also was used to evaluate the likely effects of selected water-management alternatives designed to lessen the adverse effects of ground-water pumping on native vegetation.
Results of the model simulations confirm that a major change in the hydrologic system was caused by the additional export of water from the valley beginning in 1970. Average ground-water pumpage increased by a factor of five, discharge from springs decreased almost to zero, reaches of the Owens River that previously had gained water from the aquifer system began losing water, and total evapotranspiration by native plants decreased by about 35 percent.
Water-management practices as of 1988 were defined and evaluated using the model. Simulation results indicate that increased ground-water pumpage since 1985 for enhancement and mitigation projects within the Owens Valley has further stressed the aquifer system and resulted in declines of the water table and reduced evapotranspiration. Most of the water-table declines are beneath the western alluvial fans and in the immediate vicinity of production wells. The water-table altitude beneath the valley floor has remained relatively constant over time because of hydrologic buffers, such as evapotranspiration, springs, and permanent surface-water features. These buffers adjust the quantity of water exchanged with the aquifer system and effectively minimize variations in water-table altitude. The widespread presence of hydrologic buffers is the primary reason the water-table altitude beneath the valley floor has remained relatively constant since 1970 despite major changes in the type and location of ground-water discharge.
Evaluation of selected water-management alternatives indicates that long-term variations in average runoff to the Owens Valley of as much as 10 percent will not have a significant effect on the water-table altitude. However, reductions in pumpage to an average annual value of about 75,000 acre-ft/yr are needed to maintain the water table at the same altitude as observed during water year 1984. A 9-year transient simulation of dry, average, and wet conditions indicates that the aquifer system takes several years to recover from increased pumping during a drought, even when followed by average and above-average runoff and recharge. Increasing recharge from selected tributary streams by additional diversion of high flows onto the alluvial fans, increasing artificial recharge near well fields, and allocating more pumpage to the Bishop area may be useful in mitigating the adverse effects on native vegetation caused by drought and short-term increases in pumpage.
Analysis of the optimal use of the existing well fields to minimize drawdown of the water table indicates no significant lessening of adverse effects on native vegetation at any of the well fields at the end of a 1-year simulation. Some improvement might result from pumping from a few high-capacity wells in a small area, such as the Thibaut-Sawmill well field; pumping from the upper elevations of alluvial fans, such as the Bishop well field; or pumping in an area surrounded by irrigated lands, such as the Big Pine well field. Use of these water-management techniques would provide some flexibility in management from one year to another, but would not solve the basic problem that increased ground-water pumpage causes decreases in evapotranspiration and in the biomass of native vegetation. Furthermore, the highly transmissive and narrow aquifer system will transmit the effects of pumping to other more sensitive areas of the valley within a couple of years.
Other possible changes in water management that might be useful in minimizing the short-term effects of pumping on native vegetation include sealing well perforations in the unconfined part of the aquifer system; rotating pumpage among well fields; continuing or renewing use of unlined surface-water features such as canals and ditches; developing recharge and extraction facilities in deeper volcanic deposits near Big Pine or in alluvial fan deposits along the east side of the valley; installing additional wells along the west side of the Owens Lake; and conjunctively using other ground-water basins between the Owens Valley and Los Angeles to store exported water for subsequent extraction and use during droughts.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wsp2370H","collaboration":"Prepared in cooperation with the Inyo County and the Los Angeles Department of Water and Power","usgsCitation":"Danskin, W.R., 1998, Evaluation of the hydrologic system and selected water-management alternatives in the Owens Valley, California: U.S. Geological Survey Water-Supply Paper 2370-H, 175 p., https://doi.org/10.3133/wsp2370H.","productDescription":"175 p., 6 plates in pocket","numberOfPages":"175","costCenters":[],"links":[{"id":462155,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wsp/2370h/wsp2370h_plates1-3.pdf","text":"Plates 1 to 3","size":"6 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":59631,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/2370h/wsp2370h.pdf","text":"Report","size":"9 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":160967,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/2370h/covrthb.jpg"}],"contact":"District Chief
U.S. Geological Survey
Placer Hall, Suite 2012
6000 J Street
Sacramento, CA 95819
The factors related to the joint probabilty of flooding on paired streams were investigated and quantified to provide information to aid in the design of hydraulic structures where the joint probabilty of flooding is an element of the design criteria. Stream pairs were considered to have flooded jointly at the design-year flood threshold (corresponding to the 2-, 10-, 25-, or 50-year instantaneous peak streamflow) if peak streamflows at both streams in the pair were observed or predicted to have equaled or exceeded the threshold on a given calendar day. Daily mean streamflow data were used as a substitute for instantaneous peak streamflow data to determine which flood thresholds were equaled or exceeded on any given day. Instantaneous peak streamflow data, when available, were used preferentially to assess flood-threshold exceedance.
Daily mean streamflow data for each stream were paired with concurrent daily mean streamflow data at the other streams. Observed probabilities of joint flooding, determined for the 2-, 10-, 25-, and 50-year flood thresholds, were computed as the ratios of the total number of days when streamflows at both streams concurrently equaled or exceeded their flood thresholds (events) to the total number of days where streamflows at either stream equaled or exceeded its flood threshold (trials).
A combination of correlation analyses, graphical analyses, and logistic-regression analyses were used to identify and quantify factors associated with the observed probabilities of joint flooding (event-trial ratios). The analyses indicated that the distance between drainage area centroids, the ratio of the smaller to larger drainage area, the mean drainage area, and the centroid angle adjusted 30 degrees were the basin characteristics most closely associated with the joint probabilty of flooding on paired streams in Ohio. In general, the analyses indicated that the joint probabilty of flooding decreases with an increase in centroid distance and increases with increases in drainage area ratio, mean drainage area, and centroid angle adjusted 30 degrees.
Logistic-regression equations were developed, which can be used to estimate the probability that streamflows at two streams jointly equal or exceed the 2-year flood threshold given that the streamflow at one of the two streams equals or exceeds the 2-year flood threshold. The logistic-regression equations are applicable to stream pairs in Ohio (and border areas of adjacent states) that are unregulated, free of significant urban influences, and have characteristics similar to those of the 304 gaged stream pairs used in the logistic-regression analyses.
Contingency tables were constructed and analyzed to provide information about the bivariate distribution of floods on paired streams. The contingency tables showed that the percentage of trials in which both streams in the pair concurrently flood at identical recurrence-interval ranges generally increased as centroid distances decreased and was greatest for stream pairs with adjusted centroid angles greater than or equal to 60 degrees and drainage area ratios greater than or equal to 0.01. Also, as centroid distance increased, streamflow at one stream in the pair was more likely to be in a less than 2-year recurrence-interval range when streamflow at the second stream was in a 2-year or greater recurrence-interval range.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri984238","usgsCitation":"Koltun, G., and Sherwood, J.M., 1998, Factors related to the joint probability of flooding on paired streams: U.S. Geological Survey Water-Resources Investigations Report 98-4238, x, 32 p. :ill., map ;28 cm., https://doi.org/10.3133/wri984238.","productDescription":"x, 32 p. :ill., map ;28 cm.","numberOfPages":"39","costCenters":[],"links":[{"id":125158,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1998/4238/coverthb.jpg"},{"id":2151,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1998/4238/wri19984238.pdf","text":"Report","size":"1.38 MB","linkFileType":{"id":1,"text":"pdf"},"description":"WRI 1998-4238"}],"country":"United States","state":"Indiana, Kentucky, Michigan, Ohio, Pennsylvania, West Virginia","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -85.71533203125,\n 38.08268954483802\n ],\n [\n -79.60693359375,\n 38.08268954483802\n ],\n [\n -79.60693359375,\n 42.431565872579185\n ],\n [\n -85.71533203125,\n 42.431565872579185\n ],\n [\n -85.71533203125,\n 38.08268954483802\n ]\n ]\n ]\n }\n }\n ]\n}","contact":"Director, Ohio Water Science Center
U.S. Geological Survey
6460 Busch Blvd.
Columbus, OH 43229
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