Director,
Geology, Minerals, Energy, and Geophysics Science Center
U.S. Geological Survey
345 Middlefield Road, MS 901
Menlo Park, CA 94025-3591
Two water-velocity surveys in the vicinity of the discharge-release gates were performed at the Salamonie Lake flood-control reservoir in northeastern Indiana during periods of high-discharge release. One survey was done in the spring when the reservoir pool was at high elevation; the other survey was in the winter when the reservoir pool was low.
\nThe maximum measured velocity was 2.4 feet per second for the spring survey and 1.9 feet per second for the winter survey. The maximum measured velocities occurred in the immediate vicinity of the spillway tower containing the discharge-release gates. Velocity-field magnitudes diminished rapidly with distance from the tower. Beyond an estimated 40 feet from the tower, velocity magnitudes were below 0.5 feet per second.
\nFor the spring and winter surveys, data were collected along four transects that were parallel to the face of the spillway tower. The transects were at the following approximate distances from the spillway tower: 900, 600, and 300 feet and as close to the tower as practical. For the spring and winter surveys, velocity-contour plots were produced for the transects closest to the tower. Plots were not made for the transects at 900-, 600-, and 300-foot intervals because velocities were negligible at these distances.
\nAn acoustic Doppler current profiler (ADCP) mounted on a boat was used to collect velocity and depth data and to compute positions of the velocity and depth data relative to the boat track. A global positioning system (GPS) was used to collect earth-referenced position data, and a GPS base station receiver was used to improve the accuracy of the earth-referenced position data. The earth-referenced position data were used to transform the ADCP-computed positions (which were relative to boat tracks) to positions referenced to a point on the spillway tower.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Indianapolis, IN","doi":"10.3133/ofr99228","issn":"0094-9140","collaboration":"U.S. Army Corps of Engineers","usgsCitation":"Morlock, S.E., and Stewart, J., 2000, Surveys of water velocities in the vicinity of the discharge-release gates of Salamonie Lake Dam, northeastern Indiana, spring and winter 1998: U.S. Geological Survey Open-File Report 99-228, iv, 11 p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr99228.","productDescription":"iv, 11 p. :ill., maps ;28 cm.","startPage":"1","endPage":"11","numberOfPages":"15","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":346,"text":"Indiana Water Science 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Islands","interactions":[],"lastModifiedDate":"2018-01-04T13:06:24","indexId":"70178645","displayToPublicDate":"2000-10-17T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2734,"text":"Micronesica","active":true,"publicationSubtype":{"id":10}},"title":"Population status of the Tinian Monarch (Monarcha takatsukasae) on Tinian, Commonwealth of the Northern Mariana Islands","docAbstract":"We conducted surveys to evaluate the current population status of the Tinian Monarch (Monarcha takatsukasae), an insectivorous forest bird restricted to the island of Tinian, Commonwealth of the Northern Mariana Islands. In 1996, we recounted transects surveyed in 1982 and used the same analysis procedure to compare 1982 and 1996 population estimates. The 1996 population estimate was 55,721 ± 3,846 SE (48,345–63,495 95% CI), which is 57% higher than our estimate of 35,846 ± 2,211 SE (31,668–40,337 95% CI) for 1982. Vegetation density, measured by canopy cover and lateral visibility at each station, has also increased since 1982. Our data suggest that the Tinian Monarch population has increased possibly due to increased habitat availability, but remains at risk both from an accidental introduction of brown tree snakes (Boiga irregularis) to the island and stochastic processes.
","language":"English","publisher":"University of Guam","publisherLocation":"Agana, Guam","usgsCitation":"Lusk, M., Hess, S.C., Reynolds, M.H., and Johnston, S., 2000, Population status of the Tinian Monarch (Monarcha takatsukasae) on Tinian, Commonwealth of the Northern Mariana Islands: Micronesica, v. 32, no. 2, p. 181-190.","productDescription":"10 p.","startPage":"181","endPage":"190","costCenters":[{"id":521,"text":"Pacific Island Ecosystems Research Center","active":false,"usgs":true}],"links":[{"id":331413,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Northern Mariana Islands","state":"Tinian","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 145.59476852416992,\n 14.989726842042788\n ],\n [\n 145.59030532836914,\n 14.989892662099416\n ],\n [\n 145.58876037597656,\n 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The effects of these elevated trace element and semi-volatile organic compound concentrations on aquatic life in these basins may merit further investigation. \r\n","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr0087","issn":"0094-9140","usgsCitation":"McConnell, J.B., Stamey, T.C., Persinger, H., and McFadden, K., 2000, Trace elements and semi-volatile organic compounds in bed sediments from streams and impoundments at Fort Gordon, Georgia: U.S. Geological Survey Open-File Report 2000-87, vi, 39 p., 1 over-size sheet, :col. maps ;28 cm., https://doi.org/10.3133/ofr0087.","productDescription":"vi, 39 p., 1 over-size sheet, :col. maps ;28 cm.","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":155541,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0087/report-thumb.jpg"},{"id":51653,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2000/0087/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":94150,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0087/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":7636,"rank":200,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/ofr00-87/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Georgia","city":"Fort Gordon","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -83.71307373046874,\n 35.67068501330236\n ],\n [\n -83.71307373046874,\n 35.67068501330236\n ],\n [\n -83.7103271484375,\n 35.67068501330236\n ],\n [\n -83.7103271484375,\n 35.67068501330236\n ],\n [\n -83.71307373046874,\n 35.67068501330236\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -82.64465332031249,\n 33.15709799197017\n ],\n [\n -82.64465332031249,\n 33.684353657331016\n ],\n [\n -81.837158203125,\n 33.684353657331016\n ],\n [\n -81.837158203125,\n 33.15709799197017\n ],\n [\n -82.64465332031249,\n 33.15709799197017\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699915","contributors":{"authors":[{"text":"McConnell, James B.","contributorId":28224,"corporation":false,"usgs":true,"family":"McConnell","given":"James","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":187684,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stamey, T. 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\nSUDS2ASC has been used previously to create an ASCII file of three-component seismic data for an individual recording station. However, many seismic processing packages have difficulty reading in ASCII data. In addition, it may be cumbersome to process a separate file for each recording station, particularly if traces from different recording stations contain a different number of data samples and/or a different start time.
\nThis new program - SUDS2SEGY - combines these recording station files into a single SEGY file. In addition, SUDS2SEGY normalizes the trace times so that each trace starts at a given time and consists of a fixed number of samples. This normalization allows seismic data from many different stations to be read in as a single \"data gather\". SUDS2SEGY also produces a report summarizing the offset and maximum absolute amplitude for each component in a station file. These data are output separately to an ASCII file and can be subsequently input to a plotting package.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00141","issn":"0094-9140","usgsCitation":"Goldman, M., 2000, Program to convert SUDS2ASC files to a single binary SEGY file: U.S. Geological Survey Open-File Report 2000-141, Readme; SUDS2SEGY: source code; Documentation; SUDS2SEGY 1.0.tar, https://doi.org/10.3133/ofr00141.","productDescription":"Readme; SUDS2SEGY: source code; Documentation; SUDS2SEGY 1.0.tar","additionalOnlineFiles":"Y","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":154461,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1342,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/0141/","linkFileType":{"id":5,"text":"html"}},{"id":281437,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2000/0141/README.txt"},{"id":281438,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2000/0141/SUDS2SEGY.cc"},{"id":281439,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0141/DOCUMENTATION.txt"},{"id":281440,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2000/0141/SUDS2SEGY_1.0.tar"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9be4b07f02db65e0c9","contributors":{"authors":[{"text":"Goldman, Mark","contributorId":21637,"corporation":false,"usgs":true,"family":"Goldman","given":"Mark","affiliations":[],"preferred":false,"id":189633,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":23029,"text":"ofr00114 - 2000 - Analytical results for total-digestions, EPA-1312 leach, and net acid production for twenty-three abandoned metal-mining related wastes in the Boulder River watershed, northern Jefferson County, Montana","interactions":[],"lastModifiedDate":"2020-02-23T17:22:42","indexId":"ofr00114","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-114","title":"Analytical results for total-digestions, EPA-1312 leach, and net acid production for twenty-three abandoned metal-mining related wastes in the Boulder River watershed, northern Jefferson County, Montana","docAbstract":"Metal-mining related wastes in the Boulder River basin study area in northern Jefferson County, Montana, have been implicated in their detrimental effects on water quality with regard to acid generation and toxic-metal solubilization during snow melt and storm water runoff events. This degradation of water quality is defined chiefly by the “Class 1 Aquatic Life Standards” that give limits for certain dissolved metal concentrations according to water alkalinity.
Veins enriched in base- and precious metals were explored and mined in the Basin, Cataract Creek, and High Ore Creek drainages over a period of more than 70 years. Extracted minerals included galena, sphalerite, pyrite, chalcopyrite, tetrahedrite and arsenopyrite. Most of the metal-mining wastes in the study area were identified and described by the Montana Bureau of Mines and Geology. In 1997, the U.S. Geological Survey collected 20 composite samples of mine-dump or tailings waste from ten sites in the Basin and Cataract Creek drainages, and two samples from one site in the High Ore Creek drainage. Desborough and Fey presented data concerning acid generation potential, mineralogy, concentrations of certain metals by energy-dispersive X-ray fluorescence (EDXRF), and trace-element leachability of mine and exploration wastes from the ten sites of the Basin and Cataract Creek drainages. The present report presents total-digestion major- and trace-element analyses, net acid production (NAP), and results from the EPA-1312 synthetic precipitation leach procedure (SPLP) performed on the same composite samples from the ten sites from the Basin and Cataract Creek drainages, and two composite samples from the site in the High Ore Creek drainage.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr00114","issn":"0094-9140","usgsCitation":"Fey, D.L., Desborough, G.A., and Finney, C.J., 2000, Analytical results for total-digestions, EPA-1312 leach, and net acid production for twenty-three abandoned metal-mining related wastes in the Boulder River watershed, northern Jefferson County, Montana: U.S. Geological Survey Open-File Report 2000-114, Report: i, 17 p.; 4 Tables, https://doi.org/10.3133/ofr00114.","productDescription":"Report: i, 17 p.; 4 Tables","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":102,"text":"Abandoned Mine Lands Initiative","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":340593,"rank":3,"type":{"id":27,"text":"Table"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/ofr20000114_table1.xls","text":"Table 1","size":"18 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"Table 1","linkHelpText":"- Sample numbers, localities, size estimates, and site descriptions of dump samples from the Boulder Watershed study area"},{"id":340594,"rank":4,"type":{"id":27,"text":"Table"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/ofr20000114_table2.xls","text":"Table 2","size":"20.5 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"Table 2","linkHelpText":"- Total-digestion ICP-AES analyses of mine wastes collected from the Boulder River watershed study area"},{"id":340595,"rank":5,"type":{"id":27,"text":"Table"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/ofr20000114_table3.xls","text":"Table 3","size":"24 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"Table 3","linkHelpText":"- pH, conductivities, ICP-AES analyses of EPA 1312 leach solutions, and Net Acid Production (NAP) of mine waste samples collected from Boulder River Watershed study area"},{"id":340596,"rank":6,"type":{"id":27,"text":"Table"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/ofr20000114_table4.xls","text":"Table 4","size":"19.5 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"Table 4","linkHelpText":"- NAP, summed dissolved metals As+Cd+Cu+Pb+Zn and dissolved iron, in EPA -1312 leach solutions, and chemical ranks of mine wastes"},{"id":341933,"rank":7,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/"},{"id":339895,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/ofr-00-0114.pdf","text":"Report","size":"250 kB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 2000-0114"},{"id":155139,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/coverthb.jpg"}],"country":"United States","state":"Montana","county":"Jefferson County","otherGeospatial":"Boulder River watershed","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -112.4066162109375,\n 46.2\n ],\n [\n -111.79412841796875,\n 46.2\n ],\n [\n -111.79412841796875,\n 46.5720787149159\n ],\n [\n -112.4066162109375,\n 46.5720787149159\n ],\n [\n -112.4066162109375,\n 46.2\n ]\n ]\n ]\n }\n }\n ]\n}","contact":"Center Director, Central Mineral and Environmental Resources Science Center
U.S. Geological Survey
Box 25046, Mail Stop 973
Denver, CO 80225
This paper summarizes the steps taken in the generation of the global 1-km AVHRR land dataset, and it documents an evaluation of the data product with respect to the original specifications and its usefulness in research and applications to date. The evaluation addresses data characterization, processing, compositing and handling issues. Examples of the main scientific outputs are presented and options for improved processing are outlined and prioritized. The dataset has made a significant contribution, and a strong recommendation is made for its reprocessing and continuation to produce a long-term record for global change research.
","language":"English","publisher":"Taylor & Francis","doi":"10.1080/01431160050021259","usgsCitation":"Teillet, P., El Saleous, N., Hansen, M., Eidenshink, J.C., Justice, C., and Townshend, J., 2000, An evaluation of the global 1-km AVHRR land dataset: International Journal of Remote Sensing, v. 21, no. 10, p. 1987-2021, https://doi.org/10.1080/01431160050021259.","productDescription":"35 p.","startPage":"1987","endPage":"2021","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":310583,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"10","noUsgsAuthors":false,"publicationDate":"2010-11-25","publicationStatus":"PW","scienceBaseUri":"562b5a28e4b00162522207ba","contributors":{"authors":[{"text":"Teillet, P.M.","contributorId":23717,"corporation":false,"usgs":true,"family":"Teillet","given":"P.M.","email":"","affiliations":[],"preferred":false,"id":578244,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"El Saleous, N.","contributorId":149387,"corporation":false,"usgs":false,"family":"El Saleous","given":"N.","email":"","affiliations":[],"preferred":false,"id":578245,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hansen, M.C.","contributorId":69690,"corporation":false,"usgs":false,"family":"Hansen","given":"M.C.","email":"","affiliations":[{"id":33433,"text":"University of Maryland, College Park","active":true,"usgs":false}],"preferred":false,"id":578246,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Eidenshink, Jeffery C. eidenshink@usgs.gov","contributorId":1352,"corporation":false,"usgs":true,"family":"Eidenshink","given":"Jeffery","email":"eidenshink@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":true,"id":578247,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Justice, C.O.","contributorId":36450,"corporation":false,"usgs":true,"family":"Justice","given":"C.O.","email":"","affiliations":[],"preferred":false,"id":578248,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Townshend, J.R.G.","contributorId":15321,"corporation":false,"usgs":true,"family":"Townshend","given":"J.R.G.","email":"","affiliations":[],"preferred":false,"id":578249,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":32326,"text":"ofr00163 - 2000 - An aeromagnetic survey in Yellowstone National Park: A web site for distribution of data","interactions":[],"lastModifiedDate":"2021-12-16T22:37:42.757218","indexId":"ofr00163","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-163","title":"An aeromagnetic survey in Yellowstone National Park: A web site for distribution of data","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00163","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2000, An aeromagnetic survey in Yellowstone National Park: A web site for distribution of data: U.S. Geological Survey Open-File Report 2000-163, HTML Document, https://doi.org/10.3133/ofr00163.","productDescription":"HTML Document","costCenters":[],"links":[{"id":393030,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25694.htm"},{"id":161304,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":3311,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0163/","linkFileType":{"id":5,"text":"html"}}],"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 -111.02783203125,\n 44.05601169578525\n ],\n [\n -109.53369140625,\n 44.05601169578525\n ],\n [\n -109.53369140625,\n 45.0930\n ],\n [\n -111.02783203125,\n 45.0930\n ],\n [\n -111.02783203125,\n 44.05601169578525\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adbe4b07f02db685c49","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":529369,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":32322,"text":"ofr00124 - 2000 - Acoustic mapping of the regional seafloor geology in and around Hawaiian ocean dredged-material disposal sites","interactions":[],"lastModifiedDate":"2025-01-14T17:40:55.930452","indexId":"ofr00124","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-124","title":"Acoustic mapping of the regional seafloor geology in and around Hawaiian ocean dredged-material disposal sites","docAbstract":"During January and February 1998 the U.S. Geological Survey Coastal and Marine Geology Team (USGS) conducted regional high-resolution multibeam mapping surveys of the area surrounding EPA-designated ocean disposal sites located offshore of the Hawaiian Islands of Oahu, Kauai, Maui, and Hawaii. The sites are all located within 5 nautical miles of shore on insular shelves or slopes. Regional maps were required of areas much larger than the disposal sites themselves to assess both the regional seafloor geology and the immediate vicinity of the disposal sites. The purpose of the disposal site surveys was to delimit the extent of disposal material by producing detailed bathymetric and backscatter maps of the seafloor with a ± 1 m spatial accuracy and <1% depth error. The advantage of using multibeam over conventional towed, single-beam sidescan sonar is that the multibeam data are accurately georeferenced for precise location of all imaged features. The multibeam produces a coregistered acoustic-backscatter map that is often required to locate individual disposal deposits. These data were collected by the USGS as part of its regional seafloor mapping and in support of ocean disposal site monitoring studies conducted in cooperation with the US Environmental Protection Agency (EPA) and the US Army Corps of Engineers (COE).","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr00124","usgsCitation":"Torresan, M.E., and Gardner, J.V., 2000, Acoustic mapping of the regional seafloor geology in and around Hawaiian ocean dredged-material disposal sites: U.S. Geological Survey Open-File Report 2000-124, HTML document, https://doi.org/10.3133/ofr00124.","productDescription":"HTML document","onlineOnly":"Y","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":60341,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2000/0124/summary.html","linkFileType":{"id":1,"text":"pdf"}},{"id":161274,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0124/report-thumb.jpg"},{"id":3308,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/0124/","linkFileType":{"id":5,"text":"html"}},{"id":466237,"rank":7,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25600.htm","text":"Hilo area","linkFileType":{"id":5,"text":"html"}},{"id":466236,"rank":6,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25599.htm","text":"Maui","linkFileType":{"id":5,"text":"html"}},{"id":466235,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25598.htm","text":"Oahu","linkFileType":{"id":5,"text":"html"}},{"id":466234,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25597.htm","text":"Kauai","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Hawai'i","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -178.31,18.91 ], [ -178.31,28.4 ], [ -154.81,28.4 ], [ -154.81,18.91 ], [ -178.31,18.91 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b13e4b07f02db6a34ed","contributors":{"authors":[{"text":"Torresan, Michael E. mtorresan@usgs.gov","contributorId":4392,"corporation":false,"usgs":true,"family":"Torresan","given":"Michael","email":"mtorresan@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":208261,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gardner, James V.","contributorId":93035,"corporation":false,"usgs":true,"family":"Gardner","given":"James","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":208262,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":32325,"text":"ofr00155 - 2000 - Three aeromagnetic surveys in south central Arizona: A web site for distribution of data","interactions":[],"lastModifiedDate":"2022-05-11T19:20:02.362002","indexId":"ofr00155","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-155","title":"Three aeromagnetic surveys in south central Arizona: A web site for distribution of data","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr00155","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2000, Three aeromagnetic surveys in south central Arizona: A web site for distribution of data: U.S. Geological Survey Open-File Report 2000-155, HTML Document, https://doi.org/10.3133/ofr00155.","productDescription":"HTML Document","costCenters":[],"links":[{"id":161277,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":400541,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25627.htm"},{"id":3310,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0155/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Arizona","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.5,\n 31.329\n ],\n [\n -110.583,\n 31.329\n ],\n [\n -110.583,\n 32.75\n ],\n [\n -111.5,\n 32.75\n ],\n [\n -111.5,\n 31.329\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a53e4b07f02db62bb64","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":529368,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":5510,"text":"fs10800 - 2000 - National land cover dataset","interactions":[{"subject":{"id":5509,"text":"fs13699 - 1999 - National land cover dataset","indexId":"fs13699","publicationYear":"1999","noYear":false,"title":"National land cover dataset"},"predicate":"SUPERSEDED_BY","object":{"id":5510,"text":"fs10800 - 2000 - National land cover dataset","indexId":"fs10800","publicationYear":"2000","noYear":false,"title":"National land cover dataset"},"id":1}],"lastModifiedDate":"2022-04-28T10:53:26.138336","indexId":"fs10800","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","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":"108-00","title":"National land cover dataset","docAbstract":"The U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency, has produced a land cover dataset for the conterminous United States on the basis of 1992 Landsat thematic mapper imagery and supplemental data. The National Land Cover Dataset (NLCD) is a component of the USGS Land Cover Characterization Program. The seamless NLCD contains 21 categories of land cover information suitable for a variety of State and regional applications, including landscape analysis, land management, and modeling nutrient and pesticide runoff. The NLCD is distributed by State as 30-meter resolution raster images in an Albers Equal-Area map projection.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/fs10800","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2000, National land cover dataset (Supersedes FS-136-99): U.S. Geological Survey Fact Sheet 108-00, 1 p., https://doi.org/10.3133/fs10800.","productDescription":"1 p.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true},{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":32081,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/2000/0108/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":122815,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/fs/2000/0108/report-thumb.jpg"},{"id":108,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/fs/2000/0108/","linkFileType":{"id":5,"text":"html"}}],"edition":"Supersedes FS-136-99","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db6983b7","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":528627,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":24890,"text":"ofr200078 - 2000 - Water-quality data collected on Prairie Island near Welch, Minnesota, 1998-99","interactions":[],"lastModifiedDate":"2018-04-02T12:11:00","indexId":"ofr200078","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-78","title":"Water-quality data collected on Prairie Island near Welch, Minnesota, 1998-99","docAbstract":"This report presents the water-quality data collected during 1998-99 from the land owned by the Prairie Island Indian Community at the northern end of Prairie Island, Minnesota. The data were collected by the U.S. Geological Survey in cooperation with the Prairie Island Indian Community. Seventeen monitoring wells were installed by the U.S. Geological Survey in 1998. Fifteen of the wells were installed with the screen at the water-table. The well screens for the other two wells were approximately 26 and 56 feet below the water table. Samples were collected from the wells in 1998. The water-quality properties and constituents determined for the 17 wells include temperature, pH, specific conductance, dissolved oxygen, alkalinity, major ions, nutrients, and iron and manganese. Water samples collected from two of the wells were analyzed for common agricultural pesticides. In addition, semiquantitative immunoassay screens for presence of atrazine and related triazine herbicides were conducted on samples from all 17 wells. Water-surface altitudes were measured during 1999 in the 17 wells and at 8 surface-water sites.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Mounds View, MN","doi":"10.3133/ofr200078","issn":"0094-9140","collaboration":"Prepared in cooperation with the Prairie Island Indian Community","usgsCitation":"Winterstein, T.A., 2000, Water-quality data collected on Prairie Island near Welch, Minnesota, 1998-99: U.S. Geological Survey Open-File Report 2000-78, iv, 25 p., https://doi.org/10.3133/ofr200078.","productDescription":"iv, 25 p.","onlineOnly":"N","additionalOnlineFiles":"N","temporalStart":"1998-01-01","temporalEnd":"1999-12-31","costCenters":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"links":[{"id":157253,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0078/report-thumb.jpg"},{"id":12219,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://mn.water.usgs.gov/publications/pubs/00-78.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":53878,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0078/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Minnesota","otherGeospatial":"Prairie Island","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -92.75,44.61666666666667 ], [ -92.75,44.7 ], [ -92.61666666666666,44.7 ], [ -92.61666666666666,44.61666666666667 ], [ -92.75,44.61666666666667 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f2e4b07f02db5eecf2","contributors":{"authors":[{"text":"Winterstein, Thomas A.","contributorId":25971,"corporation":false,"usgs":true,"family":"Winterstein","given":"Thomas","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":192748,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":23185,"text":"ofr00138 - 2000 - Depth to bedrock in the upper San Pedro Valley, Cochise County, southeastern Arizona","interactions":[],"lastModifiedDate":"2012-02-02T00:07:50","indexId":"ofr00138","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-138","title":"Depth to bedrock in the upper San Pedro Valley, Cochise County, southeastern Arizona","docAbstract":"The thickness, distribution, and character of alluvial sediments that were deposited in the structural subbasins of the upper San Pedro basin in southeastern Arizona during the late Cenozoic provide important constraints on ground-water availability of the area. Two sedimentary units are recognized; the Oligocene and Miocene Pantano(?) Formation and an unnamed upper Miocene through lower Pleistocene unit termed basin fill. \r\n\r\nThe complete Bouguer gravity anomaly map shows that there are three major structural subbasins in the upper San Pedro basin north of the international border with Mexico. The Tombstone subbasin is north of Tombstone, and two more are located north and south of Sierra Vista, respectively. This report concentrates on the two subbasins north and south of Sierra Vista. The northern subbasin (termed the Huachuca City subbasin) extends from east of Huachuca City to northeast of Whetstone, and the southern subbasin (termed the Palominas subbasin) extends southward from a line between Nicksville and Hereford to the border. The locations and shapes of these subbasins, thickness of basin fill, and depth to bedrock were estimated using a procedure involving interpolation of (1) the density functions derived in this study, (2) stratigraphic data from water wells, and (3) a residual gravity anomaly grid obtained by subtracting the gravity effects of the bedrock ranges bordering the basin from the complete Bouguer gravity anomaly. \r\n\r\nThis procedure indicates that the subbasins are shallow and contain significant thicknesses of the Pantano(?) Formation in addition to the overlying younger basin fill. The maximum depth to bedrock is about 1,700 m in the Palominas subbasin and 800m in the Huachuca City subbasin; the basin-fill unit occupies the upper 250-350 m in general with local thickenings exceeding 1,000 m in the Palominas subbasin. An east-west trending buried bedrock high beneath Fort Huachuca, Sierra Vista, and Charleston separates the subbasins. The depth to bedrock over this high is 200-500 m and the basin-fill unit ranges from 100 to 200 m thick there. A number of previously unrecognized faults were identified and the lengths of some of the known faults were extended based on reconnaissance geologic mapping, study of driller's logs, interpretation of aerial photographs and thematic mapper satellite images, and inspection of contoured gravity and aeromagnetic anomaly data. Many faults that segment the main San Pedro basin and shape the boundaries of the subbasins are apparently pre-existing faults that have been reactivated by Basin and Range extension.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr00138","issn":"0094-9140","usgsCitation":"Gettings, M.E., and Houser, B.B., 2000, Depth to bedrock in the upper San Pedro Valley, Cochise County, southeastern Arizona: U.S. Geological Survey Open-File Report 2000-138, Online only, https://doi.org/10.3133/ofr00138.","productDescription":"Online only","costCenters":[],"links":[{"id":153794,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1327,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/of00-138/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ab1e4b07f02db66e818","contributors":{"authors":[{"text":"Gettings, M. E.","contributorId":25148,"corporation":false,"usgs":true,"family":"Gettings","given":"M.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":189599,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Houser, Brenda B.","contributorId":20772,"corporation":false,"usgs":true,"family":"Houser","given":"Brenda","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":189598,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":21982,"text":"ofr0011B - 2000 - Dataset of aggregate producers in New Mexico","interactions":[],"lastModifiedDate":"2023-07-11T20:39:23.441559","indexId":"ofr0011B","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-11","chapter":"B","title":"Dataset of aggregate producers in New Mexico","docAbstract":"This report presents data, including latitude and longitude, for aggregate sites in New Mexico that were believed to be active in the period 1997-1999. The data are presented in paper form in Part A of this report and as Microsoft Excel 97 and Data Interchange Format (DIF) files in Part B. The work was undertaken as part of the effort to update information for the National Atlas. This compilation includes data from: the files of U.S. Geological Survey (USGS); company contacts; the New Mexico Bureau of Mines and Mineral Resources, New Mexico Bureau of Mine Inspection, and the Mining and Minerals Division of the New Mexico Energy, Minerals and Natural Resources Department (Hatton and others, 1998); the Bureau of Land Management Information; and direct communications with some of the aggregate operators. Additional information on most of the sites is available in Hatton and others (1998).","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr0011B","usgsCitation":"Orris, G.J., 2000, Dataset of aggregate producers in New Mexico: U.S. Geological Survey Open-File Report 2000-11, HTML Document, https://doi.org/10.3133/ofr0011B.","productDescription":"HTML Document","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":154298,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":418872,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23480.htm","linkFileType":{"id":5,"text":"html"}},{"id":1164,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/0011/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"New Mexico","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -109.05,31.33 ], [ -109.05,37.0 ], [ -103.0,37.0 ], [ -103.0,31.33 ], [ -109.05,31.33 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afee4b07f02db6978a2","contributors":{"authors":[{"text":"Orris, Greta J. 0000-0002-2340-9955 greta@usgs.gov","orcid":"https://orcid.org/0000-0002-2340-9955","contributorId":3472,"corporation":false,"usgs":true,"family":"Orris","given":"Greta","email":"greta@usgs.gov","middleInitial":"J.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":662,"text":"Western Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":186544,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":22972,"text":"ofr00109 - 2000 - check_picks_x: A program for checking the travel time picks of crosswell seismic and radar data","interactions":[],"lastModifiedDate":"2020-02-23T18:01:18","indexId":"ofr00109","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-109","title":"check_picks_x: A program for checking the travel time picks of crosswell seismic and radar data","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00109","issn":"0094-9140","usgsCitation":"Ellefsen, K., 2000, check_picks_x: A program for checking the travel time picks of crosswell seismic and radar data: U.S. Geological Survey Open-File Report 2000-109, HTML, https://doi.org/10.3133/ofr00109.","productDescription":"HTML","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":155951,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1409,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0109/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4795e4b07f02db48d566","contributors":{"authors":[{"text":"Ellefsen, Karl","contributorId":19588,"corporation":false,"usgs":true,"family":"Ellefsen","given":"Karl","affiliations":[],"preferred":false,"id":189219,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":5523,"text":"fs04900 - 2000 - High Plains Regional Ground-water Study web site","interactions":[],"lastModifiedDate":"2017-04-20T16:48:43","indexId":"fs04900","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","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":"049-00","title":"High Plains Regional Ground-water Study web site","docAbstract":"Now available on the Internet is a web site for the U.S. Geological Survey's (USGS) National Water-Quality Assessment (NAWQA) Program-High Plains Regional Ground-Water Study. The purpose of the web site is to provide public access to a wide variety of information on the USGS investigation of the ground-water resources within the High Plains aquifer system. Typical pages on the web site include the following: descriptions of the High Plains NAWQA, the National NAWQA Program, the study-area setting, current and past activities, significant findings, chemical and ancillary data (which can be downloaded), listing and access to publications, links to other sites about the High Plains area, and links to other web sites studying High Plains ground-water resources. The High Plains aquifer is a regional aquifer system that underlies 174,000 square miles in parts of eight States (Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming). Because the study area is so large, the Internet is an ideal way to provide project data and information on a near real-time basis. The web site will be a collection of living documents where project data and information are updated as it becomes available throughout the life of the project. If you have an interest in the High Plains area, you can check this site periodically to learn how the High Plains NAWQA activities are progressing over time and access new data and publications as they become available.
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