Modeling regional and global activities of climatic and human-induced change requires accurate geographic data from which we can develop mathematical and statistical tabulations of attributes and properties of the environment. Many of these models depend on data formatted as raster cells or matrices of pixel values. Recently, it has been demonstrated that regional and global raster datasets are subject to significant error from mathematical projection and that these errors are of such magnitude that model results may be jeopardized (Steinwand, et al., 1995; Yang, et al., 1996; Usery and Seong, 2001; Seong and Usery, 2001). There is a need to develop methods of projection that maintain the accuracy of these datasets to support regional and global analyses and modeling
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr01181","usgsCitation":"Usery, E.L., Seong, J.C., and Steinwand, D., 2002, Methods to achieve accurate projection of regional and global raster databases: U.S. Geological Survey Open-File Report 2001-181, 12 p., https://doi.org/10.3133/ofr01181.","productDescription":"12 p.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":161419,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2001/0181/report-thumb.jpg"},{"id":59726,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0181/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a55e4b07f02db62ce17","contributors":{"authors":[{"text":"Usery, E. Lynn 0000-0002-2766-2173 usery@usgs.gov","orcid":"https://orcid.org/0000-0002-2766-2173","contributorId":231,"corporation":false,"usgs":true,"family":"Usery","given":"E.","email":"usery@usgs.gov","middleInitial":"Lynn","affiliations":[{"id":423,"text":"National Geospatial Program","active":true,"usgs":true}],"preferred":true,"id":205594,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Seong, Jeong Chang","contributorId":75979,"corporation":false,"usgs":true,"family":"Seong","given":"Jeong","email":"","middleInitial":"Chang","affiliations":[],"preferred":false,"id":205596,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Steinwand, Dan","contributorId":31438,"corporation":false,"usgs":true,"family":"Steinwand","given":"Dan","email":"","affiliations":[],"preferred":false,"id":205595,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":44308,"text":"ofr97454 - 2002 - Geochemistry of surface and pore water at USGS coring sites in wetlands of South Florida, 1994 and 1995","interactions":[],"lastModifiedDate":"2022-01-05T12:17:20.325873","indexId":"ofr97454","displayToPublicDate":"1997-01-03T21:50:00","publicationYear":"2002","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":"97-454","title":"Geochemistry of surface and pore water at USGS coring sites in wetlands of South Florida, 1994 and 1995","docAbstract":"In this report, we present preliminary data on surface and pore water geochemistry from 22 sites in south Florida sampled during 1994 and 1995. These results are part of a larger study designed to evaluate the role of biogeochemical processes in sediments in the cycling of carbon, nitrogen, phosphorus, and sulfur in the south Florida ecosystem. The data are briefly discussed in regard to regional trends in the concentrations of chemical species, and general diagenetic processes in sediments. These results are part of a larger study designed to evaluate the role of biogeochemical processes in sediments in the cycling of carbon, nitrogen, phosphorus, and sulfur in the south Florida ecosystem. These elements play a crucial role in regulating organic sedimentation, nutrient dynamics, redox conditions, and the biogeochemistry of mercury in the threatened wetlands of south Florida.\r\n\r\nPore water samples for chemical analyis were obtained using a piston corer/squeezer designed to avoid compression of the sediment and avoid oxidation and contamination of the pore water samples. Results show distinct regional trends in both surface water and pore water geochemistry. Most chemical species in surface and pore water show peak concentrations in Water Conservation Area 2A, with diminishing concentrations to the south and west into Water Conservation Area 3A, and Everglades National Park. The largest differences observed were for phosphate and sulfide, with concentrations in pore waters in Water Conservation Area 2A up to 500x higher than concentrations observed in freshwater marsh areas of Water Conservation Area 3A and Everglades National Park. Sites near the Hillsboro Canal in Water Conservation Area 2A are heavily contaminated with both phosphorus and sulfur. Pore water profiles for dissolved reactive phosphate suggest that recycling of phosphorus at these contaminated sites occurs primarily in the upper 20 cm of sediment. High levels of sulfide in pore water in Water Conservation Area 2A may inhibit mercury methylation here. At sites in Water Conservation Area 3A south of Alligator Alley, sulfide levels are much lower and sulfate reduction in the sediments here may be conducive to methyl mercury formation. Concentration versus depth profiles of biogeochemically important chemical species in pore water at most sites are smoth curves amenable to modelling using standard diagenetic equations. This should allow prediction of rates of biogeochemical processes in these sediments for incorporation in ecosystem models.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr97454","usgsCitation":"Orem, W.H., Lerch, H.E., and Rawlik, P., 2002, Geochemistry of surface and pore water at USGS coring sites in wetlands of South Florida, 1994 and 1995: U.S. Geological Survey Open-File Report 97-454, ii, 55 p., https://doi.org/10.3133/ofr97454.","productDescription":"ii, 55 p.","costCenters":[],"links":[{"id":168853,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1997/0454/coverthb2.jpg"},{"id":3723,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1997/0454/ofr97454.pdf","text":"Report","size":"62.1 MB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 97-454"}],"country":"United States","state":"Florida","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -82.4853515625,\n 24.806681353851964\n ],\n [\n -79.453125,\n 24.806681353851964\n ],\n [\n -79.453125,\n 27.0982539061379\n ],\n [\n -82.4853515625,\n 27.0982539061379\n ],\n [\n -82.4853515625,\n 24.806681353851964\n ]\n ]\n ]\n }\n }\n ]\n}","contact":"Caribbean-Florida Water Science Center
U.S. Geological Survey
3321 College Avenue
Davie, FL 33314
The U.S. Geological Survey (USGS), U.S. Department of the Interior, is the Nation's largest Earth-science information agency. Among its many responsibilities, such as map making and providing information on earthquakes and other natural hazards, the USGS provides information on the Nation's water resources. The USGS has collected and analyzed hydrologic (water-related) information for more than 100 years. In 1889, the first streamflow-gaging station (a site where regular observations of streamflow data are collected) operated in the United States by the USGS was established on the Rio Grande near Embudo, New Mexico. As the need for streamflow data increased, the USGS's streamflow-gaging program has grown to include more than 7,000 continuous-record streamflow-gaging stations. More than 90 percent of these stations are operated with at least partial support from State, local, or other Federal agencies
In Virginia, the Department of Environmental Quality (DEQ) is a major cooperator in the streamflow-gaging program, which consists of 161 continuous-record streamflow-gaging stations located throughout the State (fig. 1). The USGS and DEQ cooperate to publish the annual USGS State data report, 'Water Resources Data-Virginia'; this two-volume publication includes streamflow data collected at the 161 streamflow-gaging stations, chemical data collected at 19 streamflow-gaging stations, and ground-water data collected from more than 250 wells located in Virginia.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr95713","issn":"0094-9140","collaboration":"Prepared in cooperation with the Virginia Department of Environmental Quality - Water Division","usgsCitation":"Moberg, R.M., Rice, K.C., and Powell, E.D., 2002, Measuring streamflow in Virginia (2002 revision) (Revised in 2002): U.S. Geological Survey Open-File Report 95-713, 4 p., https://doi.org/10.3133/ofr95713.","productDescription":"4 p.","costCenters":[{"id":614,"text":"Virginia Water Science Center","active":true,"usgs":true}],"links":[{"id":154929,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1995/0713/report-thumb.jpg"},{"id":53147,"rank":299,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1995/0713/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United 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\"}}]}","edition":"Revised in 2002","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a28e4b07f02db611364","contributors":{"authors":[{"text":"Moberg, Roger M. rmmoberg@usgs.gov","contributorId":3655,"corporation":false,"usgs":true,"family":"Moberg","given":"Roger","email":"rmmoberg@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":191021,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rice, Karen C. 0000-0002-9356-5443 kcrice@usgs.gov","orcid":"https://orcid.org/0000-0002-9356-5443","contributorId":1998,"corporation":false,"usgs":true,"family":"Rice","given":"Karen","email":"kcrice@usgs.gov","middleInitial":"C.","affiliations":[{"id":614,"text":"Virginia Water Science Center","active":true,"usgs":true}],"preferred":false,"id":191020,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Powell, Eugene D.","contributorId":80309,"corporation":false,"usgs":true,"family":"Powell","given":"Eugene","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":191022,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":40865,"text":"ofr02246 - 2002 - Potentiometric surface of the upper Patapsco aquifer in southern Maryland, September 2000","interactions":[],"lastModifiedDate":"2022-09-06T21:29:55.122476","indexId":"ofr02246","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-246","title":"Potentiometric surface of the upper Patapsco aquifer in southern Maryland, September 2000","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02246","usgsCitation":"Curtin, S.E., Andreasen, D., and Wheeler, J.C., 2002, Potentiometric surface of the upper Patapsco aquifer in southern Maryland, September 2000: U.S. Geological Survey Open-File Report 2002-246, 1 Plate: 11.38 × 14.67 inches, https://doi.org/10.3133/ofr02246.","productDescription":"1 Plate: 11.38 × 14.67 inches","costCenters":[],"links":[{"id":406277,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_52800.htm","linkFileType":{"id":5,"text":"html"}},{"id":78742,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2002/0246/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":171531,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2002/0246/report-thumb.jpg"}],"country":"United States","state":"Maryland","otherGeospatial":"Upper Patapsco aquifer","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -76.90155029296875,\n 38.807610542357594\n ],\n [\n -76.387939453125,\n 38.807610542357594\n ],\n [\n -76.387939453125,\n 39.53370327008705\n ],\n [\n -76.90155029296875,\n 39.53370327008705\n ],\n [\n -76.90155029296875,\n 38.807610542357594\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad3e4b07f02db6827bd","contributors":{"authors":[{"text":"Curtin, Stephen E. securtin@usgs.gov","contributorId":3703,"corporation":false,"usgs":true,"family":"Curtin","given":"Stephen","email":"securtin@usgs.gov","middleInitial":"E.","affiliations":[{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true}],"preferred":true,"id":224069,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Andreasen, David C.","contributorId":59003,"corporation":false,"usgs":true,"family":"Andreasen","given":"David C.","affiliations":[],"preferred":false,"id":224071,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wheeler, Judith C.","contributorId":13620,"corporation":false,"usgs":true,"family":"Wheeler","given":"Judith","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":224070,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":41314,"text":"ofr02247 - 2002 - Potentiometric surface of the lower Patapsco aquifer in southern Maryland, September 2000","interactions":[],"lastModifiedDate":"2022-09-06T21:27:00.763399","indexId":"ofr02247","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-247","title":"Potentiometric surface of the lower Patapsco aquifer in southern Maryland, September 2000","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02247","usgsCitation":"Curtin, S.E., Andreasen, D., and Wheeler, J.C., 2002, Potentiometric surface of the lower Patapsco aquifer in southern Maryland, September 2000: U.S. Geological Survey Open-File Report 2002-247, 1 Plate: 11.38 × 14.67 inches, https://doi.org/10.3133/ofr02247.","productDescription":"1 Plate: 11.38 × 14.67 inches","costCenters":[],"links":[{"id":406276,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_52801.htm","linkFileType":{"id":5,"text":"html"}},{"id":79090,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2002/0247/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":170977,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2002/0247/report-thumb.jpg"}],"country":"United States","state":"Maryland","otherGeospatial":"lower Patapsco aquifer","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -77.2917,\n 38.3083\n ],\n [\n -76.25,\n 38.3083\n ],\n [\n -76.25,\n 39.225\n ],\n [\n -77.2917,\n 39.225\n ],\n [\n -77.2917,\n 38.3083\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad4e4b07f02db682e4a","contributors":{"authors":[{"text":"Curtin, Stephen E. securtin@usgs.gov","contributorId":3703,"corporation":false,"usgs":true,"family":"Curtin","given":"Stephen","email":"securtin@usgs.gov","middleInitial":"E.","affiliations":[{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true}],"preferred":true,"id":224810,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Andreasen, David C.","contributorId":59003,"corporation":false,"usgs":true,"family":"Andreasen","given":"David C.","affiliations":[],"preferred":false,"id":224812,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wheeler, Judith C.","contributorId":13620,"corporation":false,"usgs":true,"family":"Wheeler","given":"Judith","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":224811,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":51172,"text":"ofr02262 - 2002 - Fifty-year flood-inundation maps for Tocoa, Honduras","interactions":[],"lastModifiedDate":"2025-08-18T13:59:28.553702","indexId":"ofr02262","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-262","title":"Fifty-year flood-inundation maps for Tocoa, Honduras","docAbstract":"After the devastating floods caused by Hurricane Mitch in 1998, maps of the areas and depths of the 50-year-flood inundation at 15 municipalities in Honduras were prepared as a tool for agencies involved in reconstruction and planning. This report, which is one in a series of 15, presents maps of areas in the municipality of Tocoa that would be inundated by a 50-year flood of Rio Tocoa. Geographic Information System (GIS) coverages of the flood inundation are available on a computer in the municipality of Tocoa as part of the Municipal GIS project and on the Internet at the Flood Hazard Mapping Web page (http://mitchnts1.cr.usgs.gov/projects/floodhazard.html). These coverages allow users to view the flood inundation in much more detail than is possible using the maps in this report.\r\n\r\nWater-surface elevations for an estimated 50-year-flood on Rio Tocoa at Tocoa were estimated using HEC-RAS, a one-dimensional, steady-flow, step-backwater computer program. The channel and floodplain cross sections used in HEC-RAS were developed from an airborne light-detection-and-ranging (LIDAR) topographic survey of the area and a ground survey at one bridge. There are no nearby long-term stream-gaging stations on Rio Tocoa; therefore, the 50-year-flood discharge for Rio Tocoa, 552 cubic meters per second, was estimated using a regression equation that relates the 50-year-flood discharge to drainage area and mean annual precipitation. The drainage area and mean annual precipitation estimated for Rio Tocoa at Tocoa are 204 square kilometers and 1,987 millimeters, respectively. It was assumed that a portion of the 50-year flood, 200 cubic meters per second, would escape the main channel and flow down a side channel before re-entering the main channel again near the lower end of the study area.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02262","usgsCitation":"Kresch, D.L., Mastin, M.C., and Olsen, T.D., 2002, Fifty-year flood-inundation maps for Tocoa, Honduras: U.S. Geological Survey Open-File Report 2002-262, 13 p., https://doi.org/10.3133/ofr02262.","productDescription":"13 p.","costCenters":[],"links":[{"id":4576,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/ofr02262/index.html","linkFileType":{"id":5,"text":"html"}},{"id":179233,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"Honduras","city":"Tocoa","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -89.43251127996213,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 16.43006388749069\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fbe4b07f02db5f47a3","contributors":{"authors":[{"text":"Kresch, David L.","contributorId":46084,"corporation":false,"usgs":true,"family":"Kresch","given":"David","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":243092,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mastin, Mark C. 0000-0003-4018-7861 mcmastin@usgs.gov","orcid":"https://orcid.org/0000-0003-4018-7861","contributorId":1652,"corporation":false,"usgs":true,"family":"Mastin","given":"Mark","email":"mcmastin@usgs.gov","middleInitial":"C.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":243090,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Olsen, T. D.","contributorId":41463,"corporation":false,"usgs":true,"family":"Olsen","given":"T.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":243091,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":50621,"text":"ofr2002131 - 2002 - Geology, Geochemistry and Geophysics of Sedimentary Rock-Hosted Au Deposits in P.R. China","interactions":[],"lastModifiedDate":"2012-02-02T00:10:05","indexId":"ofr2002131","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-131","title":"Geology, Geochemistry and Geophysics of Sedimentary Rock-Hosted Au Deposits in P.R. China","docAbstract":"This is the second report concerning results of a joint project between the U.S. Geological Survey and the Tianjin Geological Academy to study sedimentary rock-hosted Au deposits in P.R. China. Since the 1980s, Chinese geologists have devoted a large-scale exploration and research effort to the deposits. As a result, there are more than 20 million oz of proven Au reserves in sedimentary rock-hosted Au deposits in P.R. China. Additional estimated and inferred resources are present in over 160 deposits and occurrences, which are undergoing exploration. This makes China second to Nevada in contained ounces of Au in Carlin-type deposits. It is likely that many of the Carlin-type Au ore districts in China, when fully developed, could have resource potential comparable to the multi-1,000-tonne Au resource in northern Nevada. The six chapters of this report describe sedimentary rock-hosted Au deposits that were visited during the project. Chapters 1 and 2 provide an overview of sedimentary rock-hosted Au deposits and Carlin-type Au deposits and also provide a working classification for the sedimentary rock-hosted Au deposits. Chapters 3, 4, and 5 provide descriptions that were compiled from the literature in China in three main areas: the Dian-Qian-Gui, the Qinling fold belt, and Middle-Lower Yangtze River areas. Chapter 6 contains a weights-of-evidence (WofE), GIS-based mineral assessment of sedimentary rock-hosted Au deposits in the Qinling fold belt and Dian-Qian-Gui areas. Appendices contain scanned aeromagnetic (Appendix I) and gravity (Appendix II) geophysical maps of south and central China. Data tables of the deposits (Appendix III) also are available in the first report as an interactive database at http://geopubs.wr.usgs.gov/open-file/of98-466/. Geochemical analysis of ore samples from the deposits visited are contained in Appendix IV.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr2002131","isbn":"0607990589","usgsCitation":"Peters, S., 2002, Geology, Geochemistry and Geophysics of Sedimentary Rock-Hosted Au Deposits in P.R. China (Version 1.0): U.S. Geological Survey Open-File Report 2002-131, 1 CD-ROM : col. ill., col. maps ; 4 3/4 in., https://doi.org/10.3133/ofr2002131.","productDescription":"1 CD-ROM : col. ill., col. maps ; 4 3/4 in.","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":162289,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11529,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/of02-131/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c6f7","contributors":{"authors":[{"text":"Peters, Stephen G. speters@usgs.gov","contributorId":2793,"corporation":false,"usgs":true,"family":"Peters","given":"Stephen G.","email":"speters@usgs.gov","affiliations":[{"id":596,"text":"U.S. Geological Survey National Center","active":false,"usgs":true}],"preferred":false,"id":241943,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":57123,"text":"ofr9950T - 2002 - Petroleum systems of the Malay Basin Province, Malaysia","interactions":[],"lastModifiedDate":"2017-02-23T13:12:48","indexId":"ofr9950T","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"99-50","chapter":"T","title":"Petroleum systems of the Malay Basin Province, Malaysia","docAbstract":"The offshore Malay Basin province is a Tertiary oil and gas province composed of a complex of half grabens that were filled by lacustrine shales and continental clastics.These deposits were overlain by clastics of a large delta system that covered the basin.Delta progradation was interupted by transgressions of the South China Sea to the southeast, which finally flooded the basin to form the Gulf of Thailand.Oil and gas from the Oligocene to Miocene lacustrine shales and Miocene deltaic coals is trapped primarily in anticlines formed by inversion of the half grabens during the late Miocene.Hydrocarbon reserves that have been discovered amount to 12 billion barrels of oil equivalent.The U.S. Geological Survey assessment of the estimated quantities of conventional oil, gas and condensate that have the potential to be added to reserves by the year 2025 for this province is 6.3 billion barrels of oil equivalent (BBOE) (U. S. Geological Survey World Energy Assessment Team, 2000).","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9950T","usgsCitation":"Bishop, M.G., 2002, Petroleum systems of the Malay Basin Province, Malaysia: U.S. Geological Survey Open-File Report 99-50, 21 p., https://doi.org/10.3133/ofr9950T.","productDescription":"21 p.","costCenters":[],"links":[{"id":181147,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":5633,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0050/OF99-50T/index.html","linkFileType":{"id":5,"text":"html"}}],"country":"Malaysia","state":"Basin Province","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adce4b07f02db686702","contributors":{"authors":[{"text":"Bishop, Michele G.","contributorId":19586,"corporation":false,"usgs":true,"family":"Bishop","given":"Michele","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":256271,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":50593,"text":"ofr021 - 2002 - Visualization of drifting buoy deployments on upper Detroit River within the Great Lakes Waterway from August 28-30, 2001","interactions":[],"lastModifiedDate":"2016-10-06T15:44:46","indexId":"ofr021","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-1","title":"Visualization of drifting buoy deployments on upper Detroit River within the Great Lakes Waterway from August 28-30, 2001","docAbstract":"Detroit River is a connecting channel on the Great Lakes waterway that joins Lake St. Clair with Lake Erie. The river forms part of the international boundary between the United States and Canada in southeastern Michigan and southern Ontario. Drifting buoys were deployed on Detroit River to help investigate flow characteristics of four selected reaches as part of a source water assessment study of public water intakes. The drifting buoys contained global positioning system (GPS) receivers to help track their movements following their deployment. In some deployments, buoys were released across a transect at approximately uniform intervals to better understand flow patterns. In other deployments, buoys were released in clusters to investigate turbulent dispersion characteristics. Computer animations of buoy movements, which can be viewed through the Internet, are developed to help visualize the results of the buoy deployments.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Lansing, MI","doi":"10.3133/ofr021","usgsCitation":"Holtschlag, D.J., and Aichele, S.A., 2002, Visualization of drifting buoy deployments on upper Detroit River within the Great Lakes Waterway from August 28-30, 2001: U.S. Geological Survey Open-File Report 2002-1, HTML Document, https://doi.org/10.3133/ofr021.","productDescription":"HTML Document","costCenters":[{"id":382,"text":"Michigan Water Science Center","active":true,"usgs":true}],"links":[{"id":176042,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4393,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/ofr02001","linkFileType":{"id":5,"text":"html"}}],"country":"Canada, United States","otherGeospatial":"Detroit River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -83.05801391601561,\n 42.31527386983822\n ],\n [\n -83.05801391601561,\n 42.33186847048141\n ],\n [\n -83.0320930480957,\n 42.33186847048141\n ],\n [\n -83.0320930480957,\n 42.31527386983822\n ],\n [\n -83.05801391601561,\n 42.31527386983822\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ee4b07f02db5fdb45","contributors":{"authors":[{"text":"Holtschlag, David J. 0000-0001-5185-4928 dholtschlag@usgs.gov","orcid":"https://orcid.org/0000-0001-5185-4928","contributorId":5447,"corporation":false,"usgs":true,"family":"Holtschlag","given":"David","email":"dholtschlag@usgs.gov","middleInitial":"J.","affiliations":[{"id":382,"text":"Michigan Water Science Center","active":true,"usgs":true}],"preferred":true,"id":241908,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aichele, Steve A.","contributorId":67151,"corporation":false,"usgs":true,"family":"Aichele","given":"Steve","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":241909,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":50594,"text":"ofr027 - 2002 - Lithogeochemical character of near-surface bedrock in the New England coastal basins","interactions":[],"lastModifiedDate":"2022-08-24T21:00:28.642033","indexId":"ofr027","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-7","title":"Lithogeochemical character of near-surface bedrock in the New England coastal basins","docAbstract":"This geographic information system (GIS) data layer shows the generalized lithologic and geochemical, termed lithogeochemical, character of near-surface bedrock in the New England Coastal Basin (NECB) study area of the U.S. Geological Survey's National Water Quality Assessment (NAWQA) Program. The area encompasses 23,000 square miles in western and central Maine, eastern Massachusetts, most of Rhode Island, eastern New Hampshire and a small part of eastern Connecticut. The NECB study area includes the Kennebec, Androscoggin, Saco, Merrimack, Charles, and Blackstone River Basins, as well as all of Cape Cod. \r\n\r\n \r\n\r\nBedrock units in the NECB study area are classified into lithogeochemical units based on the relative reactivity of their constituent minerals to dissolution and the presence of carbonate or sulfide minerals. The 38 lithogeochemical units are generalized into 7 major groups: (1) carbonate-bearing metasedimentary rocks; (2) primarily noncalcareous, clastic sedimentary rocks with restricted deposition in discrete fault-bounded sedimentary basins of Mississipian or younger age; (3) primarily noncalcareous, clastic sedimentary rocks at or above biotite-grade of regional metamorphism; (4) mafic igneous rocks and their metamorphic equivalents; (5) ultramafic rocks; (6) felsic igneous rocks and their metamorphic equivalents; and (7) unconsolidated and poorly consolidated sediments.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr027","usgsCitation":"Robinson, G.R., Ayotte, J., Montgomery, D.L., and DeSimone, L., 2002, Lithogeochemical character of near-surface bedrock in the New England coastal basins: U.S. Geological Survey Open-File Report 2002-7, HTML Document, https://doi.org/10.3133/ofr027.","productDescription":"HTML Document","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"links":[{"id":176160,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":405552,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_51488.htm","linkFileType":{"id":5,"text":"html"}},{"id":4394,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/ofr02-007/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island","otherGeospatial":"New England Coastal basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -68.75244140625,\n 44.41808794374846\n ],\n [\n -68.0712890625,\n 45.213003555993964\n ],\n [\n -68.00537109375,\n 45.874712248904764\n ],\n [\n -67.87353515625,\n 46.118941506107056\n ],\n [\n -67.91748046874999,\n 46.46813299215554\n ],\n [\n -68.31298828125,\n 46.604167162931844\n ],\n [\n -68.9501953125,\n 47.08508535995386\n ],\n [\n -69.10400390625,\n 47.21956811231547\n ],\n [\n -69.3896484375,\n 47.249406957888446\n ],\n [\n -70.2685546875,\n 46.164614496897094\n ],\n [\n -70.7080078125,\n 45.3521452458518\n ],\n [\n -71.279296875,\n 45.058001435398275\n ],\n [\n -71.43310546875,\n 44.43377984606822\n ],\n [\n -71.6748046875,\n 43.866218006556394\n ],\n [\n -71.806640625,\n 43.08493742707592\n ],\n [\n -71.89453125,\n 42.56926437219384\n ],\n [\n -71.91650390625,\n 42.00032514831621\n ],\n [\n -71.82861328125,\n 41.52502957323801\n ],\n [\n -71.806640625,\n 41.376808565702355\n ],\n [\n -71.30126953124999,\n 41.29431726315258\n ],\n [\n -69.873046875,\n 41.21172151054787\n ],\n [\n -69.93896484375,\n 42.13082130188811\n ],\n [\n -70.37841796875,\n 42.52069952914966\n ],\n [\n -70.46630859375,\n 43.02071359427862\n ],\n [\n -69.19189453125,\n 44.02442151965934\n ],\n [\n -68.75244140625,\n 44.41808794374846\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b13e4b07f02db6a369b","contributors":{"authors":[{"text":"Robinson, Gilpin R. Jr. grobinso@usgs.gov","contributorId":3083,"corporation":false,"usgs":true,"family":"Robinson","given":"Gilpin","suffix":"Jr.","email":"grobinso@usgs.gov","middleInitial":"R.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":241911,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ayotte, Joseph D. jayotte@usgs.gov","contributorId":1802,"corporation":false,"usgs":true,"family":"Ayotte","given":"Joseph D.","email":"jayotte@usgs.gov","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":false,"id":241910,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Montgomery, Denise L.","contributorId":92698,"corporation":false,"usgs":true,"family":"Montgomery","given":"Denise","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":241913,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"DeSimone, Leslie A. 0000-0003-0774-9607 ldesimon@usgs.gov","orcid":"https://orcid.org/0000-0003-0774-9607","contributorId":176711,"corporation":false,"usgs":true,"family":"DeSimone","given":"Leslie A.","email":"ldesimon@usgs.gov","affiliations":[{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":false,"id":241912,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":50597,"text":"ofr200215 - 2002 - Beowulf Distributed Processing and the United States Geological Survey","interactions":[],"lastModifiedDate":"2012-04-15T17:28:14","indexId":"ofr200215","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-15","title":"Beowulf Distributed Processing and the United States Geological Survey","docAbstract":"Introduction\n\nIn recent years, the United States Geological Survey's (USGS) National Mapping Discipline (NMD) has expanded its scientific and research activities. Work is being conducted in areas such as emergency response research, scientific visualization, urban prediction, and other simulation activities. Custom-produced digital data have become essential for these types of activities. High-resolution, remotely sensed datasets are also seeing increased use.\n\nUnfortunately, the NMD is also finding that it lacks the resources required to perform some of these activities. Many of these projects require large amounts of computer processing resources. Complex urban-prediction simulations, for example, involve large amounts of processor-intensive calculations on large amounts of input data.\n\nThis project was undertaken to learn and understand the concepts of distributed processing. Experience was needed in developing these types of applications. The idea was that this type of technology could significantly aid the needs of the NMD scientific and research programs. Porting a numerically intensive application currently being used by an NMD science program to run in a distributed fashion would demonstrate the usefulness of this technology.\n\nThere are several benefits that this type of technology can bring to the USGS's research programs. Projects can be performed that were previously impossible due to a lack of computing resources. Other projects can be performed on a larger scale than previously possible. For example, distributed processing can enable urban dynamics research to perform simulations on larger areas without making huge sacrifices in resolution. The processing can also be done in a more reasonable amount of time than with traditional single-threaded methods (a scaled version of Chester County, Pennsylvania, took about fifty days to finish its first calibration phase with a single-threaded program).\n\nThis paper has several goals regarding distributed processing technology. It will describe the benefits of the technology. Real data about a distributed application will be presented as an example of the benefits that this technology can bring to USGS scientific programs. Finally, some of the issues with distributed processing that relate to USGS work will be discussed.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr200215","usgsCitation":"Maddox, B.G., 2002, Beowulf Distributed Processing and the United States Geological Survey: U.S. Geological Survey Open-File Report 2002-15, 16 p., https://doi.org/10.3133/ofr200215.","productDescription":"16 p.","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":176163,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9823,"rank":300,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/0015/","size":"315","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a53e4b07f02db62b433","contributors":{"authors":[{"text":"Maddox, Brian G.","contributorId":57140,"corporation":false,"usgs":true,"family":"Maddox","given":"Brian","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":241917,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":50609,"text":"ofr0288 - 2002 - Streamflow gain/loss in the Republican River Basin, Nebraska, October 1998","interactions":[],"lastModifiedDate":"2012-02-02T00:10:04","indexId":"ofr0288","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-88","title":"Streamflow gain/loss in the Republican River Basin, Nebraska, October 1998","docAbstract":"This arc and point data set contains streamflow-measurement sites and reaches indicating streamflow gain or loss under base-flow conditions along the Republican River and tributaries in Nebraska during October 25 to 28, 1998 (Boohar, 2000). The streamflow measurements were made to obtain data on ground-water/surface-water interaction. Flow was observed visually to be zero, was measured, or was estimated at 374 sites. The measurements were made on the main stem of the Republican River and all flowing tributaries that enter the Republican River between Swanson and Harlan County Reservoirs in the Nebraska part of the Republican River Basin. Tributaries were followed upstream until the first road crossing where zero flow was encountered. Measurements also included estimates of average wastewater discharge during the period when the flow measurements were made, based upon data obtained from towns having measureable wastewater discharge. For selected streams, points of zero flow upstream of the first zero flow site also were checked.\r\n\r\nStreamflow gain or loss for each stream reach was calculated by subtracting the streamflow values measured at the upstream end of the reach and values for contributing tributaries from the downstream value. The data obtained reflected base-flow conditions suitable for estimating streamflow gains and losses for stream reaches between sites. However, due to fluctuations in streamflow on the main stem of the Republican River above Swanson Reservoir during the measurement period, flow measurements on the main stem could not be used for calculating reach gains and losses. Flows measured on tributaries to the Republican River above Swanson Reservoir were of suitable quality to use for streamflow gain/loss calculations. Flows on Sappa Creek did not reflect base-flow conditions and thus were not suitable for investigating ground-water/surface-water interaction.\r\n\r\nThis digital data set was created by manually plotting locations of streamflow measurements. These points were used to designate stream-reach segments to calculate gain/loss per river mile Reach segments were created by manually splitting the lines from a 1:250,000 hydrography data set (Soenksen and others, 1999) at every location where the streams were measured. Each stream-reach segment between streamflow-measurement sites was assigned a unique reach number. All other lines in the hydrography data set without reach numbers were omitted.\r\n\r\nThis data set was created to archive the calculated streamflow gains and losses of streams in the Republican River Basin, Nebraska, in October 1998, and make the data available for use with geographic information systems (GIS). \r\n\r\nIf measurement sites are used separately from reaches, the maximum scale of 1:100,000 should not be exceeded. When used in conjunction with the reach segments, the maximum scale should not exceed 1:250,000.","language":"ENGLISH","doi":"10.3133/ofr0288","usgsCitation":"Johnson, M.R., Stanton, J.S., Cornwall, J.F., and Landon, M.K., 2002, Streamflow gain/loss in the Republican River Basin, Nebraska, October 1998: U.S. Geological Survey Open-File Report 2002-88, NA, https://doi.org/10.3133/ofr0288.","productDescription":"NA","costCenters":[],"links":[{"id":162114,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4111,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/ofr02-088/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6ae44b","contributors":{"authors":[{"text":"Johnson, Michalea R. 0000-0001-6133-0247","orcid":"https://orcid.org/0000-0001-6133-0247","contributorId":10285,"corporation":false,"usgs":true,"family":"Johnson","given":"Michalea","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":241926,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stanton, Jennifer S. 0000-0002-2520-753X jstanton@usgs.gov","orcid":"https://orcid.org/0000-0002-2520-753X","contributorId":830,"corporation":false,"usgs":true,"family":"Stanton","given":"Jennifer","email":"jstanton@usgs.gov","middleInitial":"S.","affiliations":[{"id":464,"text":"Nebraska Water Science Center","active":true,"usgs":true},{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":241925,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cornwall, James F.","contributorId":74067,"corporation":false,"usgs":true,"family":"Cornwall","given":"James","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":241927,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Landon, Matthew K. 0000-0002-5766-0494 landon@usgs.gov","orcid":"https://orcid.org/0000-0002-5766-0494","contributorId":392,"corporation":false,"usgs":true,"family":"Landon","given":"Matthew","email":"landon@usgs.gov","middleInitial":"K.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":241924,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":50612,"text":"ofr02106 - 2002 - User's guide to Model Viewer, a program for three-dimensional visualization of ground-water model results","interactions":[],"lastModifiedDate":"2020-02-19T19:25:31","indexId":"ofr02106","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-106","title":"User's guide to Model Viewer, a program for three-dimensional visualization of ground-water model results","docAbstract":"Model Viewer is a computer program that displays the results of three-dimensional groundwater models. Scalar data (such as hydraulic head or solute concentration) may be displayed as a solid or a set of isosurfaces, using a red-to-blue color spectrum to represent a range of scalar values. Vector data (such as velocity or specific discharge) are represented by lines oriented to the vector direction and scaled to the vector magnitude. Model Viewer can also display pathlines, cells or nodes that represent model features such as streams and wells, and auxiliary graphic objects such as grid lines and coordinate axes. Users may crop the model grid in different orientations to examine the interior structure of the data. For transient simulations, Model Viewer can animate the time evolution of the simulated quantities. The current version (1.0) of Model Viewer runs on Microsoft Windows 95, 98, NT and 2000 operating systems, and supports the following models: MODFLOW-2000, MODFLOW-2000 with the Ground-Water Transport Process, MODFLOW-96, MOC3D (Version 3.5), MODPATH, MT3DMS, and SUTRA (Version 2D3D.1). Model Viewer is designed to directly read input and output files from these models, thus minimizing the need for additional postprocessing. This report provides an overview of Model Viewer. Complete instructions on how to use the software are provided in the on-line help pages.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02106","usgsCitation":"Hsieh, P.A., and Winston, R.B., 2002, User's guide to Model Viewer, a program for three-dimensional visualization of ground-water model results: U.S. Geological Survey Open-File Report 2002-106, 23 p., https://doi.org/10.3133/ofr02106.","productDescription":"23 p.","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":438879,"rank":101,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P13KMWEV","text":"USGS data release","linkHelpText":"Model Viewer 1.8"},{"id":438878,"rank":101,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P9UHN4YB","text":"USGS data release","linkHelpText":"Model Viewer for MODFLOW 6 Graphical User Interface 1.0.0 Software Release"},{"id":162117,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4114,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/ofr02-106/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a16e4b07f02db603e67","contributors":{"authors":[{"text":"Hsieh, Paul A. 0000-0003-4873-4874 pahsieh@usgs.gov","orcid":"https://orcid.org/0000-0003-4873-4874","contributorId":1634,"corporation":false,"usgs":true,"family":"Hsieh","given":"Paul","email":"pahsieh@usgs.gov","middleInitial":"A.","affiliations":[{"id":39113,"text":"WMA - Office of Quality Assurance","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":241932,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Winston, Richard B. 0000-0002-6287-8834 rbwinst@usgs.gov","orcid":"https://orcid.org/0000-0002-6287-8834","contributorId":3567,"corporation":false,"usgs":true,"family":"Winston","given":"Richard","email":"rbwinst@usgs.gov","middleInitial":"B.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true}],"preferred":true,"id":241933,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":50618,"text":"ofr2002122 - 2002 - Visualization of Flow Alternatives, Lower Missouri River","interactions":[],"lastModifiedDate":"2016-12-05T11:52:45","indexId":"ofr2002122","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-122","title":"Visualization of Flow Alternatives, Lower Missouri River","docAbstract":"Background\r\n\r\nThe U.S. Army Corps of Engineers (COE) 'Missouri River Master Water Control Manual' (Master Manual) review has resulted in consideration of many flow alternatives for managing the water in the river (COE, 2001; 1998a). The purpose of this report is to present flow-management alternative model results in a way that can be easily visualized and understood. This report was updated in October 2001 to focus on the specific flow-management alternatives presented by the COE in the 'Master Manual Revised Draft Environmental Impact Statement' (RDEIS; COE, 2001). The original version (February 2000) is available by clicking here.\r\n\r\nThe COE, U.S. Fish and Wildlife Service (FWS), Missouri River states, and Missouri River basin tribes have been participating in discussions concerning water management of the Missouri River mainstem reservoir system (MRMRS), the Missouri River Bank Stabilization and Navigation Project, and the Kansas River reservoir system since 1986. These discussions include general input to the revision of the Master Manual as well as formal consultation under Section 7 of the Endangered Species Act. In 2000, the FWS issued a Biological Opinion that prescribed changes to reservoir management on the Missouri River that were believed to be necessary to preclude jeopardy to three endangered species, the pallid sturgeon, piping plover, and interior least tern (USFWS, 2000).\r\n\r\nThe combined Missouri River system is large and complex, including many reservoirs, control structures, and free-flowing reaches extending over a broad region. The ability to assess future impacts of altered management scenarios necessarily involves complex, computational models that attempt to integrate physical, chemical, biological, and economic effects. Graphical visualization of the model output is intended to improve understanding of the differences among flow-management alternatives.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr2002122","usgsCitation":"Jacobson, R.B., and Heuser, J., 2002, Visualization of Flow Alternatives, Lower Missouri River: U.S. Geological Survey Open-File Report 2002-122, HTML Document, https://doi.org/10.3133/ofr2002122.","productDescription":"HTML Document","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":162209,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4119,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://www.cerc.usgs.gov/rss/visualize/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Colorado, Iowa, Kansas, Missouri, Montana, Nebraska, North Dakota, South Dakota, Wyoming","otherGeospatial":"Missouri River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -90.02197265625,\n 38.75408327579141\n ],\n [\n -97.998046875,\n 47.27922900257082\n ],\n [\n -104.150390625,\n 49.009050809382046\n ],\n [\n -108.544921875,\n 50.035973672195496\n ],\n [\n -115.6201171875,\n 49.63917719651036\n ],\n [\n -116.19140625,\n 47.338822694822\n ],\n [\n -118.16894531249999,\n 43.45291889355465\n ],\n [\n -105.9521484375,\n 38.16911413556086\n ],\n [\n -101.6015625,\n 37.405073750176925\n ],\n [\n -89.82421875,\n 38.238180119798635\n ],\n [\n -90.02197265625,\n 38.75408327579141\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ee4b07f02db5fdb5a","contributors":{"authors":[{"text":"Jacobson, Robert B. 0000-0002-8368-2064 rjacobson@usgs.gov","orcid":"https://orcid.org/0000-0002-8368-2064","contributorId":1289,"corporation":false,"usgs":true,"family":"Jacobson","given":"Robert","email":"rjacobson@usgs.gov","middleInitial":"B.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":241941,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Heuser, Jeanne","contributorId":55873,"corporation":false,"usgs":true,"family":"Heuser","given":"Jeanne","email":"","affiliations":[],"preferred":false,"id":241942,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":50623,"text":"ofr02146 - 2002 - Summary of suspended-sediment concentration data, San Francisco Bay, California, water year 2000","interactions":[],"lastModifiedDate":"2016-07-26T16:36:49","indexId":"ofr02146","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-146","title":"Summary of suspended-sediment concentration data, San Francisco Bay, California, water year 2000","docAbstract":"Suspended-sediment concentration data were collected in San Francisco Bay during water year 2000 (October 1, 1999?September 30, 2000). Optical backscatterance sensors and water samples were used to monitor suspended sediment at one site in Suisun Bay, three sites in San Pablo Bay, two sites in Central San Francisco Bay, and three sites in South San Francisco Bay. Sensors were positioned at two depths at most sites. Water samples were collected periodically and were analyzed for concentrations of suspended sediment. The results of the analyses were used to calibrate the electrical output of the optical backscatterance sensors. This report presents the data-collection methods and summarizes the suspended-sediment concentration data collected from October 1999 through September 2000. Calibration plots and plots of edited data for each sensor also are presented.
","language":"ENGLISH","doi":"10.3133/ofr02146","usgsCitation":"Buchanan, P.A., and Ganju, N., 2002, Summary of suspended-sediment concentration data, San Francisco Bay, California, water year 2000: U.S. Geological Survey Open-File Report 2002-146, 42 p., https://doi.org/10.3133/ofr02146.","productDescription":"42 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":162291,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4120,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/ofr02146/ofr02146.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b02e4b07f02db6989c8","contributors":{"authors":[{"text":"Buchanan, Paul A. 0000-0002-4796-4734 buchanan@usgs.gov","orcid":"https://orcid.org/0000-0002-4796-4734","contributorId":1018,"corporation":false,"usgs":true,"family":"Buchanan","given":"Paul","email":"buchanan@usgs.gov","middleInitial":"A.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":241951,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ganju, Neil K. 0000-0002-1096-0465","orcid":"https://orcid.org/0000-0002-1096-0465","contributorId":93543,"corporation":false,"usgs":true,"family":"Ganju","given":"Neil K.","affiliations":[],"preferred":false,"id":241952,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":50635,"text":"ofr02186 - 2002 - Water quality monitoring of Sweetwater and Loveland reservoirs--Phase one results 1998-1999","interactions":[],"lastModifiedDate":"2012-02-02T00:10:25","indexId":"ofr02186","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-186","title":"Water quality monitoring of Sweetwater and Loveland reservoirs--Phase one results 1998-1999","docAbstract":"In 1998, the U.S. Geological Survey began a study to assess the overall health of the watershed feeding the Sweetwater Reservoir in southern San Diego County, California. The study focussed on monitoring for organic chemical contamination and the effects of construction and operation of State Route 125 on water quality. Three environmental compartments (air, water, and bed sediments) are being sampled regularly for chemical contaminants, including volatile organic compounds, polynuclear aromatic hydrocarbons, polychlorinated biphenyls, pesticides, and major and trace elements. The study is divided into two phases. Phase I sampling is designed to establish baseline conditions for target compounds in terms of detection frequency and concentration in air, water, and bed sediments. Phase II sampling will continue at the established monitoring sites during and after construction of State Route 125 to assess chemical impact on water quality in the reservoir resulting from land-use changes and development in the watershed. This report describes the study design, the sampling and analytical methods, and presents the data results for the first year of the study, September 1998 to September 1999.","language":"ENGLISH","doi":"10.3133/ofr02186","usgsCitation":"Majewski, M.S., Sidhu, J.S., and Mendez, G.O., 2002, Water quality monitoring of Sweetwater and Loveland reservoirs--Phase one results 1998-1999: U.S. Geological Survey Open-File Report 2002-186, 133 p., 14 tables, https://doi.org/10.3133/ofr02186.","productDescription":"133 p., 14 tables","costCenters":[],"links":[{"id":4128,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/ofr02186/ ","linkFileType":{"id":5,"text":"html"}},{"id":170033,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a48e4b07f02db6234a5","contributors":{"authors":[{"text":"Majewski, Michael S. majewski@usgs.gov","contributorId":440,"corporation":false,"usgs":true,"family":"Majewski","given":"Michael","email":"majewski@usgs.gov","middleInitial":"S.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":241985,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sidhu, Jagdeep S.","contributorId":27526,"corporation":false,"usgs":true,"family":"Sidhu","given":"Jagdeep","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":241987,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mendez, Gregory O. 0000-0002-9955-3726 gomendez@usgs.gov","orcid":"https://orcid.org/0000-0002-9955-3726","contributorId":1489,"corporation":false,"usgs":true,"family":"Mendez","given":"Gregory","email":"gomendez@usgs.gov","middleInitial":"O.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":241986,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":50638,"text":"ofr02197 - 2002 - Documentation of spreadsheets for the analysis of aquifer-test and slug-test data","interactions":[],"lastModifiedDate":"2025-12-03T14:15:36.026866","indexId":"ofr02197","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-197","title":"Documentation of spreadsheets for the analysis of aquifer-test and slug-test data","docAbstract":"Several spreadsheets have been developed for the analysis of aquifer-test and slug-test data. Each spreadsheet incorporates analytical solution(s) of the partial differential equation for ground-water flow to a well for a specific type of condition or aquifer. The derivations of the analytical solutions were previously published. Thus, this report abbreviates the theoretical discussion, but includes practical information about each method and the important assumptions for the applications of each method. These spreadsheets were written in Microsoft Excel 9.0 (use of trade names does not constitute endorsement by the USGS). Storage properties should not be estimated with many of the spreadsheets because most are for analyzing single-well tests. Estimation of storage properties from single-well tests is generally discouraged because single-well tests are affected by wellbore storage and by well construction. These non-ideal effects frequently cause estimates of storage to be erroneous by orders of magnitude. Additionally, single-well tests are not sensitive to aquifer-storage properties. Single-well tests include all slug tests (Bouwer and Rice Method, Cooper, Bredehoeft, Papadopulos Method, and van der Kamp Method), the Cooper-Jacob straight-line Method, Theis recovery-data analysis, Jacob-Lohman method for flowing wells in a confined aquifer, and the step-drawdown test. Multi-well test spreadsheets included in this report are; Hantush-Jacob Leaky Aquifer Method and Distance-Drawdown Methods. The distance-drawdown method is an equilibrium or steady-state method, thus storage cannot be estimated.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02197","usgsCitation":"Halford, K.J., and Kuniansky, E.L., 2002, Documentation of spreadsheets for the analysis of aquifer-test and slug-test data (Version 1.2): U.S. Geological Survey Open-File Report 2002-197, 51 p., https://doi.org/10.3133/ofr02197.","productDescription":"51 p.","costCenters":[],"links":[{"id":170113,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4130,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/ofr02197/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a61e4b07f02db636171","contributors":{"authors":[{"text":"Halford, Keith J. 0000-0002-7322-1846 khalford@usgs.gov","orcid":"https://orcid.org/0000-0002-7322-1846","contributorId":1374,"corporation":false,"usgs":true,"family":"Halford","given":"Keith","email":"khalford@usgs.gov","middleInitial":"J.","affiliations":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"preferred":true,"id":241995,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kuniansky, Eve L. 0000-0002-5581-0225 elkunian@usgs.gov","orcid":"https://orcid.org/0000-0002-5581-0225","contributorId":932,"corporation":false,"usgs":true,"family":"Kuniansky","given":"Eve","email":"elkunian@usgs.gov","middleInitial":"L.","affiliations":[{"id":5064,"text":"Southeast Regional Director's Office","active":true,"usgs":true},{"id":509,"text":"Office of the Associate Director for Water","active":true,"usgs":true}],"preferred":true,"id":241994,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":50648,"text":"ofr02231 - 2002 - Supporting data for hydrologic studies in San Francisco Bay, California: Meteorological measurements at the Port of Redwood City during 1998-2001","interactions":[],"lastModifiedDate":"2020-02-18T19:49:24","indexId":"ofr02231","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-231","title":"Supporting data for hydrologic studies in San Francisco Bay, California: Meteorological measurements at the Port of Redwood City during 1998-2001","docAbstract":"Meteorological data were collected during 1998-2001 at the Port of Redwood City, California, to support hydrologic studies in South San Francisco Bay. The measured meteorological variables were air temperature, atmospheric pressure, quantum flux (insolation), and four parameters of wind speed and direction: scalar mean horizontal wind speed, (vector) resultant horizontal wind speed, resultant wind direction, and standard deviation of the wind direction. Hourly mean values based on measurements at five-minute intervals were logged at the site. Daily mean values were computed for temperature, infolation, pressure, and scalar wind speed. Daily mean values for 1998-2001 are described in this report, and a short record of hourly mean values is compared to data from another near-by station. Data (hourly and daily mean) from the entire period of record (starting in April 1992) and reports describing data prior to 1998 are provided.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02231","usgsCitation":"Schemel, L.E., 2002, Supporting data for hydrologic studies in San Francisco Bay, California: Meteorological measurements at the Port of Redwood City during 1998-2001: U.S. Geological Survey Open-File Report 2002-231, 37 p., https://doi.org/10.3133/ofr02231.","productDescription":"37 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":169892,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4133,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/ofr02231/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"California","otherGeospatial":"San Francisco Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -123.00292968749999,\n 37.3002752813443\n ],\n [\n -121.6845703125,\n 37.3002752813443\n ],\n [\n -121.6845703125,\n 38.39333888832238\n ],\n [\n -123.00292968749999,\n 38.39333888832238\n ],\n [\n -123.00292968749999,\n 37.3002752813443\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b01e4b07f02db69848e","contributors":{"authors":[{"text":"Schemel, Laurence E. lschemel@usgs.gov","contributorId":4085,"corporation":false,"usgs":true,"family":"Schemel","given":"Laurence","email":"lschemel@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":242009,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":50655,"text":"ofr02242 - 2002 - Preliminary code, input, and output for the Deep Percolation and Irrigation Requirement Model (DPIRM) for simulating rates of ground-water recharge and pumpage for irrigation in part of the Republican River Basin, Nebraska, Kansas, and Colorado","interactions":[],"lastModifiedDate":"2012-02-02T00:10:25","indexId":"ofr02242","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-242","title":"Preliminary code, input, and output for the Deep Percolation and Irrigation Requirement Model (DPIRM) for simulating rates of ground-water recharge and pumpage for irrigation in part of the Republican River Basin, Nebraska, Kansas, and Colorado","language":"ENGLISH","doi":"10.3133/ofr02242","usgsCitation":"Landon, M.K., and Cornwall, J., 2002, Preliminary code, input, and output for the Deep Percolation and Irrigation Requirement Model (DPIRM) for simulating rates of ground-water recharge and pumpage for irrigation in part of the Republican River Basin, Nebraska, Kansas, and Colorado: U.S. Geological Survey Open-File Report 2002-242, digital format only, available upon request from Nebraska District office, https://doi.org/10.3133/ofr02242.","productDescription":"digital format only, available upon request from Nebraska District office","costCenters":[],"links":[{"id":169955,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c71a","contributors":{"authors":[{"text":"Landon, Matthew K. 0000-0002-5766-0494 landon@usgs.gov","orcid":"https://orcid.org/0000-0002-5766-0494","contributorId":392,"corporation":false,"usgs":true,"family":"Landon","given":"Matthew","email":"landon@usgs.gov","middleInitial":"K.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":242014,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cornwall, J.F.","contributorId":80961,"corporation":false,"usgs":true,"family":"Cornwall","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":242015,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":50656,"text":"ofr02249 - 2002 - Fifty-year flood-inundation maps for Choloma, Honduras","interactions":[],"lastModifiedDate":"2025-08-18T14:37:37.224514","indexId":"ofr02249","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-249","title":"Fifty-year flood-inundation maps for Choloma, Honduras","docAbstract":"After the devastating floods caused by Hurricane Mitch in 1998, maps of the areas and depths of the 50-year-flood inundation at 15 municipalities in Honduras were prepared as a tool for agencies involved in reconstruction and planning. This report, which is one in a series of 15, presents maps of areas in the municipality of Choloma that would be inundated by a 50-year flood of Rio Choloma. Geographic Information System (GIS) coverages of the flood inundation are available on a computer in the municipality of Choloma as part of the in the Municipal GIS project and on the Internet at the Flood Hazard Mapping Web page (http://mitchnts1.cr.usgs.gov/projects/floodhazard.html). These coverages allow users to view the flood inundation in much more detail than is possible using the maps in this report.\r\n\r\nWater-surface elevations for a 50-year-flood on Rio Choloma at Choloma were determined using HEC-RAS, a one-dimensional, steady-flow, step-backwater computer program. The channel and floodplain cross sections used in HEC-RAS were developed from an airborne light detection and ranging (LIDAR) topographic survey of the area. There are no nearby long-term stream-gaging stations on Rio Choloma; therefore, the 50-year-flood discharge for Rio Choloma, 370 cubic meters per second, was estimated using a regression equation that relates the 50-year-flood discharge to drainage area and mean annual precipitation. The drainage area and mean annual precipitation estimated for Rio Choloma at Choloma are 89.5 square kilometers and 2,164 millimeters, respectively.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02249","usgsCitation":"Mastin, M.C., and Olsen, T.D., 2002, Fifty-year flood-inundation maps for Choloma, Honduras: U.S. Geological Survey Open-File Report 2002-249, 9 p., https://doi.org/10.3133/ofr02249.","productDescription":"9 p.","costCenters":[],"links":[{"id":4135,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/ofr02249/index.html","linkFileType":{"id":5,"text":"html"}},{"id":169956,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"Honduras","city":"Choloma","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -89.43251127996213,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 16.43006388749069\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fbe4b07f02db5f4936","contributors":{"authors":[{"text":"Mastin, Mark C. 0000-0003-4018-7861 mcmastin@usgs.gov","orcid":"https://orcid.org/0000-0003-4018-7861","contributorId":1652,"corporation":false,"usgs":true,"family":"Mastin","given":"Mark","email":"mcmastin@usgs.gov","middleInitial":"C.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":242016,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Olsen, T. D.","contributorId":41463,"corporation":false,"usgs":true,"family":"Olsen","given":"T.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":242017,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":50657,"text":"ofr02251 - 2002 - Fifty-year flood-inundation maps for Comayagua, Hondura","interactions":[],"lastModifiedDate":"2025-08-18T14:56:58.174975","indexId":"ofr02251","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-251","title":"Fifty-year flood-inundation maps for Comayagua, Hondura","docAbstract":"After the devastating floods caused by Hurricane Mitch in 1998, maps of the areas and depths of the 50-year-flood inundation at 15 municipalities in Honduras were prepared as a tool for agencies involved in reconstruction and planning. This report, which is one in a series of 15, presents maps of areas in the municipality of Comayagua that would be inundated by 50-year floods on Rio Humuya and Rio Majada. Geographic Information System (GIS) coverages of the flood inundation are available on a computer in the municipality of Comayagua as part of the Municipal GIS project and on the Internet at the Flood Hazard Mapping Web page (http://mitchnts1.cr.usgs.gov/projects/floodhazard.html). These coverages allow users to view the flood inundation in much more detail than is possible using the maps in this report.\r\n\r\nWater-surface elevations for 50-year-floods on Rio Humuya and Rio Majada at Comayagua were estimated using HEC-RAS, a one-dimensional, steady-flow, step-backwater computer program. The channel and floodplain cross sections used in HEC-RAS were developed from an airborne light-detection-and-ranging (LIDAR) topographic survey of the area.\r\n\r\nThe 50-year-flood discharge for Rio Humuya at Comayagua, 1,400 cubic meters per second, was estimated using a regression equation that relates the 50-year-flood discharge to drainage area and mean annual precipitation. The reasonableness of the regression discharge was evaluated by comparing it with drainage-area-adjusted 50-year-flood discharges estimated for three long-term Rio Humuya stream-gaging stations. The drainage-area-adjusted 50-year-flood discharges estimated from the gage records ranged from 946 to 1,365 cubic meters per second. Because the regression equation discharge agrees closely with the high end of the range of discharges estimated from the gaging-station records, it was used for the hydraulic modeling to ensure that the resulting 50-year-flood water-surface elevations would not be underestimated.\r\n\r\nThe 50-year-flood discharge for Rio Majada at Comayagua (230 cubic meters per second) was estimated using the regression equation because there are no long-term gaging-stations on this river from which to estimate the discharge.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02251","usgsCitation":"Kresch, D.L., Mastin, M.C., and Olsen, T.D., 2002, Fifty-year flood-inundation maps for Comayagua, Hondura: U.S. Geological Survey Open-File Report 2002-251, 11 p., https://doi.org/10.3133/ofr02251.","productDescription":"11 p.","costCenters":[],"links":[{"id":4141,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/ofr02251/index.html","linkFileType":{"id":5,"text":"html"}},{"id":170182,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"Hondura","city":"Comayagua","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -89.43251127996213,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 16.43006388749069\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fbe4b07f02db5f489a","contributors":{"authors":[{"text":"Kresch, David L.","contributorId":46084,"corporation":false,"usgs":true,"family":"Kresch","given":"David","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":242020,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mastin, Mark C. 0000-0003-4018-7861 mcmastin@usgs.gov","orcid":"https://orcid.org/0000-0003-4018-7861","contributorId":1652,"corporation":false,"usgs":true,"family":"Mastin","given":"Mark","email":"mcmastin@usgs.gov","middleInitial":"C.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":242018,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Olsen, T. D.","contributorId":41463,"corporation":false,"usgs":true,"family":"Olsen","given":"T.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":242019,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":50658,"text":"ofr02252 - 2002 - Fifty-year flood-inundation maps for El Progreso, Honduras","interactions":[],"lastModifiedDate":"2025-08-18T14:04:19.031723","indexId":"ofr02252","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-252","title":"Fifty-year flood-inundation maps for El Progreso, Honduras","docAbstract":"After the devastating floods caused by Hurricane Mitch in 1998, maps of the areas and depths of the 50-year-flood inundation at 15 municipalities in Honduras were prepared as a tool for agencies involved in reconstruction and planning. This report, which is one in a series of 15, presents maps of areas in the municipality of El Progreso that would be inundated by a 50-year flood of Rio Pelo. Geographic Information System (GIS) coverages of the flood inundation are available on a computer in the municipality of El Progreso as part of the Municipal GIS project and on the Internet at the Flood Hazard Mapping Web page (http://mitchnts1.cr.usgs.gov/projects/floodhazard.html). These coverages allow users to view the flood inundation in much more detail than is possible using the maps in this report.\r\n\r\nWater-surface elevations for a 50-year-flood on Rio Pelo at El Progreso were estimated using HEC-RAS, a one-dimensional, steady-flow, step-backwater computer program. The channel and floodplain cross sections used in HEC-RAS were developed from an airborne light-detection-and-ranging (LIDAR) topographic survey of the area. There are no nearby long-term stream-gaging stations on Rio Pelo; therefore, the 50-year-flood discharge for Rio Pelo, 235 cubic meters per second, was estimated using a regression equation that relates the 50-year-flood discharge to drainage area and mean annual precipitation. The drainage area and mean annual precipitation estimated for Rio Pelo at El Progreso are 47.4 square kilometers and 1,920 millimeters, respectively.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02252","usgsCitation":"Kresch, D.L., Mastin, M.C., and Olsen, T.D., 2002, Fifty-year flood-inundation maps for El Progreso, Honduras: U.S. Geological Survey Open-File Report 2002-252, 11 p., https://doi.org/10.3133/ofr02252.","productDescription":"11 p.","costCenters":[],"links":[{"id":4142,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/ofr02252/index.html","linkFileType":{"id":5,"text":"html"}},{"id":170183,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"Honduras","city":"El Progreso","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -89.43251127996213,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 16.43006388749069\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fbe4b07f02db5f48a0","contributors":{"authors":[{"text":"Kresch, David L.","contributorId":46084,"corporation":false,"usgs":true,"family":"Kresch","given":"David","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":242023,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mastin, Mark C. 0000-0003-4018-7861 mcmastin@usgs.gov","orcid":"https://orcid.org/0000-0003-4018-7861","contributorId":1652,"corporation":false,"usgs":true,"family":"Mastin","given":"Mark","email":"mcmastin@usgs.gov","middleInitial":"C.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":242021,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Olsen, T. D.","contributorId":41463,"corporation":false,"usgs":true,"family":"Olsen","given":"T.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":242022,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":50660,"text":"ofr02254 - 2002 - Fifty-year flood-inundation maps for La Ceiba, Honduras","interactions":[],"lastModifiedDate":"2025-08-18T14:30:22.291601","indexId":"ofr02254","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-254","title":"Fifty-year flood-inundation maps for La Ceiba, Honduras","docAbstract":"After the devastating floods caused by Hurricane Mitch in 1998, maps of the areas and depths of the 50-year-flood inundation at 15 municipalities in Honduras were prepared as a tool for agencies involved in reconstruction and planning. This report, which is one in a series of 15, presents maps of areas in the municipality of La Ceiba that would be inundated by a 50-year-flood of Rio Cangrejal. Geographic Information System (GIS) coverages of the flood inundation are available on a computer in the municipality of La Ceiba as part of the Municipal GIS project and on the Internet at the Flood Hazard Mapping Web page (http://mitchnts1.cr.usgs.gov/projects/floodhazard.html). These coverages allow users to view the flood inundation in much more detail than is possible using the maps in this report.\r\n\r\nWater-surface elevations for a 50-year-flood discharge of 1,030 cubic meters per second on Rio Cangrejal at La Ceiba were computed using HEC-RAS, a one-dimensional, steady-flow, step-backwater computer program. The channel and floodplain cross sections used in HEC-RAS were developed from an airborne light-detection-and-ranging (LIDAR) topographic survey of the area. There are no nearby long-term stream-gaging stations on Rio Cangrejal; therefore, the 50-year-flood discharge for Rio Cangrejal at La Ceiba was estimated using a regression equation that relates the 50-year-flood discharge to drainage area and mean annual precipitation. The drainage area and mean annual precipitation estimated for Rio Cangrejal at La Ceiba are 498 square kilometers and 2,306 millimeters, respectively.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02254","usgsCitation":"Kresch, D.L., Mastin, M.C., and Olsen, T.D., 2002, Fifty-year flood-inundation maps for La Ceiba, Honduras: U.S. Geological Survey Open-File Report 2002-254, 9 p., https://doi.org/10.3133/ofr02254.","productDescription":"9 p.","costCenters":[],"links":[{"id":4144,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/ofr02254/index.html","linkFileType":{"id":5,"text":"html"}},{"id":170257,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"Honduras","city":"La Ceiba","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -89.43251127996213,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 16.43006388749069\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fbe4b07f02db5f48b7","contributors":{"authors":[{"text":"Kresch, David L.","contributorId":46084,"corporation":false,"usgs":true,"family":"Kresch","given":"David","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":242028,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mastin, M. C.","contributorId":90782,"corporation":false,"usgs":true,"family":"Mastin","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":242029,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Olsen, T. D.","contributorId":41463,"corporation":false,"usgs":true,"family":"Olsen","given":"T.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":242027,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":50663,"text":"ofr02257 - 2002 - Fifty-year flood-inundation maps for Olanchito, Honduras","interactions":[],"lastModifiedDate":"2025-08-18T14:11:50.757498","indexId":"ofr02257","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-257","title":"Fifty-year flood-inundation maps for Olanchito, Honduras","docAbstract":"After the devastating floods caused by Hurricane Mitch in 1998, maps of the areas and depths of the 50-year-flood inundation at 15 municipalities in Honduras were prepared as a tool for agencies involved in reconstruction and planning. This report, which is one in a series of 15, presents maps of areas in the municipality of Olanchito that would be inundated by a 50-year-flood of Rio Uchapa. Geographic Information System (GIS) coverages of the flood inundation are available on a computer in the municipality of Olanchito as part of the Municipal GIS project and on the Internet at the Flood Hazard Mapping Web page (http://mitchnts1.cr.usgs.gov/projects/floodhazard.html). These coverages allow users to view the flood inundation in much more detail than is possible using the maps in this report.\r\n\r\nWater-surface elevations for a 50-year-flood discharge of 243 cubic meters per second on Rio Uchapa at Olanchito were estimated using HEC-RAS, a one-dimensional, steady-flow, step-backwater computer program. The channel and floodplain cross sections used in HEC-RAS were developed from an airborne light-detection-and-ranging (LIDAR) topographic survey of the area. There are no nearby long-term stream-gaging stations on Rio Uchapa; therefore, the 50-year-flood discharge for Rio Uchapa was estimated using a regression equation that relates the 50-year-flood discharge to drainage area and mean annual precipitation. The drainage area and mean annual precipitation estimated for Rio Uchapa at Olanchito are 97.1 square kilometers and 1,178 millimeters, respectively.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02257","usgsCitation":"Kresch, D.L., Mastin, M.C., and Olsen, T.D., 2002, Fifty-year flood-inundation maps for Olanchito, Honduras: U.S. Geological Survey Open-File Report 2002-257, 9 p., https://doi.org/10.3133/ofr02257.","productDescription":"9 p.","costCenters":[],"links":[{"id":4147,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/ofr02257/index.html","linkFileType":{"id":5,"text":"html"}},{"id":170325,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"Honduras","city":"Olanchito","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -89.43251127996213,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 16.43006388749069\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fbe4b07f02db5f4943","contributors":{"authors":[{"text":"Kresch, David L.","contributorId":46084,"corporation":false,"usgs":true,"family":"Kresch","given":"David","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":242036,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mastin, M. C.","contributorId":90782,"corporation":false,"usgs":true,"family":"Mastin","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":242037,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Olsen, T. D.","contributorId":41463,"corporation":false,"usgs":true,"family":"Olsen","given":"T.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":242035,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":50664,"text":"ofr02258 - 2002 - Fifty-Year Flood-Inundation Maps for Santa Rosa de Aguan, Honduras","interactions":[],"lastModifiedDate":"2025-08-18T14:09:06.742229","indexId":"ofr02258","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","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":"2002-258","title":"Fifty-Year Flood-Inundation Maps for Santa Rosa de Aguan, Honduras","docAbstract":"After the devastating floods caused by Hurricane Mitch in 1998, maps of the areas and depths of the 50-year-flood inundation at 15 municipalities in Honduras were prepared as a tool for agencies involved in reconstruction and planning. This report, which is one in a series of 15, presents maps of areas in the coastal municipality of Santa Rosa de Aguan that are prone to oceanic storm-surge flooding and wave action. The 50-year flood on the Rio Aguan (4,270 cubic meters per second), would inundate most of the area surveyed for this municipality and beyond. Therefore a detailed numerical hydraulic model was not developed for this municipality as it was for the others. The 50-year storm surge would likely produce higher water levels than the 50-year flood on the river during normal astronomical tides. The elevation of the 50-year storm surge was estimated to be 4.35 meters above normal sea level, based on hurricane probabilities and published storm-surge elevations associated with various hurricane categories. Flood-inundation maps, including areas of wave-action hazard and a color-shaded elevation map, were created from the available data and the estimated 50-year storm tide.\r\n\r\nGeographic Information System (GIS) coverages of the hazard areas are available on a computer in the municipality of Santa Rosa de Aguan as part of the Municipal GIS project and on the Internet at the Flood Hazard Mapping Data Web page (http://mitchnts1.cr.usgs.gov/projects/floodhazard.html). These coverages allow users to view the maps in much more detail than is possible using the maps in this report.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02258","usgsCitation":"Mastin, M.C., and Olsen, T.D., 2002, Fifty-Year Flood-Inundation Maps for Santa Rosa de Aguan, Honduras: U.S. Geological Survey Open-File Report 2002-258, 22 p., https://doi.org/10.3133/ofr02258.","productDescription":"22 p.","costCenters":[],"links":[{"id":4148,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/ofr02258/index.html","linkFileType":{"id":5,"text":"html"}},{"id":170392,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"Honduras","city":"Santa Rosa de Aguan","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -89.43251127996213,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 12.876909617568344\n ],\n [\n -82.7967072779427,\n 16.43006388749069\n ],\n [\n -89.43251127996213,\n 16.43006388749069\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fbe4b07f02db5f497f","contributors":{"authors":[{"text":"Mastin, Mark C. 0000-0003-4018-7861 mcmastin@usgs.gov","orcid":"https://orcid.org/0000-0003-4018-7861","contributorId":1652,"corporation":false,"usgs":true,"family":"Mastin","given":"Mark","email":"mcmastin@usgs.gov","middleInitial":"C.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":242038,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Olsen, T. D.","contributorId":41463,"corporation":false,"usgs":true,"family":"Olsen","given":"T.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":242039,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}