T. Messinger20140402Basin Centroid Points for Unregulated Streamgagages in and near West Virginia 1930-2011Geodatabase layers and gridsReston, VirginiaU.S. Geological Surveyhttps://water.usgs.gov/lookup/getspatial?sir2014-5061_streamflow_correlation_pointsU.S. Geological Survey20140402Correlations of Daily Flows at Streamgages in and near West Virginia, 1930-2011, and Streamflow Characteristics Relevant to the Use of Index StreamgagesdocumentScientific Investigations ReportSIR 2014-5061Reston, VAU.S. Geological Surveyhttps://pubs.usgs.gov/sir/2014/5061/Correlation of flows at pairs of streamgages were evaluated using a Spearman’s rho correlation coefficient to
better identify gages that can be used as index gages to estimate daily flow at ungaged stream sites in West
Virginia. Correlation maps were developed for each candidate index streamgage using ordinary kriging, and
have been compiled as grids. Sets of grids were developed for correlation of daily flows of streamgages on
unregulated streams in and near (within 50 miles of) West Virginia that were operated during the 1930-2011
water years for:
(1) complete water years for the entire period of record (1930-2011),
(2) October-December for the entire period of record,
(3) January-March for the entire period of record,
(4) April-June for the entire period of record,
(5) July-September for the entire period of record,
(6) complete water years for 1963-1969,
(7) complete water years for 1970-1979, and
(8) complete water years for 1992-2011.
Details of analytical approach, results, discussion, and limitations are contained in the U.S. Geological Survey
Scientific Investigations Report 2014-5061.The purpose of these data are to document the Spearman's rho correlation coefficients for each gage, and to
document station centroids used to develop correlation maps of index streamgages to ungaged streams.
These data were used to determine stations which are appropriate for estimating ungaged stream statistics:
This metadata file pertains to the Basin Centroid Points for Unregulated Streamgagages in and near West
Virginia 1930-2011 and the subsets listed below:
These data sets are available for download at the bottom of this metadata file.
sir2014-5061_app1_1930_2011_full_year.zip which contains SIR2014_5061.Appendix1.gdb which represents flow correlation at all unregulated streamgages for full years, 1930–2011 (391 gages).
sir2014-5061_app2_1930_2011_fall.zip which contains SIR2014_5061.Appendix2.gdb which represents flow correlation at all unregulated streamgages for fall months only, 1930–2011 (391 gages).
sir2014-5061_app3_1930_2011_winter.zip which contains SIR2014_5061.Appendix3.gdb which represents flow correlation at all unregulated streamgages for winter months only, 1930–2011 (391 gages).
sir2014-5061_app4_1930_2011_spring.zip which contains SIR2014_5061.Appendix4.gdb which represents flow correlation at all unregulated streamgages for spring months only, 1930–2011 (391 gages).
sir2014-5061_app5_1930_2011_summer.zip which contains SIR2014_5061.Appendix5.gdb which represents flow correlation at all unregulated streamgages for summer months only, 1930–2011 (391 gages).
sir2014-5061_app6_1963_1969.zip which contains SIR2014_5061.Appendix6.gdb which represents flow correlation at all unregulated streamgages for full years, 1963–1969 (198 gages).
sir2014-5061_app7_1970_1979.zip which contains SIR2014_5061.Appendix7.gdb which represents flow correlation at all unregulated streamgages for full years, 1970–1979 (243 gages).
sir2014-5061_app8_1992_2011.zip which contains SIR2014_5061.Appendix8.gdb which represents flow correlation at all unregulated streamgages for full years, 1992–2011 (248 gages).
2014Publication DateAs needed-83.437845-76.82346841.27142336.502605USGS ThesaurusDaily flow correlationflow estimationindex gagesriversstreamsInland watersISO 19115 Topic CategoryDaily flow correlationflow estimationindex gagesriversstreamsInland watersGeographic Names Information SystemWest VirginianoneUser must give credit to the U.S. Geological Survey, West Virginia Water Science CenterUS Geological SurveyT. MessingerHydrologistmailing
West Virginia Water Science Center
11 Dunbar Street
CharlestonWest Virginia25301US(304) 347-5130tmessing@usgs.govhttps://water.usgs.gov/GIS/browse/sir2014-5061.pngIllustration of data setpngMessinger, T., and Paybins, K.S.Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.0.2414Attribute values of fields with USGS Station number headings contain values of Spearman's rho that were calculated from daily flow value in the stastical package "R" (v. 2.15.1; R Core Team, 2012) package Hmisc (v. 3.10-1; Harrell, 2012).The stream gages and basin boundary center points are not spread evenly over the state of West Virginia because they represent river monitoring stations. However, the locations of the input data should represent the basins accurately.Data represent unregulated stream gages in 2011 or earlier. Any new gages after this time are not included. Estimates for flow at ungaged streams were calculated for the entire state of West Virginia, including a 25 mile buffer.Basin centroids for streamgage basins were obtained from published reports and vary by source. References are cited in table 1 (Messinger and Paybins, 2014).vertical accuracy does not apply to these data.US Geological Survey20040101NWIS Site Information for Stream-flow gaging stationsonline-databaseStation location information is available through the online linkage. The locations of discontinued stations or partial-record stations are available through the USGS West Virginia Water Science Center.http://waterdata.usgs.gov/nwis/sidigital database20140402publication dateNWIS gagesCoordinates for each continuous-record streamflow-gaging stations, partial record streamflow-gaging stations of the U.S. Geological Survey are available on-line in the NWIS database. These coordinates were used to plot points for outlet points for each drainage basin.U.S. Geological Survey19990101National Elevation Dataset1raster digital dataSioux Falls, SDU.S. Geological Surveyaccessed November 16, 2004 at http://ned.usgs.gov/
Geospatial elevation data are utilized by the scientific and resource management communities for global change research, hydrologic modeling, resource monitoring, mapping, and visualization applications.http://ned.usgs.gov/digital vector data2013publication dateNEDData were used for delineation of watersheds as a guide to on-screen digitizing of drainage areas and for checking boundaries previously digitized. No DEM-delineated lines were used as boundaries.WV Division of Natural Resources 20040501Streams - National Hydrography Dataset (NHD - 24k)http://wvgis.wvu.edu/searchResults.php?headerSearchCategory=all&Keywords=NHDdigital vector data20040501publication dateNHD - 24kThe high resolution National Hydrography Dataset (NHD) is a feature-based database completed at 1:24,000 scale that interconnects and uniquely identifies the stream segments or reaches that make up the nations surface water drainage system.WV Department of Environmental Protection2005West Virginia State Boundary polygonmaphttp://wvgis.wvu.edu/data/dataset.php?ID=13624,000online20140311West Virginia state boundaryWVA State Bndryclipping mask for kriging outputU.S. Geological Survey streamgages operated on unregulated streams in and within 50 miles of West Virginia during water years 1930-2011 were identified. Daily streamflow data and gage location information were downloaded from NWIS-web.20130402T. MessingerWest Virginia Water Science CenterHydrologist11 Dunbar StreetCharlestonWest Virginia25301(304) 347-5130Drainage basin centroids were identified for each polygon from published sources. See Messinger and Paybins, 2014 table 1 for complete citation information.20130425T. MessingerWest Virginia Water Science CenterHydrologist11 Dunbar StreetCharlestonWest Virginia25301(304) 347-5130The Spearman’s rho correlation coefficient was computed for selected periods of record using R, version 2.15.1 (R Core Team, 2012) and the R package Hmisc, version 3.10-1 (Harrell, 2012).20130819T. MessingerWest Virginia Water Science CenterHydrologist11 Dunbar StreetCharlestonWest Virginia25301(304) 347-5130Tables of correlation coefficients were joined with the basin centroids.20130823T. MessingerWest Virginia Water Science CenterHydrologist11 Dunbar StreetCharlestonWest Virginia25301(304) 347-5130tmessing@usgs.govVectorpoint3918.9831528411952133e-0098.9831528411952133e-009Decimal DegreesD North American 1983GRS 19806378137.0298.257222101BasinCentroidsfor_Unregulated_streamgages_in_and_near_WV_1992_2011Point locations for centroids of USGS streamgage basin boundariesNWIS webGS_01560000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagevarious sources-1.0001.0000.005GS_01562000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_01564500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_01571184Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_01573849Spearman’s rho correlation coefficient for the 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designer-1.0001.0000.005GS_03070350Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03070500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03072000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03073000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03074500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03075500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03075905Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03076600Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03078000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03079000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03080000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03084800Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03085213Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03085500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03093000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03106000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03106500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03108000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03109500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03110000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03110830Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03111500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03111548Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03112000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03113990Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03114500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03115400Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03117500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03118500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03121850Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03141870Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03149500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03151400Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03155220Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03155500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03157000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03158200Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03159540Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03164000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03165000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03167000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03170000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03173000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03175500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03177710Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03178000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03179000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03180300Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03180500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03182500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03183000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03183500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03184000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03185000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03186500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03187500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03189100Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03190400Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03191500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03194700Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03198350Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03198500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03198690Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03200500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03201000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03201405Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03201902Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03201980Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03202000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03202400Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03202750Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03204205Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03204210Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03204215Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03204220Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03205470Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03206600Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03207800Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03208500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03208950Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03210000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03212640Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03212750Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03212980Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03213500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03213620Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03213700Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03214500Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03214900Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03217000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03237255Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03248300Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03250100Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03277300Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03488000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005GS_03524000Spearman’s rho correlation coefficient for the correlation of daily flows with each streamgagedataset designer-1.0001.0000.005OBJECTIDInternal feature number.ESRISequential unique whole numbers that are automatically generated.ShapeFeature geometry.ESRICoordinates defining the features.StaNumbUSGS unique identification number for monitoring pointsUSGS NWIS webUnique identifier numbers representing USGS streamgages. In these files, numbers are of the form "GS_", for "Gaging station," followed by the USGS streamgaging-station number, an 8-digit string.StationStation nameUSGS NWISText name describing stream name and feature location of streamgageXCentroid of the watershed Latitude in decimal degrees, geographic coordinates, NAD83various sourcesCoordinate accuracy aproximately 5 meters were recorded over time and vary by method.YCentroid of the watershed Longitude in decimal degrees, geographic coordinates, NAD83various sourcesCoordinate accuracy aproximately 5 meters were recorded over time and vary by method.U.S. Geological SurveyMichael IerardiIT Specialistmailing and physical address
445 National Center
RestonVA20192USA1-888-275-8747 (1-888-ASK-USGS)mierardi@usgs.govDownloadable dataAlthough this data set has been used by the U.S. Geological
Survey, U.S. Department of the Interior, no warranty expressed or
implied is made by the U.S. Geological Survey as to the accuracy
of the data and related materials. The act of distribution shall not
constitute any such warranty, and no responsibility is assumed by
the U.S. Geological Survey in the use of this data, software, or
related materials.
Any use of trade, product, or firm names is for descriptive
purposes only and does not imply endorsement by the U.S.
Government.ArcGIS File Geodatabase2013Geodatabase with line feature classes and raster grids which contains flow correlation at all unregulated streamgages for full years, 1930–2011 (391 gages).Multiple rasters for correlations maps of streamgages in and near West Virginiazipped44.177https://water.usgs.gov/GIS/dsdl/sir2014-5061_app1_1930_2011_full_year.zipArcGIS File Geodatabase2013Geodatabase with line feature classes and raster grids which contains flow correlation at all unregulated streamgages for fall months only, 1930–2011 (391 gages).Multiple rasters for correlations maps of streamgages in and near West Virginiazipped29.994https://water.usgs.gov/GIS/dsdl/sir2014-5061_app2_1930_2011_fall.zipArcGIS File Geodatabase2013Geodatabase with line feature classes and raster grids which contains flow correlation at all unregulated streamgages for winter months only, 1930–2011 (391 gages).Multiple rasters for correlations maps of streamgages in and near West Virginiazipped26.257https://water.usgs.gov/GIS/dsdl/sir2014-5061_app3_1930_2011_winter.zipArcGIS File Geodatabase2013Geodatabase with line feature classes and raster grids which contains flow correlation at all unregulated streamgages for spring months only, 1930–2011 (391 gages).Multiple rasters for correlations maps of streamgages in and near West Virginiazipped26.198https://water.usgs.gov/GIS/dsdl/sir2014-5061_app4_1930_2011_spring.zipArcGIS File Geodatabase2013Geodatabase with line feature classes and raster grids which contains flow correlation at all unregulated streamgages for summer months only, 1930–2011 (391 gages).Multiple rasters for correlations maps of streamgages in and near West Virginiazipped26.608https://water.usgs.gov/GIS/dsdl/sir2014-5061_app5_1930_2011_summer.zipArcGIS File Geodatabase2013Geodatabase with line feature classes and raster grids which contains flow correlation at all unregulated streamgages for full years, 1963–1969 (198 gages).Multiple rasters for correlations maps of streamgages in and near West Virginiazipped22.575https://water.usgs.gov/GIS/dsdl/sir2014-5061_app6_1963_1969.zipArcGIS File Geodatabase2013Geodatabase with line feature classes and raster grids which contains flow correlation at all unregulated streamgages for full years, 1970–1979 (243 gages).Multiple rasters for correlations maps of streamgages in and near West Virginiazipped27.720https://water.usgs.gov/GIS/dsdl/sir2014-5061_app7_1970_1979.zipArcGIS File Geodatabase2013Geodatabase with line feature classes and raster grids which contains flow correlation at all unregulated streamgages for full years, 1992–2011 (248 gages).Multiple rasters for correlations maps of streamgages in and near West Virginiazipped27.991https://water.usgs.gov/GIS/dsdl/sir2014-5061_app8_1992_2011.zipnone, data are provided by the USGS as a public service201420140310US Geological SurveyAsk USGS -- Water Webserver Teammailing
445 National Center
RestonVirginia20192US1-888-275-8487 (1-888-ASK-USGS)mierardi@usgs.govFGDC Content Standard for Digital Geospatial MetadataFGDC-STD-001-1998local time