DISCLAIMER: These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data. River discharge measurements are routinely collected at thousands of U.S. Geological Survey (USGS) streamgaging stations annually to develop and maintain the stations’ rating curves (Eberts and others, 2018). Bathymetric or cross-section measurements are essential for computing streamflows, and these measurements...
These files were retrieved from the internet archive on 8/4/24. http://web.archive.org/web/20080921075601/http://epa.gov/waters/doc/historyrf.pdf http://web.archive.org/web/20080921075548/http://epa.gov/waters/doc/rfnsdr.html http://web.archive.org/web/20040821180211/http://www.epa.gov/nsdi/projects/rf1.htm http://web.archive.org/web/20080921075540/http://www.epa.gov/owow/reach/rf1.e00.gz These files were retrieved from USGS web resources on 8/4/24 https://water.usgs.gov/GIS/browse/rf1_appA.HTML https://water.usgs.gov/GIS/browse/rf1_appB.HTML
This data release contains a series of tabular crosswalks with spatial weighting for facilitating the conversion of spatial data between different hydrographic networks and spatial units. The child items in this repository contain the following types of intersections: 1) polygon to polygon 2) polygon to raster 3) flowline to polygon 4) point to network The format of these files is zipped csv containing three columns: id_source, id_target, and weight where: id_source is the case insensitive identifier of the polygons requiring weights. id_target is the case insensitive identifer of the polygons of the target data to be intersected with the id_source. weight (w) is the fractional overlap of id_source to id_target,...
"The data you have secured from the U.S. Geological Survey (USGS) database identified as Mainstem Rivers of the Conterminous United States have not received USGS approval and as such are provisional and subject to revision. The data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use." "Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. The USGS or...
