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Annual Estimates of Water-Budget Components Based on Hydrograph Separation and PRISM Precipitation for Gaged Basins in the Appalachian Plateaus Region, 1900-2011
As part of the U.S. Geological Survey’s Groundwater Resources Program
study of the Appalachian Plateaus aquifers, estimates of annual water-budget
components were determined at 849 continuous-record streamflow gaging
stations from Mississippi to New York. Base flow, which can serve as a proxy
for annual recharge, streamflow, and runoff were estimated from computer
programs—PART (Rutledge, 1993), HYSEP (Sloto and Crouse, 1996), and BFI
(Wahl and Wahl, 1988)—that are included in the hydrograph analysis component
provided with version 1.0 of the U.S. Geological Survey Groundwater Toolbox.
Only complete years (January to December) of record at each gage were used
to determine annual estimates. Estimates of base-flow index, which is the
percentage of streamflow from base flow, are included in the annual and average
tables. Precipitation was estimated by calculating the average of cell values in the
PRISM dataset intercepted by basin boundaries where previously defined in the
GAGES-II dataset (Falcone, 2011). Estimates of evapotranspiration were then
calculated from the difference between precipitation and streamflow.
Complete Metadata
| @id | http://datainventory.doi.gov/id/dataset/4676bf56a5bd2f70ec4760258afb0586 |
|---|---|
| bureauCode |
[ "010:12" ] |
| identifier | USGS:9fc60de3-e030-4cdd-b76a-bac6cae57694 |
| spatial | -88.5772,32.5329,-75.5421,42.7369 |
| theme |
[ "geospatial" ] |
