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USGS reference watershed runoff ratios for the contiguous U.S. 1981 to 2016.

Authors: John Hammond
Owners: John Hammond
DOI:10.4211/hs.97bf4dd2b3db4e799407e3e8c3e794f0 How to Cite
Resource type:Generic
Created:Jun 14, 2017 at 9:56 p.m.
Last updated: Jun 15, 2017 at midnight by John Hammond


Here I provide water year discharge (Q) and precipitation (P) in units of mm as well as the water year runoff ratio (Q/P) for all reference USGS watersheds as defined by the GAGES-II project (Falcone, 2011) for water years 1981 to 2016. Precipitation values were extracted from PRISM monthly totals for the "Recent years" 4 km gridded dataset, and discharge values come from summations of USGS daily mean streamflow values. The dataset contains Q, P, and Q/P data by watershed for 1,594 reference USGS watersheds.

Subject Keywords

streamflow,runoff ratio,precipitation,PRISM,USGS

How to cite

Hammond, J. (2017). USGS reference watershed runoff ratios for the contiguous U.S. 1981 to 2016., HydroShare, https://doi.org/10.4211/hs.97bf4dd2b3db4e799407e3e8c3e794f0

This resource is shared under the Creative Commons Attribution CC BY.


Sharing status:

  • Published Resource  Published



 Coordinate System/Geographic Projection:  WGS 84 EPSG:4326
 Coordinate Units:  Decimal degrees
North Latitude
East Longitude
South Latitude
West Longitude


 Start Date:
 End Date:


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