Arid land irrigation in the United States Pacific Northwest for 2001
Dates
Publication Date
2013-05-01
Time Period
2001-01-01
Summary
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the extent of arid land irrigation in the Pacific Northwest region of the United States (Hydro Region 17; Major River Basin 7 (MRB7)) during 2001.
Summary
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the extent of arid land irrigation in the Pacific Northwest region of the United States (Hydro Region 17; Major River Basin 7 (MRB7)) during 2001.
This data set was intended to represent spatially explicit landscape characteristics in the application of the SPARROW (SPAtially Referenced Regressions On Watershed attributes) model to assess total nitrogen and total phosphorus conditions in surface water in Major River Basin 7 (MRB7) using the National Hydrography Dataset as a hydrologic framework.