GCIP Reference Data Set (GREDS), U.S. Geological Survey Open-File Report 94-388

The data sets on this compact disc are a compilation of several geographic
reference data sets of interest to the global-change research community. The
data sets were chosen with input from the Global Energy and Water Cycle
Experiment (GEWEX) Continental-Scale International Project (GCIP) Data
Committee and the GCIP Hydrometeorology and Atmospheric Subpanels. The data
sets include: locations and periods of record for stream gages, reservoir
gages, and meteorological stations; a 500-meter-resolution digital elevation
model; grid-node locations for the Eta numerical weather-prediction model; and
digital map data sets of geology, land use, streams, large reservoirs, average
annual runoff, average annual precipitation, average annual temperature,
average annual heating and cooling degree days, hydrologic units, and state and
county boundaries. Also included are digital index maps for LANDSAT scenes,
and for the U.S. Geological Survey 1:250,000, 1:100,000, and 1:24,000-scale map
series. Most of the data sets cover the conterminous United States; the
digital elevation model also includes part of southern Canada. The stream and
reservoir gage and meteorological station files cover all states having area
within the Mississippi River Basin plus that part of the Mississippi River
Basin lying within Canada. Several data-base retrievals were processed by
state, therefore many sites outside the Mississippi River Basin are included.

See: "http://nsdi.usgs.gov" for a complete desciption of metadata and browse
images.