Chris Daly of Oregon State University and George Taylor of the Oregon Climate Service at Oregon State University, 199804, Wyoming Average Monthly or Annual Precipitation, 1961-90: Water and Climate Center of the Natural Resources Conservation Service, Portland, Oregon, USA.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.02083333. Longitudes are given to the nearest 0.02083333. Latitude and longitude values are specified in Decimal Degrees.
The horizontal datum used is North American Datum of 1927.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6378137.0.
The flattening of the ellipsoid used is 1/298.257222101.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
Range of values | |
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Minimum: | 0 |
Maximum: | 600 |
Units: | inches |
Resolution: | 2 inches |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 600 |
Units: | inches |
Resolution: | 2 inches |
Oregon Climate Service at Oregon State University
Strand Ag Hall 326, Oregon Climate Service, Oregon State University
Corvallis, OR 97331-2209
USA
(541) 737-5705 (voice)
(541) 737-5710 (FAX)
oregon@oce.orst.edu
Display and/or analyses requiring spatially distributed monthly or annual precipitation for the climatological period 1961-90. Supplemental_Information: There are many methods of interpolating precipitation from monitoring stations to grid points. Some provide estimates of acceptable accuracy in flat terrain, but few have been able to adequately explain the extreme, complex variations in precipitation that occur in mountainous regions. Significant progress in this area has been achieved through the development of PRISM (Parameter-elevation Regressions on Independent Slopes Model). PRISM is an analytical model that uses point data and a digital elevation model (DEM) to generate gridded estimates of monthly and annual precipitation (as well as other climatic parameters). PRISM is well suited to regions with mountainous terrain, because it incorporates a conceptual framework that addresses the spatial scale and pattern of orographic precipitation.
National Climatic Data Center (NCDC), 1991, U.S. National 1961-1990 Climate Normals, Climatography of the United States No. 81: National Climatic Data Center (NCDC), Asheville, NC, USA.
Natural Resources Conservation Service, 1991, Cooperative Snow Survey Data of Federal - State - Private Cooperative Snow Surveys: Cooperative Snow Survey Data of Federal - State - Private Cooperative Snow Surveys Annual issue for Western US states, Natural Resources Conservation Service, Water and Climate Center, Portland, OR, USA.
, Unpublished material, Local Precipitation monitoring networks.
Agency, Defense Mapping , 1985, 1:250,000-scale Digital Elevation Models (DEM) also known as 1-Degree DEM's: U.S. Geological Survey, Washington, DC.Online Links:
This shapefile was reprojected and clipped to the Snake/Salt River Basin Boundary as part of the Wyoming Water Plan
Point estimates of precipitation originated from the following sources: National Weather Service Cooperative (COOP) stations, 2) Natural Resources Conservation Service (NRCS) SNOTEL, 3) local networks. All COOP station data were subjected to quality control checks by the National Climatic Data Center (NCDC).
Polygon and chain-node topology present. Checks were made to ensure that no two adjacent polygons are labeled with the same precipitation value. A manual spot check was made of peaks, depressions, and islands.
Are there legal restrictions on access or use of the data?
- Access_Constraints: n/a, no restrictions apply
- Use_Constraints:
- Acknowledgement of the following agencies in products derived from these data: Natural Resources Conservation Service (NRCS) Water and Climate Center, NRCS National Cartography and Geospatial Center (NCGC), PRISM Model, and the Oregon Climate Service at Oregon State University.
Oregon Climate Service
316 Strand Agricultural Hall
Corvallis, OR 97331
USA
(541) 737-5705 (voice)
(541) 737-5710 (FAX)
oregon@oce.orst.edu
Downloadable Data
This ftp site was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or misuse
Data format: | ARC/INFO coverage Size: 0.692 |
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Network links: |
Geographic data are intended for use in a Geographic Information System
Tye Parzybok
Strand Ag Hall 326, Oregon Climate Service, Oregon State University
Corvallis, OR 97331-2209
USA
(541) 737-5705 (voice)
(541) 737-5710 (FAX)
parzy@oce.orst.edu