MS027
Average monthly and annual precipitation spatial grids. (1971-2000 and 1980-1989), Andrews Experimental Forest

CREATOR(S): Christopher Daly

PRINCIPAL INVESTIGATOR(S): Christopher Daly

ORIGINATOR(S): Christopher Daly

OTHER RESEARCHER(S): Kim Bredensteiner

DATA SET CONTACT PERSON: Theresa J. Valentine

METADATA CONTACT: Theresa J. Valentine

ABSTRACTOR: Theresa J. Valentine

TOOL CONTACT: Christopher Daly

DISTRIBUTOR: Theresa J. Valentine

METADATA CREATION DATE:

3 Nov 2004

MOST RECENT METADATA REVIEW DATE:

22 Dec 2015

KEYWORDS:

Disturbance, Organic matter, meteorology, climatology, climate, precipitation, disturbance, modeling

PURPOSE:

Display and/or analyses requiring spatially distributed monthly or annual precipitation for the climatological periods of 1971-2000 and 1980-89.

METHODS:

Processing Procedures - MS027:

Description: It is beyond the scope of this metadata to document the processes involved in generating spatially gridded precipitation using the PRISM model. However, the processes are documented in numerous conference proceedings and journal articles. The references can be found online at http://www.prism.oregonstate.edu.

Instrumentation: Care should be taken in estimating precipitation values at any single point on the map. Precipitation estimated for each grid cell is an average over the entire area of that cell; thus, point precipitation can be estimated at a spatial precision no better than half the resolution of a cell. For example, the Oregon precipitation data was distributed at a resolution of approximately 4km. Therefore, point precipitation can be estimated at a spatial precision no better than 2km. However, the overall distribution of precipitation features is thought to be accurate. All data were based on the same averaging period (1980-1989 or 1971-2000). Similar quality assurance procedures were used with all input data sets.

Citation: http://www.prism.oregonstate.edu

Processing Procedures - MS027 (1):

Description: Converted from ASCII text file to ARC/INFO Grid format, using ASCIItoRaster tool in arcgis desktop version 10.0

TAXONOMIC SYSTEM:

None

GEOGRAPHIC EXTENT:

HJ Andrews Experimental Forest, Willamette National Forest, Oregon

ELEVATION_MINIMUM (meters):

ELEVATION_MAXIMUM (meters):

PROGRESS DESCRIPTION:

Complete

UPDATE FREQUENCY DESCRIPTION:

notPlanned

CURRENTNESS REFERENCE:

Ground condition