Data Set Title / Coverage Name: Average Monthly Precipitation by Climate Division SAA Version 3.0 Version Date: 3/21/96 ---------------------------------------------------------------- ---------------------------------------------------------------- Identification Information Data Layer Name: pcp** (where ** is the last two numbers for a year) Description: NOAA Climate Divisions with monthly Average Monthly Precipitation Keywords: climate, climate divisions, precipitation Citation: Native Data Set Environment: UNIX; ARC/INFO 7.0.3 pathname: Scale: 1:2,000,000 File Format: ARC/INFO 7.0.3 polygon coverage Use Restrictions: Access Restrictions: ---------------------------------------------------------------- ---------------------------------------------------------------- Spatial Reference Information Datum: North American Datum 1983 (NAD83) Precision: single Projection: Albers Equal Area Units: meters Spheroid: WGS-84 1st Std Parallel: 34 00 00 2nd Std Parallel: 38 00 00 Central Meridian: -82 00 00 Origin: 33 00 00 False Northing: 0.0 False Easting: 0.0 Extent: West Bounding Coord.: -428494.531 East Bounding Coord.: 359343.562 North Bounding Coord.: 739745.062 South Bounding Coord.: 10488.265 Distance Resolution: Vertical Resolution: n/a ---------------------------------------------------------------- ---------------------------------------------------------------- Data Quality Information Thematic Accuracy: unknown Confidence: unknown Accuracy Method: unknown Horizontal Accuracy: unknown Confidence: unknown Accuracy Method: unknown Vertical Accuracy: n/a Logical Consistency: Completeness: ---------------------------------------------------------------- ---------------------------------------------------------------- Source Information Source Material: USGS 1:2,000,000 DLG of Political Boundaires (Counties) Organization: Acquired from USGS Date: Distance Resolution: unknown Contribution: County Lines Source Material: Organization: Date: Distance Resolution: unknown Contribution: Source Material: NOAA Climate Divisions and monthly data from NOAA National Climate Data Center Organization: Date: Distance Resolution: unknown Contribution: --------------------------------------------------------------- --------------------------------------------------------------- Processing History Information Process Description: It was noted that there was poor agreement between the NOAA Climate Division coverage and the USGS coverage. A systematic x shift was observed. Given that most line work in the Climate Division coverage is based on County lines in the Eastern United States, the climate divisiosn were recontructed using the USGS data. This provided the correct assignment of climate division information with other SAA data. Where climate division lines didn't follow county lines, the line work was either taken from the climate division coverage or digitized on the monitor to the best estimated position with respect to the original climate division coverage. The average montly precipitation data was converted to INFO files and joined to the CLDV coverage by relating on the CD_DIV value common to both datasets. ---------------------------------------------------------------- ---------------------------------------------------------------- Entity/Attribute Information Entity: PCP**.PAT Definition: climate division polygon Attributes: CL_DIV - CLIMATE DIVISION NUMBER CDNAME - CLIMATE DIVSION NAME YR: Year for the Precipitation estimates PC1: Precipitation for January PC2: Precipitation for February PC3: Precipitation for March PC4: Precipitation for April PC5: Precipitation for May PC6: Precipitation for June PC7: Precipitation for July PC8: Precipitation for August PC9: Precipitation for September PC10: Precipitation for October PC11: Precipitation for November PC12: Precipitation for December Entity: Definition: Attributes: Entity: Definition: Attributes: ---------------------------------------------------------------- ---------------------------------------------------------------- Status Information Data Set Status: Available Release Date: 3/21/96 ---------------------------------------------------------------- ---------------------------------------------------------------- Metadata Reference Information Date: 3/20/96 Review Date: Contact: Karl A. Hermann National Biological Service Cooperative University of Tennessee 17 Ridgeway Road Norris, TN 37828 samab@utk.edu (423)-632-1452 ---------------------------------------------------------------- ---------------------------------------------------------------- Distribution Information Distribution Contact: Karl A. Hermann National Biological Service Cooperative University of Tennessee 17 Ridgeway Road Norris, TN 37828 samab@utk.edu (423)-632-1452 Distribution Liability: File Compression Technique: UNIX compress, Arc/Info export format Transfer Size: --------------------------------------------------------------- --------------------------------------------------------------- Contact Information Contact Person: Karl A. Hermann Contact Mail Address: National Biological Service Cooperative University of Tennessee 17 Ridgeway Road Norris, TN 37828 Contact Phone: (423)-632-1452 Contact Fax: (423)-632-1612 Contact email: samab@www.lib.utk Home Page for Updates: http://www.lib.utk.edu/samab ---------------------------------------------------------------- ----------------------------------------------------------------