CRU-TS v3.10.01 Historic Climate Database for GIS
In July 2012, UEA issued a patch on the PRE variable (precipitation) of the v3.10, noting: “A systematic error was discovered in the CRUTS v3.10 process generating the precipitation, wet days and frost frequency data files. New precipitation data files (version 3.10.01) have been generated and are now available in the archive.” The PRE rater layers in the [Download] has been updated accordingly.
Description
In January 2010, the University of East Anglia officially released the CRU-TS 3.0 Climate Database (See the official data release at http://badc.nerc.ac.uk/data/cru). This new version of database covers from 1901 to 2006*, globally at 0.5 degree spatial resolution on land areas. To help facilitate the use of this database in the CSI community using GIS software, we have converted the raw data into the ESRI ASCII raster format.
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The database contains following nine variables. Each variable was scaled by the factor described in the table to store as integer.
| Label | Variable | Unit | Scaling Factor |
| cld | cloud cover | % | 10 |
| dtr | diurnal temperature range | degree Celcius | 10 |
| frs | frost day frequency | days | 100 |
| pre | precipitation | mm | 10 |
| tmp | daily mean temperature | degree Celcius | 10 |
| tmn | monthly average daily minimum temperature | degree Celcius | 10 |
| tmx | monthly average daily maximum temperature | degree Celcius | 10 |
| vap | vapour pressure | hecta-Pascals | 10 |
| wet | wet day frequency | days | 100 |
This work was supported by the Integrated Pest Management Collaborative Research Support Program (IPM CRSP), an initiative of the U.S. Agency for International Development (USAID).