Subset of the aridity zone map (hyperarid, arid, semiarid, and dry subhumid)Entry ID: MEAR_30
Abstract: The dataset is a subset of the aridity zone map created by CRU/UEA, UNEP/GRID for the World Atlas of Desertification. Aridity zones were derived from an Aridity Index (AI) which is calculated as the ratio of precipitation to potential Evapotranspiration. Zones included in this dataset are: hyper arid, arid, semiarid, and dry sub humid.
Purpose: The dataset has been developed to define the Millennium Ecosystem Assessment (MA) dry land system boundary.
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Access Constraints Unrestricted access and use of data without charge.
Use Constraints Users are prohibited from any commercial or non-free resale of this data.
Role: DIF AUTHOR
Phone: (301) 614-6898
Email: Tyler.B.Stevens at nasa.gov
NASA Goddard Space Flight Center Global Change Master Directory
Province or State: MD
Postal Code: 20771
Phone: +44 (0)1223 277722
Fax: +44 (0)1223 277136
Email: info at unep-wcmc.org
Information Office, UNEP-WCMC 219 Huntingdon Road
Postal Code: CB3 0DL
Role: TECHNICAL CONTACT
Email: lta at usgs.gov
LTA Customer Services U.S. Geological Survey EROS Center 47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Creation and Review Dates
DIF Creation Date: 2007-04-10
Last DIF Revision Date: 2007-08-14