[Personnel: Last_Name='WORLD RESOURCES INSTITUTE', First_Name='WRI PUBLICATIONS']
Global mountain system boundary from UNEP-WCMC Mountain Watch report (30 arc-sec grid, 2002)Entry ID: MEAR_35
Abstract: Mountain system boundary for the Millennium Ecosystem Assessment. The mountain extent has been defined using UNEP-WCMC's location of mountain land as described in the Mountain Watch report. Sub-classes have been created through climatically defined life-zones. The location of mountain land estimated by UNEP-WCMC from a digital elevation model using criteria based on elevation (for elevations ... greater than 2500 m ) ; and elevation, slope, and local elevation range (for lower elevations) forms the extent of the MA mountain system. Sub-system classes have been defined within this extent for humid and dry global land areas. For humid climates, thermal discrimination factors of CMT (mean temperature of the coldest month) and WI (warmth index) as defined by M. Ohsawa (see source information) have been modeled and form classes 1 to 11. For dry climates, the Holdridge life zone classes depicting dry vegetation have been extracted; these include: dry forests, scrub, steppe, woodlands, dry tundra, and deserts, and form classes 12 to 23.
Purpose: Delineates the spatial extent of the mountain system boundary (and sub-system classes) for use within the MA.
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Role: DIF AUTHOR
Phone: (301) 614-6898
Email: Tyler.B.Stevens at nasa.gov
NASA Goddard Space Flight Center Global Change Master Directory
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Creation and Review Dates
DIF Creation Date: 2012-05-31
Last DIF Revision Date: 2013-03-29