SAFARI 2000 Carbon in Live Vegetation, 0.5-Deg (Olson)

This data set is a subset of Olson's Major World Ecosystem Complexes for southern Africa in ASCII GRID and binary image files formats. Olson's Major World Ecosystem Complexes Ranked by Carbon in Live Vegetation is a computerized database, used to generate a global vegetation map of 44 different land ecosystem complexes (mosaics of vegetation or landscapes) comprising seven broad groups. The map is derived from patterns of preagricultural vegetation, modern areal surveys, and intensive biomass data from research sites. Work on the database was begun in 1960 and completed in 1980. Ecosystem complexes are defined for each 0.5-degree grid cell, reflecting the major climatic, topographic, and land-use patterns. Numeric codes are assigned to each vegetation type. Classifications include natural as well as human managed/modified complexes such as mainly cropped, residential, commercial, and park. The complexes are ranked by estimated organic carbon in the mass of live plants given in units of kilograms of carbon per square meter. Counting the cells of each type and adding their areas give total area estimates for the ecosystem complexes. Multiplying by carbon estimates gives corresponding estimates of global carbon by ecosystem complex. The results help define the role of the terrestrial biosphere in the global carbon cycle. Information about the ecosystem classifications, as well as the procedure used to create the southern Africa subset can be found at: ftp://daac.ornl.gov/data/safari2k/vegetation_wetlands/olson/comp/olson_README.pdf.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated June 23, 2026, 02:13 (UTC)
Created April 1, 2025, 18:37 (UTC)
accessLevel public
bureauCode {026:00}
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harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/633
license https://www.usa.gov/government-works
modified 2026-06-15T22:16:02Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
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source_hash b2d22f6b1f4d165a1da0ed54ab95452c9de97eadd1bcb4e513d5b929c20e8555
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spatial ["CARTESIAN", [{"WestBoundingCoordinate": 5.0, "NorthBoundingCoordinate": 5.0, "EastBoundingCoordinate": 60.0, "SouthBoundingCoordinate": -35.0}]]
temporal 1960-01-01/1980-12-31
theme {"Earth Science"}