[Parameters: Topic='LAND SURFACE', Term='TOPOGRAPHY', Variable_Level_1='TERRAIN ELEVATION']
SAFARI 2000 DIGITAL ELEVATION MODEL, 1-KM (GLOBE)Entry ID: s2k_globe_dem
Abstract: This data set consists of a southern African subset of the Global Land One-Kilometer Base Elevation (GLOBE) digital elevation model (DEM) data in both ASCII GRID and binary image file formats. The Global Land One-Kilometer Base Elevation (GLOBE) digital elevation model (DEM) is a global data set with horizontal grid spacing of 30 arc-seconds (0.008333... degrees) in latitude and longitude, ... resulting in dimensions of 21,600 rows and 43,200 columns. At the Equator a degree of latitude is about 111 kilometers. GLOBE has 120 values per degree, giving GLOBE slightly better than 1-km gridding at the Equator, with progressively finer gridding longitudinally toward the Poles. The horizontal coordinate system is seconds of latitude and longitude referenced to World Geodetic System 84 (WGS84). The vertical units represent elevation in meters above Mean Sea Level. The elevation values range from -407 to 8,752 meters on land. In GLOBE Version 1.0, ocean areas have been masked as no data and have been assigned a value of -500. Because of the nature of the raster structure of the DEM, small islands in the ocean less than approximately 1 square kilometer (specifically, those that are not characterized by at least one 30 grid cell and/or do not have coastlines digitized into Digital Chart of the World or World Vector Shoreline) may not be represented. More information about the procedure used to create the southern African subset is described in the accompanying file ftp://daac.ornl.gov/data/safari2k/almanac/globe_dem/comp/so_africa_....
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Data Set Citation
Dataset Originator/Creator: BOOTZ, M.BRYANT, N.A.DUNBAR, P.K.ELPHINGSTONE, G.M.GLOBE TASK TEAMHASTINGS, D.A.HOLLAND, P.LOGAN, T.L.MCDONALD, J.S.MULLER, J.-P.MURAKAMI, H.SCHREIER, G.
Dataset Title: SAFARI 2000 DIGITAL ELEVATION MODEL, 1-KM (GLOBE)
Dataset Release Date: 2002
Dataset Release Place: Oak Ridge, Tennessee, U.S.A.
Dataset Publisher: Oak Ridge National Laboratory Distributed Active Archive Center
Data Presentation Form: Online Files
Dataset DOI: doi:10.3334/ORNLDAAC/630Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=630&term2attribut...
Start Date: 1999-01-01Stop Date: 1999-06-01
ISO Topic Category
Data Set Progress
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2002-04-01
Last DIF Revision Date: 2012-03-08