Procedure Computation Instance

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{
    "ob_id": 13239,
    "uuid": "7cc3121cfcd848fea28c7fbee0cd538e",
    "title": "Earth Observing System (EOS) Digital Elevation Model (DEM) at 30 arcsecond (~1km)",
    "abstract": "The files in this directory were produced by the ISLSCP2 staff based on the 30 \r\narcsecond (~1km) Earth Observing System (EOS) Digital Elevation Model (DEM) \r\nprovided by Dr. Thomas Logan from NASA/Jet Propulsion Laboratory (JPL). These \r\nare global, coarse resolution (1/4, 1/2 and 1 degree spatial resolutions) binary \r\n( 1 and 0) overlays of land/water and land/sea boundaries.\r\n\r\nThe ISLSCP2 masks are based on the best available 30 arcsecond (~1km) land/water \r\nmasks produced at JPL in support of the EOS AM-1 satellite platform. The JPL \r\nmasks are based in turn on vector data from the World Vector Shoreline (WVS) \r\ndatabase (Solluri and Woodson 1990) for coastlines, and the Digital Chart of the \r\nWorld (DCW) (Danko 1992) for inland water bodies. The WVS is based on older \r\n1:250,000 scale Defense Mapping Agency JOG (Joint Operational Graphics) charts \r\nproduced from a variety of sources. DCW is based on a photogrammetric consistent \r\nmapping at a scale of 1:1,000,000. The ISLSCP2 staff have aggregated the 1km \r\ndata to spatial resolutions of 1/4, 1/2 and 1 degree, in the process generating \r\nlayers with the percentage of land/water or land/sea cells within the coarse \r\nresolution cells. An arbitrary threshold of greater than or equal to 50% water \r\nwas used to designate water dominated cells and to produce binary land/water or \r\nland/sea masks for the data collection.",
    "keywords": "DEM, EOS",
    "inputDescription": null,
    "outputDescription": null,
    "softwareReference": null,
    "identifier_set": []
}