September 18, 2008
Cambodian Genocide Program // Yale University
Abstract:
CGEO is a searchable, interactive database of maps, satellite images, and detailed information on 130,000 locations across Cambodia. It includes:
1) a series of digital map layers displaying Cambodia’s relief and elevation and recording its political and environmental geography in 1962, 1972, 1973-76, 1990, and 2000.
2) another series of layers showing, on any of those maps:
1. the locations and names of Cambodia’s 13,042 villages (phum)
2. a spatially referenced display and description of the 115,273 sites targeted in the 231,467 US bombing sorties flown over Cambodia between October 1965 and May 1975, dropping 2,757,107 tons of munitions
3. the locations of 158 prisons run by the Khmer Rouge (Democratic Kampuchea, or ‘DK’) during April 1975-January 1979
4. 309 DK mass-grave sites (including 258 estimated to each contain six or more bodies; 125 sites, 1,000 or more; 27 sites, 10,000 bodies or more; and 7 sites, 30-70,000 each); in an estimated total of 19,000 grave pits.
5. 76 sites of post-1979 memorials to victims of the Khmer Rouge.
Any of the first series of layers can be displayed in combination with any or all of the second series, along with other geographic layers such as the boundaries of provinces (khet) and subdistricts (khum), DK-era Zone (phumipeak) and Region (damban) boundaries, and roads and watercourses. Just click on any selected box(es) in the map’s legend at right, then “Refresh.” Map layers listed closer to the top of the legend display over those listed below them. Zoom in by clicking the '+' magnifying-glass icon (second from top at left) and drawing a square around a selected portion of the map.
To read attributes of any points in the second series of layers, click on the appropriate boxes in the legend at right, to make the points "Visible" and "Active," then on the Information icon " i" in the black circle at left of the map, and move the cross-hair cursor to click precisely on the selected point on the map. For phum, this displays the name of the village on that site.
For US bombing points, attributes of a site’s bombardment are displayed in tabular form, e.g. the date of the bombing, exact location, the number and type of aircraft in the sortie, bombing load and ordnance type, the nature of the intended target, and bomb damage assessment (BDA). Individual sortie payloads ranged in size from tens of lbs. to several thousand tons. The dataset details the 42 aircraft types deployed, including B-52's, and the 188 types of munitions they dropped, including 500-lb. 'carpet bombs', cluster bombs, fire bombs and 1000-lb. bombs.
For the DK mass grave sites, attributes include the estimated number of pits and bodies....