Mapping populations at risk: improving spatial demographic data for infectious disease modeling and metric derivation

Table 4 Components of relational spatial demographic database based on freely available datasets

Feature	Example dataset	Example dataset source
National boundaries	SALB	http://www.unsalb.org
Administrative boundaries	GADM	http://www.gadm.org
DHS boundaries	MEASURE DHS	http://www.measuredhs.com
Coastlines	GBWD	http://dds.cr.usgs.gov/srtm/
Water bodies	SWDB	http://dds.cr.usgs.gov/srtm/version2_1/SWBD/
Land cover	GlobCover	http://www.ionia1.esrin.esa.int
Protected areas	WDBPA	http://www.wdpa.org
Urban extents	MODIS	http://www.sage.wisc.edu/people/schneider/research/data.html
Settlement locations	NGA Geonames	http://www.earth-info.nga.mil/gns/html
Elevation and slope	SRTM	http://www.srtm.csi.cgiar.org
Infrastructure	gRoads	www.ciesin.columbia.edu/confluence/display/roads/Global±Roads±Data

ISSN: 1478-7954