Project Description
The LandScan data set is a worldwide population database
compiled on a 30" X 30" latitude/longitude grid. Census counts
(at sub-national level) were apportioned to each grid cell based
on likelihood coefficients, which are based on proximity to
roads, slope, land cover, nighttime lights, and other data
sets. LandScan 2001 has been developed as part of Oak Ridge
National Laboratory (ORNL) Global Population Project for
estimating ambient populations at risk. The LandScan files are
available via the internet in ESRI grid format by continent and
for the world.

Additional information available at

[Summary provided by ORNL]