Population data surfaces GeoTIFF
The High Resolution Settlement Layer (HRSL) provides estimates of human population distribution at a resolution of 1 arc-second (approximately 30m) for the year 2015. The population estimates are based on recent census data and high-resolution (0.5m) satellite imagery from DigitalGlobe. The population grids provide detailed delineation of settlements in both urban and rural areas. The data were developed using computer vision techniques to classify blocks of optical satellite data as settled (containing buildings) or not. Proportional allocation was used to distribute population data from subnational census data to the settlement extents. The data are distributed as a GeoTIFF file with three bands. Band 1 represents the population estimates (in persons). Band 2 represents settlement extents and has a value of 1 where buildings were detected in the imagery. It is possible for buildings to be detected in pixels but no population values assigned in cases where the census data show a unit as uninhabited. Band 3 has a value of 1 where cloud was present in the source imagery.
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|Last updated||September 21, 2017|
|License||Creative Commons Attribution 4.0|
|Created||over 4 years ago|
|last modified||over 4 years ago|
|on same domain||True|