Demographic information is usually provided on a national basis. But we know that countries are ephemeral phenomena. As an alternate scheme one might use ecological zones rather than nation states. But there is no agreement as to what these zones should be. By way of contrast global environmental studies using satellites as collection devices yield results indexed by latitude and longitude. Thus it makes sense to assemble the terrestrial arrangement of people in a compatible manner. This alternative is explored here, using latitude/longitude quadrilaterals as bins for population information. This data format also has considerable advantage for analytical studies. Dataset Variables There are four files in this dataset. Each file contains one variable. The variables are: 1. population counts (i.e., the number of people in each 5' x 5' cell), unsmoothed with the file name gpxxx or countrawxxx 2. population density (i.e., people per square kilometer), unsmoothed with the file name gppdxxx or densrawxxx 3. global population (counts, smoothed) with the file name gppycxxx or countsmooxxx 4. global population (population density, smoothed) with the file name gppycpdxxx or denssmooxxx For more information, link to "http://www.ciesin.org/datasets/gpw/globldem.doc.html"
GPW
G - I