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Regarding the uniform field of values that fill each population subregion, my hope when I downloaded the 2.5 minute GPWv3 population grid (95ag) file was that they would indicate the population in that 2.5 minute cell, since the documentation refers to 2.5 minute resolution. However, I suspect that they actually represent the sum of the population in the total area of the subregion. What do the values in each cell actually represent?

The cells in the population grid (p95ag) represent the number of persons in the individual cell, not the administrative unit. For example, if an administrative unit with 100 persons contained exactly 100 cells, each cell would be assigned a population value of 1 person.

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