Changing all "Population Density" into "Population Count"
emirhartato opened this issue · 3 comments
Problem
Currently the documentations still represent InaSAFE population raster exposure as "Population Density". But actually, InaSAFE needs "Population Count" and the data from the WorldPop is already represent "Population Count" (number of people in a grid) NOT density (number of people divided by area per grid).
IMO, this is caused by misinterpretation of "pph" and "ppp" units.
Solution
Change "Population Density" (Kepadatan Penduduk) words into "Population Count" (Jumlah Penduduk).
For trainers, please also explain that InaSAFE NEEDS population counts data for exposure. not density.
Reference
cc:
@iyan31 @dewisulistio @adissadis @vasanthi0808 @raniedwianugrah @wulankhairunisa @harrymahar @MAHARDIKA @severinmenard @wonderchook
@emirhartato - a few comments.
InaSAFE uses population data (worldpop) raster in geographic coords - ie WGS84. The cell size is not consistent in area, hence the data are population counts. Number of people per cell. I have asked that the software and docs are updated because any reference to population density (ie people per unit of area) is misleading. We will continue to use the same data and IF. We will attempt to not mislead people.
It's also not as simple as replacing the word density with count. sometimes it will be better to say "people affected" or "number of people affected". Use the word population to refer to the data set but maybe not the impacted people. Use count if you refer to the number of people per cell. ie population data shows the population count per cell. Map shows the number of people affected.
InaSAFE needs nothing different but we have just been using the wrong word (in English)
@jeffhaack should know this also for reviewing purpose