Input landscan data for population density

[thomaspeugeot]

As is : population density data is from CIESIN. Free but inacurate in some places.

To be : use landscan. Format is ESRI

[thomaspeugeot]

https://github.com/jonas-p/go-shp

[thomaspeugeot]

[thomaspeugeot]

[thomaspeugeot]

https://landscan.ornl.gov/sample-data

cyprus is available as a sample ownload the sample data file sample_LS2016_cyprus.zip” (52KB) Open ESRI ArcMap Click the “add data” button Select the “cyprus_2016.lyr” layer file

[thomaspeugeot]

gdal_translate -sds -a_nodata 0 -ot Int32 -of AAIGrid /Users/thomaspeugeot/tmp/Haiti-2014/Population/lspop2014/ "/Users/thomaspeugeot/tmp/hti.asc"

special thks to Guilhem Vellut

[thomaspeugeot]

problem : the as-is grump-reader only takes density data organized according to CIESIN. That is a directory hti_grumpv1_pcount_00_ascii_30 with inside a file htiup00ag.asc. also, the no value is different "-2147483647" instead of 0

go run grump-reader.go -country=hti -tkvdata=/Users/thomaspeugeot/tmp

pop total -110855243345056 ????

[thomaspeugeot]

It worked for haiti

[thomaspeugeot]

With the runtime server, locations seems one degree west

[thomaspeugeot]

With the runtime server, locations seems one degree west by looking into the original file, one sees xllcorner -74.483333333334 yllcorner 18.025000000000 wetther the conf.hit.coord is

"XllCorner": -74,
"YllCorner": 18