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bobosola / PHP-SRTM

PHP code to obtain elevation data for lat & lon locations from SRTM data files
https://www.osola.org.uk/elevations/
The Unlicense
10 stars 3 forks source link

Where to download the data for the entire world #4

Open christianb35 opened 2 weeks ago

christianb35 commented 2 weeks ago

All links posted seems to be down

bobosola commented 1 week ago

Hi, sorry about that, I haven't looked at this for a couple of years. It seems that the 90m (3 arc second) GEOTIFF (.tif) files have largely been replaced by .HGT files, such as you can get from https://search.earthdata.nasa.gov/search (you have to create a login to use that site, but it's free). Of course that would require a big re-write because my code uses the original SRTM GeoTIFF (.tif) files. The CGIAR CSI site appears to have moved to https://csidotinfo.wordpress.com/data/srtm-90m-digital-elevation-database-v4-1/ which has a contact email of csi@cgiar.org. Perhaps if you email them they could give you a source to access the original GeoTIFF files? I will annotate the README accordingly.