3 ms·
Odd, I downloaded and used all the 1 arc second data back in 2007. How is this new? They originally released two products, the 1" and 3" data. The original 1"
by twistedpair 12y ago
Odd, I downloaded and used all the 1 arc second data back in 2007. How is this new? They originally released two products, the 1" and 3" data.
The original 1" data IS 30m lateral resolution
(12,742,000m * pi)/(360 deg * 3600 arcsec/deg) = 30.88m
Odd that they're now naming releases after meters and not the previous arc seconds.
- michael_h 12y agoThis new 1" release is for the entire planet, not just the US.
- twistedpair 12y agoTouche. The link of interest would then be: http://dds.cr.usgs.gov/srtm/version2_1/SRTM1/ http://dds.cr.usgs.gov/srtm/version2_1/SRTM1/ Where the current 7 regions are: http://dds.cr.usgs.gov/srtm/version2_1/SRTM1/Region_definition.jpg http://dds.cr.usgs.gov/srtm/version2_1/SRTM1/Region_definiti...