Difference between revisions of "NED data in GridFloat format"
From PathlossWiki
| Line 4: | Line 4: | ||
where XX = the latiude in degrees and YYY = longitude in degrees | where XX = the latiude in degrees and YYY = longitude in degrees | ||
| − | + | The files are available in two resolutions: | |
| − | 1" GridFloat files: | + | 1" GridFloat files (covers North America): |
ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/NED/1/GridFloat/ | ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/NED/1/GridFloat/ | ||
| − | 1/3" GridFloat files: | + | 1/3" GridFloat files (covers the USA): |
ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/NED/13/GridFloat/ | ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/NED/13/GridFloat/ | ||
Revision as of 12:15, 11 March 2015
This is the same NED data except in Grid float format. These files are twice as big as the BIL format. They will run a bit slower for generating network backgrounds. The files are named by the North West corner having the following syntax:
NXXWYYY.zip where XX = the latiude in degrees and YYY = longitude in degrees
The files are available in two resolutions:
1" GridFloat files (covers North America):
ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/NED/1/GridFloat/
1/3" GridFloat files (covers the USA):
ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/NED/13/GridFloat/
