NED data in GridFloat format

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.

Downloading

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/

Using with Pathloss 5

Once the files have been downloaded use the following proceedure to set up with Pathloss 5

Unzip the files to a common directory. Each ZIP file will contain a directory and with in the directory a FLT file and