The Global Land One-km Base Elevation (GLOBE) project has developed a 1-km gridded, quality-controlled global Digital Elevation Model (DEM).

How to import GLOBE DEM data into GRASS?

1. GRASS users importing GLOBE precast tiles please read on (then link as you do).

2. Downloading using user-selectable windowing tool (Note: there is a 40MB limit!)
   1. GRASS 5 users importing data with GLOBE's user-selectable windowing tool can use the module (script): r.in.globedem (download script)

      to import GLOBE DEM data. Get the dataset in UNIX format, extract it using "gunzip" and "tar" and use r.in.globedem to import. Define a lat/long location to use GLOBE DEM data with resolution 0:00:30.

   2. GRASS 4.x users wanting to use GLOBE's user-selectable windowing tool should get the dataset in PC binary format, then use the same procedure from option 3 just below, except: after running the UNIX "dd" command, and before running the GRASS "g.region" command, you will want to run the GRASS "r.support" command or otherwise create a cell header file (by entering the number of columns and rows, the number of bytes (2), and the latitude and longitude ranges contained in the .hdr file that comes with your windowed GRASS data).

3. Description from NOAA (precast tiles): GRASS 4.x users please read on here.