[GRASSLIST:4129] raster import help

[Kevin Slover]

I am working with data that uses the WGS84 geoid.  I am needed to
convert this to MSL using, from what I have read, the EGM96 grid.  I
have downloaded the grid from NIMA, and am trying to figure out how to
import this into GRASS.

The grid is set up with 1st line being the header file, specifying N/S
E/W and spacing.  Then the data.  Any thoughts, ideas on how to get this
in.  I tried r.in.gdal, but it says that the format cannot be
recognized.

Also, just to be safe, am I going about this the right way??  I am
thinking about creating the grid, then using r.mapcalc to compute MSL.
Any thoughts on this??

Thanks...


--
LTJG Kevin Slover, NOAA
GIS Specialist/Oceanographer
NOAA/TPC/TSB/Storm Surge Unit
11691 SW 17th Street
Miami FL  33165

W (305) 229-4456