Inputting DEM data into GRASS

John Miller asks:

Let's take one group of files. They consist of 10201 lines of
ascii data, the fields being (separated by spaces):

Longitude Latitude Elevation (as in the following example
            records)
    146.000 19.500 320
    146.005 19.500 313

    The increment in LAT and LONG between data points is 0.005
    degrees.

My question:

    What is the best way to import this data into a GRASS
    mapset? Is my only option to convert the data to a
    format suitable for r.in.ascii?

John,
You can import the data as sites, using s.in.ascii, and then convert it
to raster, using one of the options in s.menu. That's how I did it when
I imported DEM data for an area in British Columbia.

- Katarina

------------------------------------------------------------------------------
Katarina Johnsson e-mail: kjohnsso@alder.pfc.forestry.ca
Advanced Forest Technology Lab phone: (604) 363-6017
Pacific Forestry Centre fax: (604) 363-0775
Forestry Canada
Victoria, BC