Volume Calculation of Area for Reservoir Analysis using Grass

[W. Fredrick Limp]

In a reply Jim W. commented
> 
> Yes, GRAASS can be used to do volumetric calculations.  There is no
> straightforward program, but the following outline will start you 
> in the right direction:
---
stuff deleted--
> 
Maybe I'm missing something here but what about r.volume
r.volume             GRASS Reference Manual              r.volume

NAME
     r.volume - Calculates the volume of data "clumps", and
     (optionally) produces a GRASS site_lists file containing the
     calculated centroids of these clumps.
     (GRASS Raster Program)

???????

w. Fredrick Limp
CAST
Fayetteville AR 72701                             fred at kirk.uark.edu