u}?from??sayeed%weirich320?geography?uiowa?edu??at?Mar?7??95?12?35?41?pm@bnr.ca
Reply-To: grassu-list@max.cecer.army.mil
NNTP-Posting-Host: ux1.cso.uiuc.edu
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Originator: daemon@ux1.cso.uiuc.edu
I have been using the ANSWERS on GRASS for a drainage basin, for which I
have data with various levels of resolution. When I tried to run the
model with a 8m X 8m grid cell size, the program stops execution after
printing rainfall, soil, cover, and channel data in the answers_ouput
file. The output file ends with the following error message:NO. OF ELEMENTS EXCEEDS DIMENSION AT ELEMENT 55, 56
I've modified the version of ANSWERS I'm running to accomodate
more cells. It's fairly easy to modify the ANSWERS Fortran
code and recompile it -even if you're not very familiar
with Fortran. The r.answers interface will not
be affected.
I would not recommend using an 8m by 8m grid size
for this model. Some of the model assumptions
become VERY questionable when you get to such a
small grid cell size. Grid cell sizes in the
50m to 200m range are more appropriate.
You can reach David Beasley at beasley@bae.ncsu.edu
Bernie