Utility to remove DEM Depressions?

[John Talcott]

In article <talcott-0905951537090001 at jct.trg.saic.com>,
talcott at trg.saic.com (John Talcott) wrote:

> I checked the GRASS archives and could not find a utility to remove
> depressions from digital elevation model data. Does anyone know
> where I can get one? This tool is especially useful for those of
> us running hydrology applications in conjuction with GRASS. You can
> reply to this message or email me directly. Thanks in advance!

Thanks for the e-mail help.
Here are two of the e-mail responses I received:

Date: Wed, 10 May 95 09:17:13 +0200
From: tr at grana.ivb.unit.no (Trond Rinde)
Sender: grass-lists-owner at moon.cecer.army.mil.
Reply-To: grassu-list at moon.cecer.army.mil.
Precedence: Bulk
To: talcott at marge.trg.saic.com (John Talcott)
Subject: Re: Utility to remove DEM Depressions?

About removal of depressions in DEM's:

In the "Related" part of GRASS is a collectione of programs for distributed 
hydrological modeling (its called "ANSWERS"). One of these programs is called 
"r.fill.dir" and should create depressionless DEM's.  

I have not tested it but it might be what you are looking for. The source is 
located under /grass/grass4.1/release/related on the moon.


Trond Rinde

Date: Wed, 10 May 1995 07:46:22 -0400
From: Stan Jacobs <stan at ocean.rutgers.edu>
Sender: grass-lists-owner at moon.cecer.army.mil.
Reply-To: grassu-list at moon.cecer.army.mil.
Precedence: Bulk
To: talcott at marge.trg.saic.com
Subject: DEM Depressions


John,
        In the rsc.src contributed code directory distributed with GRASS
there should have been some code on a water quality assessment tool called
WRAT.  One of the modules within this model, accepts a DEM as input and
outputs an idealized DEM with no pits or depressions.                

        If you do not have this code and cannot find it let me know and
I will try to get you the binary.              

Stan Jacobs
Natural Resources Conservation Service  USDA
County Courthouse
P.O. Box 900
Morristown, NJ 07963-0900
Phone(201)538-1552
Fax(201)285-8345
e-mail stan at ocean.rutgers.edu

-- 
John C Talcott talcott at trg.saic.com
Science Applications Intl. Corp. (SAIC)
10260 Campus Point Drive
San Diego CA 92121
(619) 546-6447