[GRASS-user] Animated water flow simulation

GRASS GRASS user
1

Dear all,

Given a DEM, I would like to simulate the flow of raining water (and possibly the resulting erosion) over time, and for this it would be great to create an animation showing this evolution. I found a few examples of such movies using GRASS data online, but no explanation or tutorial on the best way to actually do it. Could you please just kindly tell me how I should proceed to achieve this?

Thank you very much for your help!

Sincerely yours,
Emma

2

On Sun, Nov 7, 2010 at 2:45 PM, Emma <emma@seleeg.org> wrote:

Dear all,

Given a DEM, I would like to simulate the flow of raining water (and
possibly the resulting erosion) over time, and for this it would be great to
create an animation showing this evolution. I found a few examples of such
movies using GRASS data online, but no explanation or tutorial on the best
way to actually do it. Could you please just kindly tell me how I should
proceed to achieve this?

Likely, the great distance learning lectures of Helena Mitasova contain
related steps:
http://courses.ncsu.edu/mea582/common/GIS_anal_schedule/index.html

Markus

3

I am a student of Dr. Mitasova. Her course materials are excellent for learning how to determine water flow and erosion but not how to do the animation. That, however is covered in her book GrassBook http://www.grassbook.org/. Chap 5.

On 11/7/2010 8:53 AM, Markus Neteler wrote:

On Sun, Nov 7, 2010 at 2:45 PM, Emma<emma@seleeg.org> wrote:

Dear all,

Given a DEM, I would like to simulate the flow of raining water (and
possibly the resulting erosion) over time, and for this it would be great to
create an animation showing this evolution. I found a few examples of such
movies using GRASS data online, but no explanation or tutorial on the best
way to actually do it. Could you please just kindly tell me how I should
proceed to achieve this?

Likely, the great distance learning lectures of Helena Mitasova contain
related steps:
http://courses.ncsu.edu/mea582/common/GIS_anal_schedule/index.html

Markus
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4

On Mon, Nov 8, 2010 at 2:32 AM, Suzanne <sector@softwave.com> wrote:

I am a student of Dr. Mitasova. Her course materials are excellent for
learning how to determine water flow and erosion but not how to do the
animation. That, however is covered in her book GrassBook
http://www.grassbook.org/. Chap 5.

An Animations HOWTO is available here:
http://grass.osgeo.org/wiki/Movies

Markus