Jump to content
GMS, SMS, and WMS User Forum

modelling drainage using DTM's


olidaf
 Share

Recommended Posts

Has anybody experience with defining drainage using a DTM (Digital Terrain Model)? I have 2D grid data of a DTM and would like to use this 2D grid data to define elevation of a drainage for my model. Can anybody describe a way to do this?

kind regards

Olivier

Link to comment
Share on other sites

Has anybody experience with defining drainage using a DTM (Digital Terrain Model)? I have 2D grid data of a DTM and would like to use this 2D grid data to define elevation of a drainage for my model. Can anybody describe a way to do this?

kind regards

Olivier

You should try WMS. It has all sorts of tools for doing this kind of thing.

Link to comment
Share on other sites

Has anybody experience with defining drainage using a DTM (Digital Terrain Model)? I have 2D grid data of a DTM and would like to use this 2D grid data to define elevation of a drainage for my model. Can anybody describe a way to do this?

kind regards

Olivier

Hi -- I'm using Digital Elevation Model (DEM) data which is in a XYZ format. We used a GIS process to take the mean of the DEM data for each model cell. Here's the procedure:

1) Brought the data into GMS as 2-D Scatter Data.

2) Interpolate to a TIN of the area you want to model. The TIN's can be created from your Map Coverages.

3) Assign the land surface altitudes of the stream arc nodes to the TIN altitudes.

4) Map to MODFLOW.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...