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TerraHidro 5 - Console applications

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Last stable release
ThConsole-5.0.1-win64.exe

Most recent version
ThConsole-5.1.0-win64.exe

Change Log

5.0.1

  • Fixed the bug that generates a blank drainage raster.

Simple Example

Imagine that you have the DEM of Amazon basin on the file “C:\data\amazon_dem.tif”.
And you want to extract the drainage network using the TerraHidro 5 console applications.

1- The first step is to generate a pitless DEM from the input DEM.

C:\data>th removepits amazon_dem.tif amazon_pitless_dem.tif

2- The second step is to generate the D8 flow directions grid from the pitless DEM.

C:\data>th d8 amazon_pitless_dem.tif amazon_d8.tif

3- The third step is to generate the contributing area grid from the D8 flow directions grid.

C:\data>th d8ca amazon_d8.tif amazon_contributing_area.tif

4- The forth step is to generate the drainage network grid from the contributing area grid.
Here you will need to set the threshold value of contributing area.

C:\data>th d8drainage amazon_contributing_area.tif amazon_drainage.tif 1000000

5- The final step is to generate the drainage network vector file from the grid file.

C:\data>th d8drainagev amazon_drainage.tif amazon_drainage.shp

Other Applications

To know all the possiple console applications just type “th” on a console.

Full List:

carvev - Finds and carves flat areas from a DEm in a V-shaped format.

simplepits - Try to remove pits by filling the pit cell. The pit is removed only if this procedure do not generate a new pit. Warning: Not generates a pitless DEM.

pfs - Remove all pits using the PFS algorithm to carve a path to an outlet cell. Generates a pitless DEM.

removepits - This is the preferred procedure to remove all pits from a DEM. This is equivalent to perform the carvev, simplepits and pfs precedures in sequence. Generates a pitless DEM.

d8 - Generates the D8 flow directions grid from a pitless DEM.

d8ca - Generates the contributing area grid from a D8 flow directions grid.

d8drainage - Generates the drainage network grid from a contributing area grid.

d8drainagev - Generates the drainage network vectors from a drainage network grid.

fill - Fills voids of a DEM data (eg SRTM 30m) using a reference DEM data (eg SRTM 90m).

Contact

Write to TerraHidro Team at terrahidro@dpi.inpe.br

Previous Version

Copyright (C) 2008-2014 National Institute For Space Research (INPE) - Brazil.

TerraHidro is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

TerraHidro is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

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Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/>

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