Monthly Archives: October 2010

Atlas of potential vegetation of Ethiopia

In July this year a new vegetation map of Ethiopia was published by the Royal Danish Academy of Sciences and Letters (Det Kongelige Danske Videnskabernes Selskab).

 

Cover of the Atlas of potential vegetation of Ethiopia

 

The atlas is based on many years of field work by the two senior authors ( Ib Friis and Sebsebe Demissew) Continue reading

Color tables in GRASS GIS – using the command line

In GRASS to define the colors of a raster you normally go to the menu Raster → Manage colors → Color tables. Alternatively type r.colors on the command line. Both will open a screen where you can select the raster layer and one of the many pre-defined color tables. There are a number of additional options, most are self-explanatory, otherwise check out the help function.

Instead of a pre-defined color table, you can also use a rules file Continue reading