Monthly Archives: May 2010

Extract raster values to vector points using GRASS GIS

One of my more frequently visited posts is about how to extract data at point locations in QGIS (see here). In GRASS GIS this can be done with the ‘Sample raster maps at point location’ function. This uploads raster values of one or more raster layers at positions of vector points to user-defined columns in the attribute table.

Below a short explanation how to do this using the menu or command line. In the example I have a point vector layer ‘samples’ and the raster layers ‘precipitation’ and ‘temperature’. Continue reading