In order to run a hydrologigal analysis I'd like to to merge two raster datasets (DEM and buildings) to get as result one raster with only the highest values (elevations) of both. In other words: To overlay the DEM with the buildings and to use the buildings-values whenever possible.
I'm working with ArcGIS 10.4 (ArcMap/ArcScene) for this.
I've got the following input data:
- DEM as raster
- builidungs as raster (with Null-values outside the buildings)
I was wondering if its possible to use an IF-statement in the Map Algebra Tool, but didn't get the right syntax or maybe there is a better way to do it. The If-statement could be similar to this: If ("buildings1" IS Null, "DEM1")