Tell me more ×
Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.

Working in ArcMap 10, I have a number of raster layers that are derived from a DEM (terrain attributes, some zonal statistics layers, flow accumulations). I have a point layer that contains about 25 points that correspond to features I am interested in on the landscape. As an early step, I would like to pull data from each of the raster layers, but I am only interested in the raster values that correspond to each of the points from my point shapefile. Essentially I want to make a big table that lists many attributes (elevations, stream power index, flow accumulation, etc.) for each of the 25 points so that I can try to determine if there are relevant trends amongst the 25 points. How can I do this?

share|improve this question

1 Answer

up vote 2 down vote accepted

This is super easy, assuming you have the Spatial Analyst extension. Use Extract Multi Values to Points:

Extracts cell values at locations specified in a point feature class from one or more rasters, and records the values to the attribute table of the point feature class.

This is just a modified version of Extract Values to Points that's designed to work with multiple rasters.

Note that both of these tools modify the point feature in-place and do not create a new point feature class as output. So you may want to copy your point feature class ahead of time.

share|improve this answer
Thanks! I do have Spacial Analyst, so this will be a breeze. That's exactly what I want; I always assume these things are possible, but I can never figure it out on my own... much appreciated – user15636 Feb 28 at 16:45
Glad to help. If you are satisfied, you should mark the answer as "Accepted" to close out the question. – dmahr Feb 28 at 16:58

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.