How to calculate statistics for several sub-catchments (polygons) in the same time?

Question

I have a shapefile of groundwater management zone which is composed of 40 sub-catchments (40 polygons). I'd like to calculate the max., min. and mean elevation for each sub-catchment. Would you please let me know if there is any way to calculate all of these parameters (for all of the sub-catchments) using the shapefile and the DEM?

score 5 · Accepted Answer · edited Dec 23 '13 at 08:07

5

spatial analyst > zonal statistics as a table

In the environment, make sure that you use the same cell size for the analysis as with your DEM. http://resources.arcgis.com/en/help/main/10.2/index.html#//009z000000w8000000

edited Dec 23 '13 at 08:07

answered Dec 23 '13 at 08:05

radouxju

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I would also recommend that you have Snap Raster environment set too, just in case the catchment polygons were generated from some other dataset. – Hornbydd Dec 23 '13 at 13:37

How to calculate statistics for several sub-catchments (polygons) in the same time?

1 Answers1