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ArcGIS Raster Comparison

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#1
Suganthan

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Hi all,

I have a basic question in comparing two rasters in ArcGIS.

My first raster is a dem- elevation data and the second one is land cover information. I just want to know how many cells of different land use classes were falling in particular intervals of my elevation data. Or simply within two categories - above and below 500m msl, what are the land use types and their frequency.

I tried some zonal statistics in ArcGIS but it always gives the total number of cells of a particular raster but ignores the values of the second raster.

Thanks in advance

#2
Crischan

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Hm, zonal statistics should do the trick... Have you reclassified your elevation data into the categories you want to have, e.g. have all values < 500m reclassified to value 1 and so on?
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#3
frax

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First reclass your DEM and then do a combine. The attribute table (the VAT-table) of the raster would then contain the information you are looking for - counts of cells in all possible combinations of the classes.
Hugo Ahlenius
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