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I have created slope and aspect from a DEM layer, I reclassed both slope and aspect into categories (for example slope is now a value of 1-6) and turned them into polygon layers where each polygon has a different slope value etc. At the moment they are separate so I have polygons for aspect and polygons for slopes and I want to end up with one polygon layer where each polygon has a slope value and an aspect value, does anyone know how I might do this?

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    May I ask why? Of course you can do this, but in most cases it is more efficient to keep your analyses as raster. If you edit your question to add a bit more context we might be able to suggest alternatives.
    – user2856
    Commented Aug 25, 2016 at 0:46
  • They are polygon layers so I can use them for zonal statistics to find out the density of vegetation present
    – ah9
    Commented Aug 25, 2016 at 9:40
  • If you are using them for zonal stats, you definitely don't want to convert to polygon as the polys will get converted back to raster in the zonal stats function.
    – user2856
    Commented Aug 25, 2016 at 9:45
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    Suggest you look at the "combine" tool. I'll add a proper answer tomorrow if no one else has.
    – user2856
    Commented Aug 25, 2016 at 9:52
  • Thankyou for all the help but I have managed to do it now
    – ah9
    Commented Aug 25, 2016 at 10:12

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You could try the Union tool from Analysis tools->Overlay tool set. Here is a description on how it works.Although the link on how it works is for ArcGIS Pro, it also applies for ArcGIS Desktop.

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  • Thankyou, this is exactly what I needed
    – ah9
    Commented Aug 25, 2016 at 9:40

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