topic Re: Change values within the Land Use raster in ArcGIS Pro Questions

Change values within the Land Use raster

Willem_Bouw — Wed, 13 Dec 2023 13:11:20 GMT

Hello all,

I'm stumbling upon a challenge. My aim is to change some areas within the Land Use/Land Cover (LULC) raster that I'm currently using, but I have no idea how. Allow me to visualize the situation to make my issue a bit more clear.

So this map shows forests (green, obviously) and pastures for cattle (yellow). The pastures in the red circle are planned to be converted into a more sustainable type of cattle ranching. My aim is thus to give these sustainable pastures a different value (not green, not yellow, but lets say brown). How can I use ArcGIS Pro to change my current LULC raster and add a new value to a specific geographical area/specific pixels? Is this even possible at all?

Thank you in advance!

Re: Change values within the Land Use raster

JohannesBierer — Wed, 13 Dec 2023 13:36:15 GMT

In my opinion you need different steps. First clip the raster to an area with the wanted new values, reclassify the raster to the new value, create a new LULC raster with the con tool:

https://pro.arcgis.com/en/pro-app/3.1/tool-reference/spatial-analyst/con-.htm

Re: Change values within the Land Use raster

Willem_Bouw — Wed, 13 Dec 2023 14:09:14 GMT

Thank you, in my head I never put those steps together but yes that makes sense! Regarding clipping the right areas, are you aware of any tool that can help me clipping specifically the yellow/pasture areas in the LULC raster? Or do I manually need to create a polygon.

Re: Change values within the Land Use raster

JohannesBierer — Thu, 14 Dec 2023 14:26:58 GMT

Think you will need a polygon:

https://pro.arcgis.com/en/pro-app/latest/tool-reference/data-management/clip.htm