I am trying to make a soil erosion risk model using raster overlay in ArcGIS Pro.
I have calculated soil erosion risk in raster calculator by combining the following risk factor rasters:
The risk from these factors is calculated based on the following table:
From this I derived 5 risk rasters which have been reclassified as follows:
I have then added these into a new raster to make a risk model (values ranging 1-5):
The next step requires this model to be moderated based on a landcover raster(with risk categories ranging from 0 to 4)
The relationship of the risk values in these two rasters is determined by the following table:
What operation is required in raster calculator to achieve this result?
Following the last answer here is what I have after multiplying the original risk layer by 10 and then creating a new raster adding (+) the multiplied risk layer to the land category layer:
I then reclassify as per the screenshots below:
This however seems to not change the risk categories compared to the original risk layer, as the count and location of pixels is identical between the 2 layers, so there has been no moderation of a class 5 to class 3 based on the land category layer if this makes sense, I must be doing something wrong here, could you point me in the right direction please?