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How to sum only the surrounding cell values that total to a specified value?

Question asked by davieand on Jun 6, 2018
Latest reply on Jun 6, 2018 by Dan_Patterson

I have a raster containing values for the annual carbon sequestered per cell derived from land use data and the InVEST carbon sequestration tool. This has only 2 unique values, one for tree cover and another for grass/shrubs.


I also have a point shapefile containing 10 large carbon emitting facilities with their annual carbon emissions.


What I want to do is create a new raster that displays the area around each facility that sequesters the same amount of carbon emitted. So for each emitter, carbon emissions value = sum of surrounding carbon sequestration values. I've been trying to do this through focal statistics and the raster calculator, but I can't get an equation to work for me.


Reading through answers to similar problems, I think I may need to use zonal statistics and define a zone using the emissions values? Does anyone have any suggestions?


Thank you in advance for your help,