I am attempting to add together three layers of data (see attached image) that all have the same extent, cell size, projection, etc. When I add them together using the raster calculator ("2015_95" + "2014_95"+"2013_95") the only output is where the three layers overlap.
What I am trying to get are values ranging from 1-3, 1 where there is only one year, 2 where there are 2 years that over lap and 3 where all years overlap.
Does anyone know what I am doing wrong??