I am using the tool Area Solar Radiation in ArcMap10 to analyse DEMs of parts of a city (area equivalent to a neighbourhood). My goal is to calculate the average annual solar irradiation (Wh/m2) on the roofs of buildings. When I run the tool, the output I get is a raster with the global radiation (direct + diffuse) for each raster cell of the input DEM. So far, so good!
I can click on a raster cell and see the value of the radiation. But (question A) how can I 'extract' all the values in a way that I can use them (e.g. in a table per building or for the whole study area) and calculate the average solar radiation?
And (question B) how can I export the pretty coloured image in a useful format? (I tried exporting it as .tiff and got a black & white image).