I'm working with the Area Solar Radiation tool of the Spatial analyst. I am using Lidar data for a part of Netherlands and am running the model for the whole year with monthly interval and I get highest insolation values for the month of November instead of July or August. I tried it a couple of times and also using a python script but still the same problem. Could anyone help me in explaining this?
This "52.1 N Latitude" is not a coordinate system.
Is the data in a projected coordinate system? This is recommended for this tool (and for most other analytical tools. If it is projected, then you don't have to specify a mid latitude for the data, because the system will already know that.
