Based on date, time, and location inputs, it provides sun elevation and azimuth angles, and sunny day solar direct and diffuse radiation. (builditsolar.com)
Quite off the mark, surface temperatures are mostly average because there is still some ice reflecting sunlight, but sunlight is very intense due to low cloud extent and high sun elevations, and does not show immediately above the ice, but further up. (realclimate.org)
The tricky bits as I see it are: issues of glare for passersby / neighbors; working out what hours to deploy it on my roof (or may be to shade my lawn in the middle of a summerâ s day, etc); I would have to work out sun elevations, hours of sunlight in my area, etc to determine how much visible light should be reflected; and then finally express this as a negative forcing in W / metre2 to be offset against my presumed calculated positive forcing due to my familyâ s emissions of GHG, etc.. (realclimate.org)