November 4, twh.
The FLR radiometers were not cleaned as often at the radiometers outside the crater and the upfacing pyranometer had periods of several days when it was contaminated with bird droppings while the SPN1 reportedly was not. The question arises, how well did the SPN1 measure global incoming shortwave radiation?
I begin with a comparison of the SPN1 global radiation to Rsw.in from the K&Z CM21 at NEAR and FAR.