Hi,
I'm currently in charge of an AWS which holds a diffuse radiation shield. I am looking to find some information on adjusting the shield, specifically i need to know how often to move the shield down as the sun descends/ascends. I believe there should be some information out there which ties someones long and lat to how often and how much the shield will need to be moved.
I've attached an image of the shield, it is set to the correct angle but it needs to be moved down as the sun descends. It has ruffly 36 or so marks on it, separated about 1 cm each.
If anyone can provide a link to some info that would be great, i think we've got a book on the way but it'd be good to get this fixed asap.
Thanks
orfeo
