Evaluation of the following parameters is presented almost in real time: Shortwave Surface Downward Flux Surface Downward Photosynthetically Active Radiation (PAR) Observation from the SURFRAD network are used. The most recent observations are available for the following days: Sunday Monday Tuesday Wednesday Thursday Friday Saturday Day: 05/12/2013 05/13/2013 05/14/2013 05/15/2013 05/16/2013 05/17/2013 05/18/2013 Day: 05/19/2013 Evaluation of Surface Shortwave Downward Flux:

Evaluation of Surface Downward Photosynthetically Active Radiation