[PA Engineer]

I have to compile my data from my Davis weather station for the last four years. I have noticed a dramatic drop off in solar radiation as compared to the previous four year period. I will have to see how it compares to other Davis recordings in the online community. Your graph goes to 2007 and (I can confirm from my station) so far this year (2008) those numbers appear to be trending much lower.

[JustDoItAlways]

Up-to-date PMOD composite Total Solar Irradiance data for the last three cycles is charted at this link.

http://www.woodfortrees.org/plot/pmod/mean:12

The SORCE solar instrument is not recording the extent of drop-off as PMOD but is still trending lower indicating solar cycle 23 is not over yet.

http://lasp.colorado.edu/cgi-bin/ion-p?page=input_data_for_tsi.ion