tag:blogger.com,1999:blog-2220966763638300672.post7981524260369669265..comments2023-07-29T05:11:23.558-04:00Comments on Climate Observations: GISS Model E Climate SimulationsBob Tisdalehttp://www.blogger.com/profile/15462377647970214137noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-2220966763638300672.post-68772616558258785482008-09-13T16:31:00.000-04:002008-09-13T16:31:00.000-04:00TSI is one measure of solar activity. Leif points ...TSI is one measure of solar activity. Leif points out that his work either means the sun has little effect on climate, or it is even more sensitive to small solar changes than we currently think. TSI is the same now as it was 107 years ago.<BR/><BR/>Looking at yearly averaged sunspot numbers as a measure of solar activity - we can see the Maunder, Sporer and Dalton minimums, plus a big rise to the 1950s, followed by a fall that still remains above all but the 1950s peak - rather like a pan of water on the hob heated until it boils, then turned down to simmer.<BR/><BR/>Regards,<BR/><BR/>Paul BiggsPaul Biggshttps://www.blogger.com/profile/08842954342670110628noreply@blogger.com