tag:blogger.com,1999:blog-2220966763638300672.post5896826651496669682..comments2023-07-29T05:11:23.558-04:00Comments on Climate Observations: Combined Solar and Volcanic Aerosol Effect – Part 2Bob Tisdalehttp://www.blogger.com/profile/15462377647970214137noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-2220966763638300672.post-45075547342686060242008-07-01T22:19:00.000-04:002008-07-01T22:19:00.000-04:00Andrew: Before you jump to conclusions about how f...Andrew: Before you jump to conclusions about how far temperature dropped after the two earlier major eruptions, visit here and check out the discussions of Tambora and Coseguina.<BR/><BR/>http://www.volcanoweather.owlinc.org/<BR/> <BR/>But, yes, I agree that eventually I will have to start looking at EBMs. Right now, I'm using spreadsheets so that anyone familiar with Excel can duplicate what I’ve done. <BR/><BR/>Just now, I found a recent, very detailed South Pacific SST reconstruction that adds another 100+ years to the timeline and captures the time of those two big volcanoes. It should prove enlightening, one way or the other.<BR/><BR/>RegardsBob Tisdalehttps://www.blogger.com/profile/15462377647970214137noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-72334726198197043052008-07-01T19:12:00.000-04:002008-07-01T19:12:00.000-04:00Bob-simple coefficients aren't the best approach t...Bob-simple coefficients aren't the best approach to use here-you need an energy balance model, because it is quite obvious that the responce to early volcanoes in the record which you get here is erroneous-temperatures simply did not drop that much.<BR/><BR/>I recommend following the instructions given by pliny here:<BR/>http://www.climateaudit.org/phpBB3/viewtopic.php?f=4&t=341<BR/>and use the inputs for sensitivity and delay suggested by Douglass and Knox for volcano forcing:<BR/>http://arxiv.org/ftp/physics/papers/0509/0509166.pdf<BR/><BR/>EBMs can be fun to play around with. you may also want to try out how this works out with other forcings.Anonymousnoreply@blogger.com