tag:blogger.com,1999:blog-2220966763638300672.post5550166817083879796..comments2023-07-29T05:11:23.558-04:00Comments on Climate Observations: Has Global Warming Accelerated?Bob Tisdalehttp://www.blogger.com/profile/15462377647970214137noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-2220966763638300672.post-34147961752877034532010-11-06T07:32:05.767-04:002010-11-06T07:32:05.767-04:00well post, i was looking the same information to w...well post, i was looking the same information to <a href="http://www.mastersdissertation.co.uk/essays/global_warming_essay.htm" rel="nofollow">write global warming essay</a>.Global Warming Essayshttp://www.mastersdissertation.co.uk/essays/global_warming_essay.htmnoreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-39254633608740724702009-08-22T03:46:42.549-04:002009-08-22T03:46:42.549-04:00RACookPE1978: You wrote, "We see here two ri...RACookPE1978: You wrote, "We see here two rises - each about 30+ years long - about equal to other..."<br /><br />Except that if we look at a dataset that starts in the 1850s, we see a dip from ~1870 to ~1910 and a rebound from ~1910 to ~1940.<br />http://bobtisdale.blogspot.com/2008/11/dip-and-rebound.htmlBob Tisdalehttps://www.blogger.com/profile/15462377647970214137noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-42742899010385853132009-08-21T23:57:01.861-04:002009-08-21T23:57:01.861-04:00Bookmarked - Though in mid-August!
This, however,...Bookmarked - Though in mid-August!<br /><br />This, however, brings back the question: What was the SST trend - if we can determine at all - for the rise in temp's since the middle of the LIA until the early 20th century?<br /><br />We see here two rises - each about 30+ years long - about equal to other, but "below them" (or underneath them perhaps - is the long-term overall increase that apparently continues today..RACookPE1978http://www.freerepublic.comnoreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-48079475032725414922009-03-20T11:01:00.000-04:002009-03-20T11:01:00.000-04:00Walcome and Thanks, BettyWalcome and Thanks, BettyBob Tisdalehttps://www.blogger.com/profile/15462377647970214137noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-37244725303377130062009-03-17T09:26:00.000-04:002009-03-17T09:26:00.000-04:00Bhuvan Chand: If I may ask, how does your comment...Bhuvan Chand: If I may ask, how does your comment pertain to the subject of the post? In this post I illustrated that the rise in global SST has not accelerated. I do understand it’s a blogger’s prerogative to comment off topic, but I do not discuss and have never discussed economic issues on this blog, nor do I intend to allow them to be discussed. Any future comments on this topic or similar topics will be deleted.<BR/><BR/>RegardsBob Tisdalehttps://www.blogger.com/profile/15462377647970214137noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-91437741375290459562009-03-16T13:30:00.000-04:002009-03-16T13:30:00.000-04:00I apologize, I meant figure 11, that's the one wit...I apologize, I meant figure 11, that's the one with the exponential increase. Thanks for the explanation though.<BR/><BR/>JulieAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-69932301696867648202009-03-16T10:27:00.000-04:002009-03-16T10:27:00.000-04:00Julie: You’ve confused me. Depending on how you ...Julie: You’ve confused me. Depending on how you view Figure 10, it might show a “linear” increase with an anomalous rise and fall in the 1930s and 40s. But if we’re looking at only the period of 1910 to 1942, then the curve in Figure 10 does look exponential. That rise in the 30s and 40s: there was a significant multiyear El Nino around 1940 that can’t simply be erased by subtracting out scaled NINO3.4 SST anomalies. And after that, in 1945-46, there’s a known problem with the SST data. There's a significant drop that's an "accounting" problem. The keepers of the SST data haven’t corrected it yet. <BR/><BR/>Figure 11, on the other hand, shows an exponential rise. It’s the Simulation of Global Temperatures by the GISS (James Hansen's group) Model E GCM. That version has had the volcanic aerosol forcings removed. That's why it simply looks like an exponential curve.Bob Tisdalehttps://www.blogger.com/profile/15462377647970214137noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-31648137683649588492009-03-16T07:35:00.000-04:002009-03-16T07:35:00.000-04:00Nice article, very good explanation of the graphs....Nice article, very good explanation of the graphs. I wonder though how can the temperature be rising exponentially in figure 10. All the other graphs show linear rising so that would mean the exponentiality was caused by the volcanic aerosols, but that doesn't seem right. <BR/><BR/>Take care, JulieAnonymousnoreply@blogger.com