tag:blogger.com,1999:blog-2220966763638300672.post1804345629856842482..comments2023-07-29T05:11:23.558-04:00Comments on Climate Observations: PRELIMINARY August 2010 SST Anomaly UpdateBob Tisdalehttp://www.blogger.com/profile/15462377647970214137noreply@blogger.comBlogger11125tag:blogger.com,1999:blog-2220966763638300672.post-8822229803618735472010-09-02T21:11:07.031-04:002010-09-02T21:11:07.031-04:00I guess I'm interested in the lagged response ...I guess I'm interested in the lagged response as well.<br /><br />I note that the AMO region is at its highest level in the record right now (36 weeks after the peak of the Nino 3.4) but it didn't start declining until 39 weeks after the 1997-98 El Nino peak and has taken up to a year in other El Ninos (but it has also been less than 39 weeks). I couldn't find a solid tangible correlation before so dismissed it but obviously that was a mistake.Bill Illisnoreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-53278354075962950132010-09-01T12:22:51.029-04:002010-09-01T12:22:51.029-04:00DB: Thanks for the link to Evan and MukhopadhyayDB: Thanks for the link to Evan and MukhopadhyayBob Tisdalehttps://www.blogger.com/profile/15462377647970214137noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-74312235684754699132010-09-01T12:04:00.151-04:002010-09-01T12:04:00.151-04:00HR: I've never attempted to lag the trailing ...HR: I've never attempted to lag the trailing curves of NINO3.4 and global SST anomalies during the transition from an El Nino to a La Nina, so I can't answer your questions. Give me a week or so. I've got two other posts I'm trying to finish, but I'm also interested in seeing that lag. <br /><br />I have a feeling it's going to vary per ENSO event but we shall see.<br /><br />RegardsBob Tisdalehttps://www.blogger.com/profile/15462377647970214137noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-8344198545383116372010-09-01T10:18:17.048-04:002010-09-01T10:18:17.048-04:00Bob, the Foltz and McPhaden paper had dust data fo...Bob, the Foltz and McPhaden paper had dust data for the Atlantic back to 1980. A new paper by Evan and Mukhopadhyay goes back to 1955:<br /><br />African dust over the northern tropical Atlantic: 1955–2008<br />http://trane.evsc.virginia.edu/Publications_files/2010_Evan_Mukhopadhyay.pdf<br /><br />DBAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-83546733662721277902010-09-01T00:32:16.358-04:002010-09-01T00:32:16.358-04:00Bob what is the lag time between the Nino SST drop...Bob what is the lag time between the Nino SST drop and global SST drop? When can we expect the same large drop off in global SST as seen around week 35 of the 1998 data. Will the drop be similar?HRnoreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-26671653548357797432010-08-31T16:05:08.147-04:002010-08-31T16:05:08.147-04:00Jurinko: The Reynolds OI.v2 SST data used in this...Jurinko: The Reynolds OI.v2 SST data used in this post is satellite based also. Different satellite technology. And I assume you're talking about Dr. Spencer's posts. Keep in mind that he only includes the latitudes of 60S-60N, while these global datasets go pole to pole. I'll try to remember to include a graph of 60S-60N in my next update.Bob Tisdalehttps://www.blogger.com/profile/15462377647970214137noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-89233118164575285592010-08-31T15:42:46.778-04:002010-08-31T15:42:46.778-04:00Interesting, that in the contrary to global SST st...Interesting, that in the contrary to global SST stalling, the satellite SST channel shows very steep and continuing drop, which started in April.Unknownhttps://www.blogger.com/profile/01284441733104541252noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-67303975154364002622010-08-31T11:57:22.739-04:002010-08-31T11:57:22.739-04:00DB: Sorry, I don't recall anything and I don...DB: Sorry, I don't recall anything and I don't believe I have a comparison graph handy of the ICOADS "raw" version versus the Hadley Centre MOHMAT.Bob Tisdalehttps://www.blogger.com/profile/15462377647970214137noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-19097334678323348372010-08-31T11:19:40.382-04:002010-08-31T11:19:40.382-04:00Bob, back in May at Climate Audit there was a comm...Bob, back in May at Climate Audit there was a comment by Steve McIntyre that he thought that NMAT (night marine air temperature) data had some adjustments back in the 1940s.<br /><br />Have you found anything like that?<br /><br />DBAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-62089679572212286122010-08-30T19:48:20.606-04:002010-08-30T19:48:20.606-04:00John: I recall a paper that said it took until the...John: I recall a paper that said it took until the next winter for the Arctic to respond fully to an El Nino. It would take me a while to find it again, unfortunately. <br /><br />There are also the seasonal variations between hemispheres taking place. The hemispheres also have double peaks in response to an El Nino. It's really noticeable in 1997/98 in the Northern Hemisphere:<br />http://i36.tinypic.com/102p3s1.jpg<br /><br />Lots of lagged processes going on.Bob Tisdalehttps://www.blogger.com/profile/15462377647970214137noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-61288399336745193982010-08-30T17:22:48.007-04:002010-08-30T17:22:48.007-04:00Hi Bob -
Thanks so much for the update. Definite...Hi Bob -<br /><br />Thanks so much for the update. Definitely interesting to see the lag in global SST temperatures. <br /><br />Any thoughts on how much of the lag is due to the length of time it takes for the Atlantic to cool in response to the dropping tropical pacific?Johnnoreply@blogger.com