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Record January temp due solely to El Nino?

Started by drowe, 02/21/2010 09:03PM
Posted 02/21/2010 09:03PM | Edited 02/21/2010 09:09PM Opening Post
On this thread:
http://www.astromart.com/forums/viewpost.asp?forum_post_id=702040
where I pointed out that last January was the warmest January of the UAH satellite record, Dave replied changing the subject to "Its called "El Nino""

No doubt that El Nino played a big role in the recent uptick, but can the whole thing be attributed to El Nino?

Well, there's a bit of a problem with that - the El Nino hasn't been a particularly strong one, and no where near as strong as the 1998 El Nino.

Here's a plot of the UAH temps over the whole 32 year UAH record and the Southern Oscillation Index (SOI). Pay particular attention to the spike in temps and SOI around 1998 and then look at where they are now and leading up to now - see the problem? While temps and SOI go up and down at about the same times, the temps have this habit of getting progressively higher - clearly there's more than just El Nino & La Nina going on here...



Note: Excel put the date labels are above zero for SOI but below zero for UAH making the SOI look lower if you use the labels as a reference.