>March 2009 SST Anomaly Update

>CORRECTION: The AMO illustration and its description have been corrected to reflect the discussion in The Atlantic Multidecadal Oscillation – Correcting My Mistake.

MONTHLY SST ANOMALY MAP

The map of Global OI.v2 SST anomalies provided by NOMADS is shown below.

http://i42.tinypic.com/2ms27a1.jpg
March 2009 SST Anomalies Map

AMO

As noted in A Recent Drop in the AMO, I am adding the Atlantic Multidecadal Oscillation to the monthly update.

http://i39.tinypic.com/o5vps9.jpg
Atlantic Multidecadal Oscillation

The AMO ended its sizeable drop in March. The questions are:
-How far will it rebound over the next few months?
-And has the AMO reached its long-term peak and will it continue its decline over the next 25 years, or is this recent drop just another perturbation, albeit a large one?

MONTHLY OVERVIEW

The monthly change (March 2009 Minus February 2009) in Global SST anomalies was approximately +0.025 deg C. NINO3.4 SST anomalies continue to fluctuate near to the threshold of a minor La Nina.

NOTES ABOUT THE DATA

The first NINO3.4 SST anomaly graph illustrates raw WEEKLY OI.v2 SST anomaly data that’s centered on Wednesdays, from January 3, 1990 to March 25, 2009. The rest of the graphs illustrate raw monthly OI.v2 SST anomaly data from November 1981 to March 2009.

NINO3.4 SST ANOMALIES BASED ON WEEKLY OI.v2 SST DATA
http://i41.tinypic.com/2e0mmae.jpg
NINO3.4 SST Anomaly (Weekly)
Present Value = -0.545
#####

MONTHLY OI.v2 SST UPDATES
http://i41.tinypic.com/2u76s0z.jpg
NINO3.4 SST Anomaly (Monthly)
Monthly Change = +0.099 deg C
#####
http://i41.tinypic.com/210njvs.jpg
Global
Monthly Change = +0.025 deg C
#####
http://i39.tinypic.com/nn4rpk.jpg
Northern Hemisphere
Monthly Change = -0.031 deg C
#####
http://i41.tinypic.com/wvsneu.jpg
Southern Hemisphere
Monthly Change = +0.068 deg C
#####
http://i42.tinypic.com/rirric.jpg
North Atlantic (0 to 75N, 78W to 10E)
Monthly Change = -0.017 deg C
#####
http://i42.tinypic.com/v4xzfa.jpg
South Atlantic (0 to 60S, 70W to 20E)
Monthly Change = +0.126 deg C
#####
http://i41.tinypic.com/2pow5t0.jpg
North Pacific (0 to 65N, 100 to 270E, where 270E=90W)
Monthly Change = -0.014 Deg C
#####
http://i41.tinypic.com/fc38l4.jpg
South Pacific (0 to 60S, 145 to 290E, where 290E=70W)
Monthly Change = +0.044 deg C
#####
http://i42.tinypic.com/qspq9e.jpg
Indian Ocean (30N to 60S, 20 to 145E)
Monthly Change = +0.047 deg C
#####
http://i40.tinypic.com/f9fcy1.jpg
Arctic Ocean (65 to 90N)
Monthly Change = -0.044 deg C
#####
http://i39.tinypic.com/67uo39.jpg
Southern Ocean (60 to 90S)
Monthly Change = +0.097 deg C

SOURCE

The Optimally Interpolated Sea Surface Temperature Data (OISST) are available through the NOAA National Operational Model Archive & Distribution System (NOMADS).
http://nomad3.ncep.noaa.gov/cgi-bin/pdisp_sst.sh?lite

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About Bob Tisdale

Research interest: the long-term aftereffects of El Niño and La Nina events on global sea surface temperature and ocean heat content. Author of the ebook Who Turned on the Heat? and regular contributor at WattsUpWithThat.
This entry was posted in SST Update. Bookmark the permalink.

4 Responses to >March 2009 SST Anomaly Update

  1. Anonymous says:

    >Bob, an article by Bratcher and Giese found that “low frequency changes of tropical Pacific temperature lead global surface air temperature changes by about 4 years.”Would it be possible to put together a graph of tropical Pacific SSTs?Thanks,DBTropical Pacific decadal variability and global warmingwww.agu.org/pubs/crossref/2002/2002GL015191.shtml

  2. Bob Tisdale says:

    >DB, please don’t include phone numbers and email addresses. I have no way to snip them in blogger (or I haven’t discovered how to do it), so, not knowing what kind of programs read my blog (there’s at least one), I felt I had to delete your comment. Sorry. Next time, please leave the personal info out. Thanks.You wrote, “Bob, thanks for the slide presentation info. She appears to focus in on the area 10S and about 150W.”I found slide 9 (the comparison of NINO3 SST anomaly and global temperature) interesting.WorldClimateReport did a post on the study here:http://www.worldclimatereport.com/archive/previous_issues/vol8/v8n04/feature1.htm And CO2Science did a write up here:http://www.co2science.org/articles/V6/N20/C1.phpKnow anyone who can do some statistical analysis?http://bobtisdale.blogspot.com/2009/01/wanted-statistical-data-analysis-help.htmlYou wrote, “I wonder if Ms. Bratcher would be interested in doing a seven-year update? She’s now Amy Wagner at NOAA”You’ll have to ask her.I’m still looking for a copy of the full paper to see how they filtered the data to come up with the lags, to see where they got the Southern Ocean subsurface temperature data, and to see what coordinates they used for the Tropical Pacific, see whose SST data they’re using, etc.Looks like an interesting paper. Too bad they’ve got a $9.00 firewall on it. Regards.

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