I’ve moved to WordPress. This post can now be found at 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.jpgMarch 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.jpgAtlantic 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.jpgNINO3.4 SST Anomaly (Weekly)
Present Value = -0.545
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MONTHLY OI.v2 SST UPDATES
http://i41.tinypic.com/2u76s0z.jpgNINO3.4 SST Anomaly (Monthly)
Monthly Change = +0.099 deg C
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http://i41.tinypic.com/210njvs.jpgGlobal
Monthly Change = +0.025 deg C
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http://i39.tinypic.com/nn4rpk.jpgNorthern Hemisphere
Monthly Change = -0.031 deg C
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http://i41.tinypic.com/wvsneu.jpgSouthern Hemisphere
Monthly Change = +0.068 deg C
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http://i42.tinypic.com/rirric.jpgNorth Atlantic (0 to 75N, 78W to 10E)
Monthly Change = -0.017 deg C
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http://i42.tinypic.com/v4xzfa.jpgSouth Atlantic (0 to 60S, 70W to 20E)
Monthly Change = +0.126 deg C
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http://i41.tinypic.com/2pow5t0.jpgNorth Pacific (0 to 65N, 100 to 270E, where 270E=90W)
Monthly Change = -0.014 Deg C
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http://i41.tinypic.com/fc38l4.jpgSouth Pacific (0 to 60S, 145 to 290E, where 290E=70W)
Monthly Change = +0.044 deg C
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http://i42.tinypic.com/qspq9e.jpgIndian Ocean (30N to 60S, 20 to 145E)
Monthly Change = +0.047 deg C
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http://i40.tinypic.com/f9fcy1.jpgArctic Ocean (65 to 90N)
Monthly Change = -0.044 deg C
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http://i39.tinypic.com/67uo39.jpgSouthern 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
