>February 2009 SST Anomaly Update

>The map of Global OI.v2 SST anomalies provided by NOMADS is shown below.
http://s5.tinypic.com/wvelo6.jpg
February 2009 SST Anomalies Map

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 February 25, 2009. The rest of the graphs illustrate raw monthly OI.v2 SST anomaly data from November 1981 to February 2009.

The monthly change (February 2009 Minus January 2009) in Global SST anomalies was approximately -0.020 deg C. NINO3.4 SST anomalies are just below the threshold of a La Nina. If the NINO3.4 SST anomalies continue to rise, it seems unlikely the CPC will consider 2008/09 a full-fledged La Nina event.

NINO3.4 SST ANOMALIES BASED ON WEEKLY OI.v2 SST DATA
http://s5.tinypic.com/2dwe9k.jpg
NINO3.4 SST Anomaly (Weekly)
Present Value = -0.53
#####

MONTHLY OI.v2 SST UPDATES
http://s5.tinypic.com/15cga6s.jpg
NINO3.4 SST Anomaly (Monthly)
Monthly Change = +0.287 deg C
#####
http://s5.tinypic.com/jrwep1.jpg
Global
Monthly Change = -0.020 deg C
#####
http://s5.tinypic.com/5jy93r.jpg
Northern Hemisphere
Monthly Change = -0.018 deg C
#####
http://s5.tinypic.com/2ltn9tc.jpg
Southern Hemisphere
Monthly Change = -0.022 deg C
#####
http://s5.tinypic.com/2s79kis.jpg
North Atlantic (0 to 75N, 78W to 10E)
Monthly Change = -0.156 deg C
#####
http://s5.tinypic.com/2s9rjuh.jpg
South Atlantic (0 to 60S, 70W to 20E)
Monthly Change = -0.067 deg C
#####
http://s5.tinypic.com/34jews5.jpg
North Pacific (0 to 65N, 100 to 270E, where 270E=90W)
Monthly Change = +0.028 Deg C
#####
http://s5.tinypic.com/2euic5k.jpg
South Pacific (0 to 60S, 145 to 290E, where 290E=70W)
Monthly Change = -0.014 deg C
#####
http://s5.tinypic.com/11v1s85.jpg
Indian Ocean (30N to 60S, 20 to 145E)
Monthly Change = +0.030 deg C
#####
http://s5.tinypic.com/2b86c3.jpg
Arctic Ocean (65 to 90N)
Monthly Change = +0.022 deg C
#####
http://s5.tinypic.com/n5isqr.jpg
Southern Ocean (60 to 90S)
Monthly Change = +0.049 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.
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