I’ve moved to WordPress. This post can now be found at Mid-September 2010 SST Anomaly Update
####################NOTE: The weekly OI.v2 SST data is available in two periods through the NOAA NOMADS website, from November 1981 to 1989, and from 1990 to present. The mid-month posts now include the full term of the NINO3.4 and Global SST anomalies from 1990 to present and a shorter-term view from 2004 to present to make the recent wiggles easier to see.
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NINO3.4
NINO3.4 SST anomalies for the week centered on September 15, 2010 show that central equatorial Pacific SST anomalies have risen slightly in the past week. Presently they’re at -1.5 deg C.
http://i53.tinypic.com/2zsa2cy.jpgNINO3.4 SST Anomalies
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http://i51.tinypic.com/2luw95w.jpgNINO3.4 SST Anomalies - Short-Term
GLOBAL
Weekly Global SST anomalies are still elevated and have continued their decline.
http://i54.tinypic.com/24e3n6w.jpgGlobal SST Anomalies
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http://i53.tinypic.com/wnvut.jpgGlobal SST Anomalies - Short-Term
COMPARISON TO PAST LA NIÑA EVENTS AND TRANSITIONS
And for those wondering where the present NINO3.4 SST anomalies stack up against past La Niña events, I’ve provided the following comparison. I’ve also provided a comparison of the declines in global SST anomalies in response to the transitions from El Niño to La Niña, using the same years. Note that the first SST anomaly reading for each year has been zeroed, and that all global SST anomalies have been shifted accordingly. The decline in 2010 Global SST anomalies is toward the high side of the mid-range of past events.
http://i51.tinypic.com/n3lz54.jpgComparison Of La Niña Evolution – 2010 Versus 1988, 1998, and 2007
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http://i56.tinypic.com/xe3otl.jpgComparison Of Global SST Anomalies During La Niña Evolution – 2010 Versus 1988, 1998, and 2007
SOURCE
OI.v2 SST anomaly data is available through the NOAA NOMADS system:
http://nomad3.ncep.noaa.gov/cgi-bin/pdisp_sst.sh?lite
