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Monday, February 14, 2011

NINO3.4 SST Anomalies Have Started Their La Niña Rebound

I’ve moved to WordPress.  This post can now be found at NINO3.4 SST Anomalies Have Started Their La Niña Rebound
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Figure 1 shows weekly NINO3.4 SST anomalies from January 7, 2004 through February 9, 2011. The central equatorial Pacific SST anomalies have risen significantly in the last week.
http://i51.tinypic.com/epnha9.jpg
Figure 1

Figure 2 compares the SST anomalies for the transitions from El Niño to La Niña events, during the years of 1988/89, 1998/99, 2007/08, and 2010 through February 9, 2011. At first glance, it appears this rebound started early, but the rebound from the 1988/89 La Niña actually started rising from its minimum a few weeks earlier.
http://i51.tinypic.com/14x2mmr.jpg
Figure 2

And since we’re looking at weekly data, Figure 3 shows the Global SST anomalies from January 7, 2004 through February 9, 2011.
http://i56.tinypic.com/213403k.jpg
Figure 3

SOURCE
The Optimally Interpolated Sea Surface Temperature Data (OISST) are available through the NOAA National Operational Model Archive & Distribution System (NOMADS).
http://nomad1.ncep.noaa.gov/cgi-bin/pdisp_sst.sh
or
http://nomad3.ncep.noaa.gov/cgi-bin/pdisp_sst.sh

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