>NINO3.4 SST Anomalies Have Started Their La Niña Rebound

>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.
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.
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.
Figure 3


The Optimally Interpolated Sea Surface Temperature Data (OISST) are available through the NOAA National Operational Model Archive & Distribution System (NOMADS).

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 El Nino-La Nina Processes, SST Update. Bookmark the permalink.

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