After the sudden surge in Global sea surface temperature anomalies during February, the retreat in March seems tame. The changes in weekly global sea surface temperature anomalies slowed over the past couple of weeks, and they are now at about 0.09 deg C.
Global SST Anomalies – Short-Term
NINO3.4 Sea Surface Temperature (SST) anomalies (a commonly used El Niño-Southern Oscillation Index) rose above the threshold for a La Niña last month, but have once again dropped below it. For the week centered on March 14, 2012, NINO3.4 SST anomalies are approximately -0.55 deg C.
NINO3.4 SST Anomalies – Short-Term
This weekly Reynolds OI.v2 SST dataset begins in 1990. I’ve started the graphs in 2004 to make the weekly variations visible.
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OI.v2 SST anomaly data is available through the NOAA NOMADS system: