Guest Post by Bob Tisdale
STANDARD OPENING PARAGRAPH
The September 2012 Reynolds OI.v2 Sea Surface Temperature (SST) data through the NOAA NOMADS website won’t be official until Monday, September 8th. Refer to the schedule on the NOAA Optimum Interpolation Sea Surface Temperature Analysis Frequently Asked Questions webpage. The following are the preliminary Global and NINO3.4 SST anomalies for September 2012 that the NOMADS website prepares based on incomplete data for the month. I’ve also included the weekly data through the week centered on September 26, 2012, but I’ve shortened the span of the weekly data, starting it in January 2004, so that the variations can be seen.
The sea surface temperatures of an area in the eastern equatorial Pacific (5S-5N, 170W-120W), known as the NINO3.4 region, are a commonly used reference for the strength, frequency and duration of El Niño and La Niña events. Weekly NINO3.4 region sea surface…
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