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Pacific ENSO Update

3rd Quarter, 2009 Vol. 15 No. 3


Since the beginning of May 2009, positive sea-surface temperature (SST) anomalies have increased across the equatorial Pacific. During the last four weeks, SST anomalies have become increasingly positive across the equatorial Pacific Ocean. During mid-May through early July 2009, positive sub-surface temperature departures strengthened, especially in the eastern Pacific. Positive sub-surface temperature anomalies now stretch across the entire equatorial Pacific, extending to the surface from about 140ºW to the South American coast. The upper ocean heat content anomalies have been positive since April, and have steadily increased since that time, reflecting El Niño conditions.

Average SST Anomalies

Graphics from NOAA's U.S. Climate Prediction Center

Pacific ENSO Applications Climate (PEAC) Center
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Page Last Modified: June 01 2010 22:10:33 GMT


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