Global Standardized Monthly SST Anomaly Persistence
PAST 3 MONTHS
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PAST 6 MONTHS
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Data:  Reynolds and Smith Version 2 monthly sea surface temperature anomaly (deg. C) on a 1.0 x 1.0 deg. lat/lon grid
Base Period for Climatology:  1971-2000
Data Source:  NCEP, Environmental Monitoring Center

Description:
The plots show the number of months during the past three (top figure) and six (bottom figure) months in which the standardized sea surface temperature anomaly exceeded +1 standard deviation (positive values in red) or fell below -1 standard deviation (shown as negative values in blue) of the 1971-2000 mean.