Current PSD (Web/Data Status). PSD has undergone major URL restructuring so that all URLs start with http://www.esrl.noaa.gov/psd/ (More Info).
 

View NCEP Data Source

1982-83 El Niño Animation

SST Animation

Restart Animation



Anomaly   =   (Current Observation   -   Corresponding Climatological Value)
Base period for the climatology is 1950-1979