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Seasonal Precipitation and Standardized Streamfunction Anomalies

Seasonal Precipitation Anomaly and 200 hPa Standardized Streamfunction Anomaly

Seasonal Precipitation Anomaly and 925 hPa Standardized Streamfunction Anomaly

Precipitation Data:   CAMS-OPI v0208 monthly precipitation anomaly on a 2.5° lat/lon grid Base Period for Precipitation Climatology:  Jan 1979 - Dec 2000 Streamfunction Data: NCEP/NCAR Reanalysis Streamfunction on a 2.5° x 2.5° lat/lon grid Base Period for Streamfunction Climatology: Jan 1971 - Dec 2000 Data Source: NCEP Description Top:  Seasonal (3-month) CAMS-OPI precipitation anomaly from the long-term mean (green and brown shading at 100 mm interval) and seasonal average 200 hPa standardized streamfunction anomaly (blue contours at 0.25 s.d. interval) over the tropical Indian and Pacific Ocean basins. Bottom:  Same as top plot, but with streamfunction at 925 hPa