Data: NCEP/NCAR Reanalysis 925 hPa daily zonal wind
(m/s)
Base Period for Climatology: 1971-2000
Data Source: NCEP/NCAR Reanalysis
Description: Five-day running average zonal wind
anomalies averaged over 5°S to 5°N, contoured at 1.0 m/s. Shading starts at +/-
1.0 m/s. Positive anomalies (anomalous westerlies) are in red, negative anomalies (anomalous easterlies) are in blue. Longitude domain is 50°E to 80°W. On this chart the last 120 days are shown, and time increases
vertically. The vertical black line denotes 180° longitude.
NCEP is the acronym for the National Centers for Environmental Prediction; NCAR is the acronym for the National Center for Atmospheric Research
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