AOML
NOAA

Western Hemisphere Warm Pool

Mean SH Index Residuals

The figure below (upper panel) show the mean sea height monthly residuals inside the 28.5°C isotherm in the Western Hemisphere Warm Pool (WHWP) region. The details of the monthly residuals for the last 3 to 4 years are shown in the lower panel.

The monthly residuals for each month are the difference between the mean sea height inside the 28.5°C isotherm for that specific month and the mean sea height inside the 28.5°C value for that month since October, 1992.

These time series are updated monthly.

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