Fig. 5: Composite of SST, 850-hPa wind, and precipitation anomalies during December–January (left) and February–March (right) for the strong and weak MWAF groups.
From: Part II model support on a new mechanism for North Pacific Oscillation influence on ENSO
a Composite difference of SST (contour), 850-hPa wind (vector), and precipitation (shading) anomalies between positive and negative NPO events during December–January for the strong MWAF group. b Same as (a) but for the weak MWAF group. c Difference between the strong and weak MWAF groups during December–January. d–f Same as (a–c) but for February–March. The dots represent areas above the 90% confidence level for the precipitation, and the vectors are shown only with the zonal wind above the 90% confidence level.
