Fig. 1: Selecting the westerly Quasi-Biennial Oscillation (WQBO) and easterly QBO (EQBO) years. | Nature Communications

Fig. 1: Selecting the westerly Quasi-Biennial Oscillation (WQBO) and easterly QBO (EQBO) years.

From: QBO deepens MJO convection

Fig. 1

Domain mean temperature in the Maritime Continent (MC; 100°E−150°E, 15°S−5°N) for layers between 50 and 100 hPa (T50-100) is aligned with (a) zonal mean zonal wind at 50-hPa (U50), and (b) Niño 3.4. Panel (c) shows a scatter plot of U50 vs. Niño3.4, and the level of T50-100 is presented in colors. All values are wintertime mean anomalies for December to February (DJF), and the correlation coefficient between variables of x and y axes is shown above each panel. The number next to each circle symbol indicates the last two digits of the year to which the particular January belongs to. In panel (c), the darker gray color areas indicate the WQBO and EQBO winters used in this study.

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