Fig. 4: Upper-, mid-, and lower-tropospheric circulation anomalies during the first boreal summer following large tropical volcanic eruptions. | Nature Communications

Fig. 4: Upper-, mid-, and lower-tropospheric circulation anomalies during the first boreal summer following large tropical volcanic eruptions.

From: Tropical volcanism triggers pan-Asian monsoon droughts via circumglobal teleconnection

Fig. 4: Upper-, mid-, and lower-tropospheric circulation anomalies during the first boreal summer following large tropical volcanic eruptions.

Composite 200-hPa meridional wind anomalies from Community Earth System Model–Last Millennium Ensemble (CESM-LME) (a) and Linear Baroclinic Model (LBM) (b) simulations in response to volcanic eruptions. c, d Same as (a, b), but for 500 hPa. e, f Same as (a, b), but for 850 hPa. Shading in all panels represents standardized anomalies; arrows denote horizontal wind vectors. For CESM-LME panels, stippling (for shading) and black vectors (for winds) indicate regions where at least 10 out of 13 ensemble members agree on the sign of the anomaly. For LBM panels, black arrows denote stronger winds (>0.5), while gray arrows denote weaker winds (≤0.5).

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