Large-Scale Circulation Anomalies and Intraseasonal Oscillations Associated with Long-Lived Extreme Heat Events in South China
作者： Zhiping Wen , Riyu Lu , Ruidan Chen
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摘要: AbstractSouth China experiences extreme heat (EH) most frequently in eastern China. This study specifically explores the large-scale circulation anomalies associated with long-lived EH events south The results show that there is an anomalous cyclone (anticyclone) and active (inactive) convection over (the western Pacific) before onset; then, anticyclone develops moves northwestward dominates on onset day. maintains its strength then diminishes replaced by another migrating from Pacific after final day of event. Consequently, temperature increases around anomalously warm for approximately 10 days average decreases shortly thereafter. fluctuating are intimately related to two intraseasonal oscillation (ISO) modes, namely, 5–25- 30–90-day oscillation...
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