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Geng Y., H.-L Ren, J. Li, 2024: Roles of August Kuroshio SST anomaly in precipitation variation during September overCentral China. J. Meteor. Soc. Japan, 102.
https://doi.org/10.2151/jmsj.2024-005
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Plain Language Summary: This study has found that sea surface temperature anomaly (SSTA) in the Kuroshio region near the East China Sea (K-ECS) is a causal factor leading to the precipitation anomaly over Central China (CC) in September. The negative SSTA in K-ECS during August accompanies the weakened local convection, which favors the formation of anomalous anticyclonic circulation below 600 hPa above K-ECS and the southeast of China. There are more water vapors transported into CC by the southerly in the west of this anomalous circulation. Finally, the convergence of moisture provides favorable conditions for the generation of precipitation here.

Highlights:

• Precipitation over Central China in September is attributed to the anomalous anticyclonic circulation to its south side.
• August sea surface temperature anomaly in the Kuroshio region near the East China Sea is responsible for the anomalous circulation over it.
• August sea surface temperature anomaly in the Kuroshio region near the East China Sea could be a useful predictor for September precipitation over Central China.