Affiliation:
1. CMA‐NJU Joint Laboratory for Climate Prediction Studies Instituted for Climate and Global Change Research School of Atmospheric Science Nanjing University Nanjing China
2. College of Advanced Interdisciplinary Studies National University of Defense Technology Nanjing China
Abstract
AbstractThe wintertime Kuroshio sea surface temperature (SST) front has the significant climate effects on Southern China. The study demonstrates a close relationship between heavy precipitation over Southern China and Kuroshio SST front in winter. More than half winter heavy rainfall events in Southern China are proved to be resulted from strong High‐frequency Variability events of the sea surface Wind Coupled with Precipitation (HV‐WCP events) over Kuroshio SST front. One day before strong HV‐WCP events, the initial precipitation appears over Middle‐lower Yangtze River due to the significantly enhanced frontal intensity. Then, precipitation generates low‐level cyclone and southeasterly wind anomalies, after it moving into Kuroshio front area because of the winter monsoon. The significant marine atmospheric boundary layer (MABL) height gradient over Kuroshio leads to plentiful moisture transporting from MABL into the free atmosphere and enhances the local precipitation again. This process further causes the large‐scale stratus rainband extending to Southern China and enhancing the heavy rainfall locally. Especially in 2008 winter, several processes of a strong HV‐WCP event followed by continuous weak ones are conducive to the low‐temperature‐precipitation disaster in Southern China.
Publisher
American Geophysical Union (AGU)
Subject
Space and Planetary Science,Earth and Planetary Sciences (miscellaneous),Atmospheric Science,Geophysics
Cited by
1 articles.
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