Mesoscale structures of two types of cold-air outbreaks over the East China Sea and the effect of coastal sea surface temperature

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Two types of cold-air outbreaks over the Yellow and East China Seas are investigated using a regional mesoscale model. Distinct patterns of surface turbulent heat fluxes and precipitation are identified between the two cases. The sea surface heat flux and frictional velocity are strongly influenced by mesoscale differences between high- and low-resolution datasets of sea surface temperature (SST). The influence of the SST difference on atmospheric water is spread to the downstream area of the outbreak with the phase transition of water. The air mass transformation around 800 hPa over the Kuroshio is partly influenced by the upstream SST difference. In particular, the SST difference near the mouth of the Yanzi River strongly modifies the air mass around Taiwan. Thus, in addition to the Kuroshio front, the mesoscale Chinese coastal SST structure is also important in the air mass transformation over the East China Sea.

Original languageEnglish
Pages (from-to)89-112
Number of pages24
JournalMeteorology and Atmospheric Physics
Issue number3-4
Publication statusPublished - Feb 1 2012


All Science Journal Classification (ASJC) codes

  • Atmospheric Science

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