A Comparison Study Between Spring and Summer Fogs in the Yellow Sea-Observations and Mechanisms

作     者：Suping Zhang~1,Man Li~1,Xiangui Meng~1,Gang Fu~1, Zhaopeng Renl~2,and Shanhong Gao~1 (1 Physical Oceanography Laboratory,and Ocean-Atmosphere Interaction and Climate Laboratory,Ocean University of China 2 Pingdu Meteorological Bureau,Qingdao,China) 

会议名称：《中国海洋湖沼学会水文气象分会2011年联合会议》

会议日期：2011年

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

关 键 词：Yellow Sea fog mechanism atmospheric boundary layer longwave radiation 

摘      要：New observations from buoys and soundings reveal the discrepancies in air-sea interface and in vertical structures between spring(April to May) and summer(July) fogs in the Yellow *** fogs are shallow with a robust temperature inversion,dry layer and cold phase(surface air temperature or SAT is lower than sea surface temperature or SST);summer fogs are deep with weaker stability,indistinct fog top and warm phase(SATSST).Along with numerical simulations,conceptual models for the mechanisms of temperature inversion are *** land-sea contrast is responsible for the robust temperature inversion in spring,and the deep southerlies derived from the east Asian summer monsoon and the adiabatic sinking from the western Pacific subtropical high contributes to the weaker inversion in *** dry layer above the sea fog top intensifies the long-wave radiative cooling effect to lead to the cold phase in spring *** radiative cooling is weaker in summer fogs resulting in SATSST.