海洋科学2011,Vol.35Issue(1):88-97,10.
不同天气尺度系统风下的海风发生发展过程对比分析
Comparative analysis of the development of the sea breezes under different synoptic-scale winds
摘要
Abstract
In order to analyze the development of the sea breezes under different synoptic-scale wind, using the ARPS(The Advanced Regional Prediction System)model, three sea breeze cases during the 2006 Qingdao International Regatta were simulated.Results show that the sea breezes can occur if the land-sea temperature difference is over 1 ~ 2℃ under whatever synoptic-scale wind.When the synoptic-scale wind in the boundary is offshore the sea breeze cannot push in land too far; otherwise, the sea breeze can push in land for a long distance.When the synoptic-scale wind is weak, thermal effect is critical for the occurrence of the sea breeze.When it is strong offshore,dynamic and thermal effects are both important for the occurrence of the sea breeze.The sea breeze is very shallow at the beginning.The vertical circulation of the sea breezes usually starts in the late afternoon to the evening and the height of it is 600 ~ 900 m or so.From evening to mid-night the vertical circulation of the sea breeze develops instead and clear close circulation with warm core can be found.The height of the close circulation is low to be around 300 m.After mid-night the sea breeze circulation dies.When the synoptic-scale wind in the boundary is weak the vertical circulation of the sea breeze tends to maintain for a long time; in comparison, when the synoptic-scale wind is stronger offshore the vertical circulation of the sea breeze can keep shorter.关键词
天气尺度系统风/海风/数值模拟Key words
synoptic-scale wind/ sea breeze/ numerical simulation分类
海洋科学引用本文复制引用
盛春岩..不同天气尺度系统风下的海风发生发展过程对比分析[J].海洋科学,2011,35(1):88-97,10.基金项目
国家自然科学基金项目(40705017) (40705017)
山东省自然科学基金项目(Q2007E03):中国气象局新技术推广项目(CMATG2007M34) (Q2007E03)
山东省气象局重点项目(2006sdqxz08,2009sdqxz01) (2006sdqxz08,2009sdqxz01)