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《Meteorological Monthly》 2008-09
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Comparative Analysis of Sea-land Breeze Convergence Line along Bohai Gulf with Radar CINRAD-SA and Automatic Meteorological Station Data

Lu Huanzhen1 Zhao Yujie1 Yu Xiaoding2 Feng Jinhu1(1.Binhai Meteorological Office,Tianjin 300457;2.China MeteorologicalAdministration Training Center)  
For studying the evolution rules of the sea-land breeze,a statistical analysis of appearance and disappearance and evolution rules of PBL convergence line associated with the sea-land breeze along Bohai Gulf is done by using Tianjin weather radar CINRAD-SA and automatic meteorological station data.The correspondences between PBL convergence line and sea-land breeze along Bohai Gulf are researched.The results show that:(1) The PBL convergence line forming along coastline is actually sea-land breeze convergence line.(2) Sea-land breeze convergence line can be only monitored by radar from May to September each year,mainly in June to September.(3) On clear days,when a strong sea-land breeze convergence line passes the radar or blows to the northwest of the radar,land breeze turns to sea breeze.(4) The stronger the intensity of sea-land breeze convergence line and the higher sea-land breeze convergence line stretches vertically,the larger the speed of corresponding sea breeze.
【Fund】: 北京市科技计划课题“北京奥运会国际天气预报示范计划支持技术研究”(Z0006279040191);; 国家科技攻关计划课题“北京奥运短时临近预报实时业务系统研发”(2005BA904B05);; 公益性行业(气象)科研专项经费项目“京津冀城市群强对流天气短时临近预报关键技术研究”(GYHY200706004)
【CateGory Index】: P412.25
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