The Analysis of Sea-Land Breeze and Thermal Inner Boundary Layer in Dalian-Jinzhou

Based routine weather station data of windward and wind speed in 2007 to analyse sea-land breeze character in DaLian-Jinzhou.Using MM5V3 modle simulate wind field change character when sea-land breeze occurring and to calculate the distance of sea sea wind extending land and land wind extending sea.The results indicated that the appearance frequency of sea breeze and land breeze was obvious season change.Land breeze offen happening in winter,sea breeze was offen happening in summer and spring,sea-land breeze was happening in spring and autumn;The start time and end time of sea breaze is long in summer and short in winter,The start time and end time of land breaze is longer in autumn and winter than in summer;In modle sea-land breeze day sea breeze make humidity of land be large,the speed of sea breeze is larger than the speed of land breeze;Via numerical value modling of sea breeze,from creating to mature the thickness is about 1 000 meter,the distance of extending land is 18.9 kilometer.the thermal inner boundary layer assumes tongue figure,the thickness of thermal inner boundary layer is 700 meters the altitude of parabola is change higher by the distance of land is increasing.The highest altitude of thermal inner boundary layer is 1000 meters.