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Land-sea breeze circulation structure on the west coast of the Yellow Sea,China
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作者 Yongxiang Ma Jinyuan Xin +8 位作者 Xiaoling Zhang lindong dai Klaus Schaefer Shigong Wang Yuesi Wang Zifa Wang Fangkun Wu Xinrui Wu Guangzhou Fan 《Atmospheric and Oceanic Science Letters》 CSCD 2021年第1期14-21,共8页
Land-sea breeze(LSB)is an atmospheric mesoscale circulation that occurs in the vicinity of the coast and is caused by uneven heating resulting from the difference in specific heat capacity between the sea and land sur... Land-sea breeze(LSB)is an atmospheric mesoscale circulation that occurs in the vicinity of the coast and is caused by uneven heating resulting from the difference in specific heat capacity between the sea and land surfaces.The circulation structure of LSB was quantitatively investigated with a Doppler wind lidar Windcube100s on the west coast of the Yellow Sea for the first time.The time of observation was 31 August to 28 September 2018.It was found that the height of LSB development was 700 m to 1300 m.The duration of conversion of LSB was between 6 h and 8 h.The biggest average horizontal sea-breeze wind speed at 425 m was 5.6 m s^(-1),and at 375 m it was 4.5 m s^(-1).During the conversion process from sea breeze to land breeze,the maximum wind shear exponent was 2.84 at 1300 m altitude.During the conversion process from land breeze to sea breeze,the maximum wind shear exponent was 1.28 at 700 m altitude.The differences in wind shear exponents between sea-breeze and landbreeze systems were between 0.2 and 3.6 at the same altitude.The maximum value of the wind shear exponent can reflect the height of LSB development. 展开更多
关键词 Land-sea breeze Vertical wind speed CCirculation structure Doppler wind lidar Yellow sea
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