科研之友
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摘要
Utilizing Bulk model based on the Monin-Obukhov similarity (MOS) theory, the spatial and temporal distribution of atmospheric turbulence in marine surface layer of China Sea is analyzed based on the routine meteorologic factors of South and East China Sea. A program is compiled to realize the function in estimating atmospheric turbulence in marine surface layer. The input data is the routine meteorologic factors from the district of 10° to 33° north latitude and 110° to 130° east longitude, based on the data published by China Meteorological Administration. The routire meteorologic factors consist of water temperature, air temperature at height z, water vapor density adjacent to the sea surface, average water vapor density at height z, air pressure and the average wind speed. The panoramic image of atmospheric turbulence in marine surface layer of China Sea (independent to time) is established utilizing the algorithm of estimating refractive index based on the mean field of the several years meteorologic factors. Then by making a statistic on the air-sea temperature difference (ASTD) by month, we can get two sets of fluctuation data of ASTD on 2D spatial various observation points in East China sea and South China Sea, each of which has 12 groups because the data analyzed is from different districts in the South China Sea and East China Sea. The fluctuation of ASTD is deemed as the key index to depict the seasonal rule or temporal distribution of atmospheric turbulence in marine surface layer. The spatial distribution of atmospheric turbulence is also discussed in the month that has the maximum or minimum variance of ASTD, since it is denoted as the dispersion index. The difference of atmospheric turbulence between seacoast and mare liberum is also discussed while the location is taken into account, thus the spatial distribution of atmospheric turbulence in marine surface layer of China Sea is brought forward.
- 出版日期2010
- 单位中国科学院大学
