| 海上湍流通量与蒸发波导高度计算及相关性分析 |
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| 引用本文： | 张超,张利军,王红光,韩杰,郭相明.海上湍流通量与蒸发波导高度计算及相关性分析[J].电波科学学报,2020,35(6):832-840. |
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| 作者姓名： | 张超 张利军 王红光 韩杰 郭相明 |
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| 作者单位： | 中国电波传播研究所, 青岛 266107 |
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| 基金项目： | 国家基础加强计划技术领域基金A152003002 |
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| 摘 要： | 基于2017年11月26日至2018年5月31日海上平台采集的气象数据，结合海气边界层耦合海洋-大气响应试验算法，引入稳定条件下发展的普适函数，计算了动量通量、感热通量、潜热通量、蒸发波导高度，并对海气界面通量与蒸发波导高度的相关性进行分析.结果表明:动量通量位于-0.5~0 N/m2，感热通量位于-10~5 W/m2，潜热通量位于0~300 W/m2，蒸发波导高度位于0~25 m；蒸发波导高度与动量通量相关系数为-0.23，与感热通量相关系数为-0.05，与潜热通量相关系数为0.77；蒸发波导高度与潜热通量的相关系数在稳定条件下为0.73，在中性条件下为0.93，在不稳定条件下为0.95.这些分析结果可为揭示海上不同大气条件下的蒸发波导形成机理提供有力支撑.
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| 关 键 词： | 湍流通量 蒸发波导 潜热通量 感热通量 动量通量 相关性 |
| 收稿时间： | 2020-06-16 |
Calculation and correlation analysis of turbulent flux and evaporation duct height at sea |
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| Affiliation: | China Research Institute of Radiowave Propagation, Qingdao 2661071, China |
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| Abstract: | Based on the meteorological data collected from the offshore platform from November 26, 2017 to May 31, 2018, the momentum flux, sensible heat flux, latent heat flux and evaporation duct height were calculated using coupled ocean-atmosphere response experiment algorithm in sea air boundary layer in which the universal functions developed under the stable condition were introduced. And the correlation between air sea interface flux and evaporation duct height was analyzed. The results show that the momentum flux is in the range of -0.5—0 N/m2, the sensible heat flux is in the range of -10—5 W/m2, the latent heat flux is in the range of 0—300 W/m2, and the evaporation duct height is in the range of 0—25 m. For all the observed data, the correlation coefficient between the evaporation duct height and latent heat flux is 0.77, that between the evaporation duct height and momentum flux is -0.23, and that between the evaporation duct height and sensible heat flux is -0.05. The correlation coefficient between evaporation duct height and latent heat flux is 0.73 under stable condition, 0.93 under neutral condition and 0.95 under unstable condition. These results provide a support for revealing the formation mechanism of evaporation duct under different atmospheric conditions. |
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