| Stokes漂对上层海洋温度变化影响的数值研究 |
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| 作者姓名： | ZHANG Xiaoshuang WANG Zhifeng WANG Bin WU Kejian HAN Guijun LI Wei |
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| 作者单位： | Key Laboratory of Marine Environmental Information Technology, National Marine Data and Information Service, State Oceanic Administration, Tianjin 300171, China;Ocean University of China, Qingdao 266100, China;National Ocean Technology Center, State Oceanic Administration, Tianjin 300112, China;Ocean University of China, Qingdao 266100, China;Key Laboratory of Marine Environmental Information Technology, National Marine Data and Information Service, State Oceanic Administration, Tianjin 300171, China;Key Laboratory of Marine Environmental Information Technology, National Marine Data and Information Service, State Oceanic Administration, Tianjin 300171, China |
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| 基金项目： | The National Basic Research Program of China under contract No. 2013CB430304;the National High-Tech R&D Program of China under contract No. 2013AA09A505;the National Natural Science Foundation and Science and Technology Support Key Project Plan of China under contract No. 2011BAC03B02;the National Natural Science Foundation of China under contract Nos 41376013, 41376015, 41306006 and 41206178;the open Fundation of the key layboratory of Digital Ocean under contract No. KLDO 201406. |
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| 摘 要： | The impact of Stokes drift on the mixed layer temperature variation was estimated by taking into account an advective heat transport term induced by the Stokes drift in the equation of mixed layer temperature and using the oceanic and wave parameters from a global ocean circulation model （HYCOM） and a wave model （Wave Watch III）. The dimensional analysis and quantitative estimation method were conducted to assess the importance of the effect induced by the Stokes drift and to analyze its spatial distribution and seasonal variation characteristics. Results show that the contribution of the Stokes drift to the mixed layer temperature variation at mid-to-high latitudes is comparable with that of the mean current, and a substantial part of mixed layer temperature change is induced by taking the Stokes drift effect into account. Although the advection heat transport induced by the Stokes drift is not the leading term for the mixed layer temperature equation, it cannot be neglected and even becomes critical in some regions for the simulation of the upperocean temperature.
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| 关 键 词： | 温度变化 海洋环流 数值估算 上层 定量预测方法 季节变化特征 温度方程 混合层 |
| 收稿时间： | 4/2/2013 12:00:00 AM |
| 修稿时间： | 2014/1/17 0:00:00 |
A numerical estimation of the impact of Stokes drift on upper ocean temperature |
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| ZHANG Xiaoshuang,WANG Zhifeng,WANG Bin,WU Kejian,HAN Guijun,LI Wei.A numerical estimation of the impact of Stokes drift on upper ocean temperature[J].Acta Oceanologica Sinica,2014,33(7):48-55. |
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| Authors: | ZHANG Xiaoshuang WANG Zhifeng WANG Bin WU Kejian HAN Guijun and LI Wei |
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| Institution: | 1.Key Laboratory of Marine Environmental Information Technology, National Marine Data and Information Service, State Oceanic Administration, Tianjin 300171, China2.Ocean University of China, Qingdao 266100, China3.National Ocean Technology Center, State Oceanic Administration, Tianjin 300112, China |
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| Abstract: | Adding skewness, a new second order echo model was derived according to the one of Amarouche. With respect to characteristics of HY-2A altimeter waveforms, six retracking schemes were derived with singular value decomposition filtering and different parameters wanted based on maximum likelihood estimation; After processing the data with five-parameter scheme, the proper skewness of elevation probability distribution function of scattering points was 0.15. According to comparisons between significant wave height from the six schemes and that from buoy, Jason-1 and HY-2A IDR, the accuracy of the schemes were analyzed, and the scheme MLE4_SVD (singular value decomposition filtering is conducted before retracking) was the better one for retrieving significant wave height from HY-2A altimeter retracking. |
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| Keywords: | sea surface waves Stokes drift mixed layer temperature |
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