| 南海风生近惯性能通量的敏感性分析 |
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| 引用本文： | 孙宝楠,连展,袁业立,徐海洋.南海风生近惯性能通量的敏感性分析[J].海洋学报(英文版),2019,38(4):136-145. |
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| 作者姓名： | 孙宝楠 连展 袁业立 徐海洋 |
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| 作者单位： | 海洋与大气学院, 中国海洋大学, 山东青岛, 266100;海洋环境与数值模拟研究室, 自然资源部第一海洋研究所, 山东青岛, 266061;区域海洋动力学与数值模拟功能实验室, 青岛海洋科学与技术试点国家实验室, 山东青岛, 266037,海洋环境与数值模拟研究室, 自然资源部第一海洋研究所, 山东青岛, 266061;区域海洋动力学与数值模拟功能实验室, 青岛海洋科学与技术试点国家实验室, 山东青岛, 266037,海洋与大气学院, 中国海洋大学, 山东青岛, 266100;海洋环境与数值模拟研究室, 自然资源部第一海洋研究所, 山东青岛, 266061;区域海洋动力学与数值模拟功能实验室, 青岛海洋科学与技术试点国家实验室, 山东青岛, 266037,海洋环境与数值模拟研究室, 自然资源部第一海洋研究所, 山东青岛, 266061 |
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| 基金项目： | The National Natural Science Foundation of China under contract No. 40976016; the Basic Scientific Fund for the National Public Research Institutes of China under contract No. GY0217Q06; the National Science and Technology Major Project of the Ministry of Science and Technology of China under contract No. 2018YFF01014100; the Natural Science Foundation of Shandong Province, China under contract No. ZR2015PD009. |
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| 摘 要： | After validated by the in-situ observation, the slab model is used to study the wind-generated near-inertial energy flux(NIEF) in the South China Sea(SCS) based on satellite-observed wind data, and its dependence on calculation methods and threshold criteria of the mixed layer depth(MLD) is investigated. Results illustrate that the total amount of NIEF in the SCS could be doubled if different threshold criteria of MLD are adopted. The NIEF calculated by the iteration and spectral solutions can lead to a discrepancy of 2.5 GW(1 GW=1×109 W). Results also indicate that the NIEF exhibits spatial and temporal variations, which are significant in the boreal autumn,and in the southern part of the SCS. Typhoons are an important generator of NIEF in the SCS, which could account for approximately 30% of the annual mean NIEF. In addition, deepening of the MLD due to strong winds could lead to a decrease of NIEF by approximately by 10%. We re-estimate the annual mean NIEF in the SCS,which is(10±4) GW and much larger than those reported in previous studies.
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| 关 键 词： | 近惯性能量通量 混合层深度 敏感性分析 南海 台风影响 |
| 收稿时间： | 2018/5/23 0:00:00 |
Seasonal variability of the wind-generated near-inertial energy flux in the South China Sea |
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| Sun Baonan,Lian Zhan,Yuan Yeli and Xu Haiyang.Seasonal variability of the wind-generated near-inertial energy flux in the South China Sea[J].Acta Oceanologica Sinica,2019,38(4):136-145. |
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| Authors: | Sun Baonan Lian Zhan Yuan Yeli and Xu Haiyang |
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| Affiliation: | College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao 266100, China;Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China;Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China,Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China;Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China,College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao 266100, China;Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China;Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China and Key Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China |
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| Abstract: | After validated by the in-situ observation, the slab model is used to study the wind-generated near-inertial energy flux (NIEF) in the South China Sea (SCS) based on satellite-observed wind data, and its dependence on calculation methods and threshold criteria of the mixed layer depth (MLD) is investigated. Results illustrate that the total amount of NIEF in the SCS could be doubled if different threshold criteria of MLD are adopted. The NIEF calculated by the iteration and spectral solutions can lead to a discrepancy of 2.5 GW (1 GW=1×109 W). Results also indicate that the NIEF exhibits spatial and temporal variations, which are significant in the boreal autumn, and in the southern part of the SCS. Typhoons are an important generator of NIEF in the SCS, which could account for approximately 30% of the annual mean NIEF. In addition, deepening of the MLD due to strong winds could lead to a decrease of NIEF by approximately by 10%. We re-estimate the annual mean NIEF in the SCS, which is (10±4) GW and much larger than those reported in previous studies. |
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| Keywords: | near-inertial energy flux mixed layer depth South China Sea typhoon |
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