The variation of the ocean mixing layer depth and its correlation analysis with winds and waves

Zhang Yang; Li Hong; Ding Yang; Yu Wei; Xu Jianping

doi:10.3969/j.issn.0253-4193.2019.05.002

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Zhang Yang, Li Hong, Ding Yang, Yu Wei, Xu Jianping. The variation of the ocean mixing layer depth and its correlation analysis with winds and waves[J]. Haiyang Xuebao, 2019, 41(5): 12-22. doi: 10.3969/j.issn.0253-4193.2019.05.002

Citation:

Zhang Yang, Li Hong, Ding Yang, Yu Wei, Xu Jianping. The variation of the ocean mixing layer depth and its correlation analysis with winds and waves[J]. Haiyang Xuebao, 2019, 41(5): 12-22. doi: 10.3969/j.issn.0253-4193.2019.05.002

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The variation of the ocean mixing layer depth and its correlation analysis with winds and waves

doi: 10.3969/j.issn.0253-4193.2019.05.002

1.
State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China;College of Marine Science, Shanghai Ocean University, Shanghai 201306, China
2.
State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China;Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing 100084, China
3.
Key Laboratory of Physical Oceanography, Ministry of Education, Ocean University of China, Qingdao 266100, China
4.
College of Marine Science, Shanghai Ocean University, Shanghai 201306, China
5.
State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China

Received Date: 2018-05-15

Abstract

Abstract

This paper simulates the global sea surface wave evolution in 2012, based on a well validated global scale FVCOM wave model, and analyses the global distribution of wind speed, wave parameters and mixing layer depth. Based on the simulation results and observed data, the global distribution patterns of 10 m wind speed, significant wave height and mixing layer depth vary remarkably with season, and they share the most similar trend. By the way of statistic, it is showed the average correlation coefficients between significant wave height, 10 m wind speed, peak period and mixing layer depth are 0.31, 0.25 and 0.12, respectively. For the global distribution of the correlation coefficients, 10 m wind speed and mixing layer depth have high correlation of about 0.5 at low latitudes (0°-20°) in the Indian Ocean, while for the significant wave height it is located at the high latitudes in the Northern Hemisphere and the North Indian Ocean. The correlation coefficients of peak period and mixing layer depth are negative in some areas distributed at low latitudes (0°-30°) in the Indian Ocean. Above all, compared with peak period, significant wave height can better represent the influence of wave energy on surface layer mixing. And significant wave heights and mixing layer depth have stronger correlation than the sea surface wind speed.
- FVCOM,
- wave,
- sea surface wind,
- mixing layer depth,
- correlation analysis

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References(27)

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