The observation and analysis on the deviation of wind stress direction from wind direction

Chen Sheng; Qiao Fangli; Guo Jingsong; Jiao Zhiyong

doi:10.3969/j.issn.0253-4193.2017.01.003

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Chen Sheng, Qiao Fangli, Guo Jingsong, Jiao Zhiyong. The observation and analysis on the deviation of wind stress direction from wind direction[J]. Haiyang Xuebao, 2017, 39(1): 28-35. doi: 10.3969/j.issn.0253-4193.2017.01.003

Citation:

Chen Sheng, Qiao Fangli, Guo Jingsong, Jiao Zhiyong. The observation and analysis on the deviation of wind stress direction from wind direction[J]. Haiyang Xuebao, 2017, 39(1): 28-35. doi: 10.3969/j.issn.0253-4193.2017.01.003

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The observation and analysis on the deviation of wind stress direction from wind direction

doi: 10.3969/j.issn.0253-4193.2017.01.003

1.
College of Science, China University of Petroleum, Qingdao 266580, China;Laboratory of Marine Environment and Numerical Simulation, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
2.
Laboratory of Marine Environment and Numerical Simulation, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
3.
Laboratory of Marine Environment and Numerical Simulation, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
4.
College of Science, China University of Petroleum, Qingdao 266580, China

Received Date: 2015-11-15
Rev Recd Date: 2016-05-22

Abstract

Abstract

Focusing on the inconsistent phenomenon between wind stress direction and wind direction on the air-sea interface, we designed comprehensive observation at the Bohe Station of the South China Sea from February 4 to March 12, 2015. The wind stress was calculated by using the eddy correlation method, the deviation angle between the wind stress and wind vector was analyzed under 3 different atmospheric stability conditions. Furthermore, the parametric relationship between the angle and wind speed was proposed under the stable atmospheric stability condition. Results showed that the stress vector is to the left of the wind for the air stable condition, besides, the deviation angle decreases with the increase of inverse wave age and wind speed, while the stress vector is generally to the right of the wind for the unstable case. The wind stress vector depends on not only the sea surface winds, but also on the surface waves and atmospheric stable conditions.
- eddy correlation method,
- northern South China Sea,
- air-sea boundary layer,
- atmospheric stability,
- wind stress vector

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