Distribution characteristics of swell in the Pacific and its impact to the marine atmospheric boundary layer

doi:10.3969/j.issn.1001-909X.2019.02.001

Journal of Marine Sciences ›› 2019, Vol. 37 ›› Issue (2): 1-8.DOI: 10.3969/j.issn.1001-909X.2019.02.001

Distribution characteristics of swell in the Pacific and its impact to the marine atmospheric boundary layer

LI Jing¹, ZHENG Chong-wei^*2,3,4, LI Xin⁵, LUO Zhi-xian⁵, WANG Zhen¹, YAO Qi⁶

1. Department of Space Systems,Beijing 100080, China;
2. State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, the Chinese Academy of Sciences, Beijing 100029, China;
3. State Key Laboratory of Estuarine and Coastal Research, Shanghai 200062, China;
4. Navigation Department, Dalian Naval Academy, Dalian 116018, China;
5. College of Meteorology and Oceanography, National University of Defense Technology, Nanjing 211101, China;
6. The 91001 Army of the PLA, Beijing 100841, China

Received:2018-09-19 Revised:2019-05-24 Online:2019-06-15 Published:2022-11-15

Abstract

Abstract: The interannual and season spatial distribution of the peak phase speed of the wave, wave age, wave slope etc, which described for swell and wave-driven wind regime are given by the ERA-40 reanalysis data. The swell speed is the largest in the eastern Pacific equatorial region and other sea, and the propagation from south to north is obvious. The wave boundary layer (WBL) height in the Pacific Ocean shows the distribution situation with the higher in east and lower in the west. The wave-driven wind regime occurs mainly in the equatorial tropical seas, which is stronger in summer and weaker in winter in the northern hemisphere, but that in southern hemisphere is contrary. The northern seas of the northern hemisphere are more prone to the wave-driven wind regime in summer, while the seas near the equator are opposite. The waves in South China Sea is mixture waves of wind waves and swell, therefore it is necessary to discuss separately for the wave climate research.

Key words: Pacific, air-sea boundary layer, wave-driven wind

CLC Number:

P731.22

LI Jing, ZHENG Chong-wei, LI Xin, LUO Zhi-xian, WANG Zhen, YAO Qi. Distribution characteristics of swell in the Pacific and its impact to the marine atmospheric boundary layer[J]. Journal of Marine Sciences, 2019, 37(2): 1-8.

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Distribution characteristics of swell in the Pacific and its impact to the marine atmospheric boundary layer

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