The seasonal variations in the significant wave height and sea surface wind speed of the China's seas

ZHENG Chongwei; PAN Jing; TAN Yanke; GAO Zhansheng; RUI Zhenfeng; CHEN Chaohui

doi:10.1007/s13131-015-0738-0

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ZHENG Chongwei, PAN Jing, TAN Yanke, GAO Zhansheng, RUI Zhenfeng, CHEN Chaohui. The seasonal variations in the significant wave height and sea surface wind speed of the China's seas[J]. Acta Oceanologica Sinica, 2015, 34(9): 58-64. doi: 10.1007/s13131-015-0738-0

Citation:

ZHENG Chongwei, PAN Jing, TAN Yanke, GAO Zhansheng, RUI Zhenfeng, CHEN Chaohui. The seasonal variations in the significant wave height and sea surface wind speed of the China's seas[J]. Acta Oceanologica Sinica, 2015, 34(9): 58-64. doi: 10.1007/s13131-015-0738-0

Citation:

ZHENG Chongwei, PAN Jing, TAN Yanke, GAO Zhansheng, RUI Zhenfeng, CHEN Chaohui. The seasonal variations in the significant wave height and sea surface wind speed of the China's seas[J]. Acta Oceanologica Sinica, 2015, 34(9): 58-64. doi: 10.1007/s13131-015-0738-0

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The seasonal variations in the significant wave height and sea surface wind speed of the China's seas

doi: 10.1007/s13131-015-0738-0

1.
College of Meteorology and Oceanography, People's Liberation Army University of Science and Technology, Nanjing 211101, China;National Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;Dalian Naval Academy, Dalian 116018, China
2.
National Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
3.
College of Meteorology and Oceanography, People's Liberation Army University of Science and Technology, Nanjing 211101, China
4.
Dalian Naval Academy, Dalian 116018, China

Received Date: 2014-10-01
Rev Recd Date: 2015-03-04

Abstract

Abstract

Long-term variations in a sea surface wind speed (WS) and a significant wave height (SWH) are associated with the global climate change, the prevention and mitigation of natural disasters, and an ocean resource exploitation, and other activities. The seasonal characteristics of the long-term trends in China's seas WS and SWH are determined based on 24 a (1988-2011) cross-calibrated, multi-platform (CCMP) wind data and 24 a hindcast wave data obtained with the WAVEWATCH-Ⅲ (WW3) wave model forced by CCMP wind data. The results show the following. (1) For the past 24 a, the China's WS and SWH exhibit a significant increasing trend as a whole, of 3.38 cm/(s·a) in the WS, 1.3 cm/a in the SWH. (2) As a whole, the increasing trend of the China's seas WS and SWH is strongest in March-April-May (MAM) and December-January-February (DJF), followed by June-July-August (JJA), and smallest in September-October-November (SON). (3) The areal extent of significant increases in the WS was largest in MAM, while the area decreased in JJA and DJF; the smallest area was apparent in SON. In contrast to the WS, almost all of China's seas exhibited a significant increase in SWH in MAM and DJF; the range was slightly smaller in JJA and SON. The WS and SWH in the Bohai Sea, the Yellow Sea, East China Sea, the Tsushima Strait, the Taiwan Strait, the northern South China Sea, the Beibu Gulf, and the Gulf of Thailand exhibited a significant increase in all seasons. (4) The variations in China's seas SWH and WS depended on the season. The areas with a strong increase usually appeared in DJF.
- sea surface wind speed,
- significant wave height,
- long-term variation,
- seasonal difference

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