Variation of the wave energy and significant wave height in the China Sea and adjacent waters
Variation of the wave energy and significant wave height in the China Sea and adjacent waters
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DOI：
10.1016/j.rser.2014.11.001
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发表时间：
2015-03
影响因子：
15.9
通讯作者：
Chong-wei Zheng;Chongyin Li
中科院分区：
文献类型：
--
作者：
Chong-wei Zheng;Chongyin Li
在当前环境和资源问题持续的背景下，增加清洁和可再生能源的开发可以帮助缓解能源危机，并有助于减少排放和保护环境，从而促进未来的可持续发展。本文利用WAVEWATCH-III （WW3）的后发波资料，探讨了1988-2011年中国海波能和有效波高的长期气候变化趋势。首先分析了该变化的区域差异和季节差异。结果表明：①1988 ~ 2011年，中国海域波浪能密度（0.2012 (kW/m)/yr）和SWH （1.52 cm/yr）总体呈显著增加趋势；(2)中国大部分海域波浪能密度有明显的增加趋势，波能密度为0.1 ~ 0.7 (kW/m)/yr，波浪高为0.5 ~ 4.5 cm/yr。上升趋势较强的地区分布在琉球群岛海域、台湾海峡和南海北部，尤其是东沙群岛海域。(3)海面SWH和波能密度变化均存在明显的季节差异。不同水域的变化主要受季节的影响。DJF和MAM的SWH增加趋势明显强于JJA和SON。DJF的波能密度增加趋势强于其他季节。
Given the current background of ongoing environmental and resource issues, the increased exploitation of clean and renewable energy could help to alleviate the energy crisis, as well as contributing to emissions reduction and environmental protection, and so promote future sustainable development. This study explores to reveal the climatic long term trends of the China Sea wave power and significant wave height (SWH) for the period 1988–2011, using a WAVEWATCH-III (WW3) hindcast wave data. The regional difference and seasonal difference of the variation are also presented firstly. Results show that, (1) The China Sea exhibits a significant overall increasing trend in the wave power density (0.2012 (kW/m)/yr) and the SWH (1.52 cm/yr) for the period 1988 to 2011. (2) There is a noticeable increasing trend in most parts of the China Sea, of 0.1–0.7 (kW/m)/yr in wave power density and 0.5–4.5 cm/yr in SWH. Areas with strong increasing trend distribute in the Ryukyu Islands waters, Taiwan Strait and north of the South China Sea (SCS), especially in the Dongsha Islands waters. (3) There is a noticeable seasonal difference in the variation of both SWH and wave power density. The variation in different waters is dominated by the different seasons. The increasing trend of SWH in DJF and MAM is obviously stronger than that in JJA and SON. The increasing trend of wave power density in DJF is stronger than that in other seasons.