中国近海海面通量的气候平均和季节变化特征

IOCAS-IR > 海洋环流与波动重点实验室

	中国近海海面通量的气候平均和季节变化特征
其他题名	The mean and seasonal characters of sea surface fluxes in the China adjacent seas
	刘海龙
学位类型	博士
	2002
学位授予单位	中国科学院海洋研究所
学位授予地点	中国科学院海洋研究所
学位专业	物理海洋学
关键词	中国近海海表通量季节变化经验正交函数分解温度场风速场
摘要	该文依据英国南安普郭海洋中心气候学海面通量资料集,采用EOF及一般统计分析方法,分析和研究了中国近海热通量、淡水通量及由动量通量计算而得的风应力旋度场的气候平均和季节变化特征.并分别对日本海、渤黄东海及南海进行了讨论.结果显示,日本海与渤黄东海年平均海面净热通量为失热,日本海为-27Wm<'-2>,渤黄东海为-25Wm<'-2>.南海为海洋获得净热通量,量值为58Wm<'-2>.在黑潮流区存在最大的净热通量损失值区,在冬季12月份最大损失值可达-330Wm<'-2>.在日本海区对马暖流沿日本群岛西海岸在冬季12月也有最大损失值-270Wm<'-2>.日本海与东中国海净热通量变化趋势基本一致,而南海在4月达到净热通量的最大值.最后该文还对海表通量与海表温度场及风速场作了延迟相关分析.
其他摘要	Based on the Ocean-Atmosphere Heat, Momentum and fresh water Climatological Flux Atlas of Southampton Oceanography Center, the climatology and seasonal variation characters of the heat, fresh water flux and the wind stress curl in China adjacent seas, which is computed from the momentum flux data, are analyzed and studied by EOF method and statistical methods. And the East/Japan Sea, East China Sea and South China Sea are discussed respectively. The results show that there are heat loss in Japan Sea and East China Sea by yearly average, respectively with -27Wm~(-2) and -25Wm~(-2). South China Sea gain heat by yearly average with 58Wm~(-2). A maximum of heat loss exists in Kuroshio area and it can get -330 Wm~(-2) in December. Another maximum of heat loss existing in Japan Sea is Tsushima Current area with -270Wm~(-2)in December. The seasonal variations of heat flux are similar in Japan and East China Sea. But the character in South China Sea is different and it gets the maximum of heat gain in April. Compared with former study, because the spatial and the temporal resolution of the data sets are different and the different bulk formulas are used to calculate the fluxes, the values of fluxes are different. But the seasonal variation processes of heat flux are similar as well as the space pattern in those studies. The variations of wind stress curl are dominated by the monsoons in Japan Sea and South China Sea and the value is stronger in winter than in Summer. As-to the fresh water, it is fresh water loss in Japan and East China Sea with annual - 267mm and - 391mm respectively. South China Sea gains fresh water with annual 222mm. There is a long and narrow maximum center off the West-northern Kalimantan coast in Indonesia, which gets 192mm in January and 1260mm yearly. At last cros-correlation analyses are computed between fluxes and the SST and wind speed.
页数	121
语种	中文
文献类型	学位论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/583
专题	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	刘海龙. 中国近海海面通量的气候平均和季节变化特征[D]. 中国科学院海洋研究所. 中国科学院海洋研究所,2002.

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