Seasonal thermocline in the China Seas and northwestern Pacific Ocean

doi:10.1029/2011JC007246

IOCAS-IR > 海洋环流与波动重点实验室

	Seasonal thermocline in the China Seas and northwestern Pacific Ocean
	Hao, Jiajia 1,2; Chen, Yongli 1; Wang, Fan1 ; Lin, Pengfei 2; Hao, JJ (reprint author), Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China.
	2012-02-11
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
卷号	117 页码:C02022
文章类型	Article
摘要	Climatological seasonal variations of the thermocline in the China Seas and northwestern Pacific Ocean were studied using historical data from 1930 through 2001 (707,624 profiles). The quantitative roles of surface thermal buoyancy (B-q), haline buoyancy flux (B-p), and total buoyancy flux (B) against the wind-induced mixing (tau) in different seasons and regions were also explored using the buoyancy ratio (R = \|B-q/B-p\|) and the Monin-Obukhov depth ratio (delta), respectively. The thermocline has obvious seasonal variations in the study area north of 20 degrees N. There is no thermocline along the west coast of the Bohai Sea (BS), Yellow Sea (YS), and northern East China Sea from December to March resulting from surface cooling and wind mixing. The significantly different variation of the thermocline strength on and off the Chinese shelf is mainly caused by the fact that the thermal stratification is enhanced by bottom tidal mixing on the shelf. The delta indicates that the thermocline depth on the Chinese shelf is mainly dominated by B in summer, while it is dominated by tau in winter. It reveals an opposite feature in the Kuroshio region; the dominating factor is B in winter, associated with the large heat buoyancy loss there. South of 20 degrees N, the dominating factor is similar to that on the shelf, with the more obvious B dominant characteristic during the monsoon transition periods. The R demonstrates that B is mainly controlled by B-q all year round, with some sporadically B-p-dominated regions in the tropical area in winter and in the BS and eastern YS in September.
关键词	Mixed-layer Yellow Sea Variability
学科领域	Oceanography
DOI	10.1029/2011JC007246
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000300329400001
引用统计	被引频次：60[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/12185
专题	海洋环流与波动重点实验室
通讯作者	Hao, JJ (reprint author), Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China.
作者单位	1.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China 2.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China
第一作者单位	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Hao, Jiajia,Chen, Yongli,Wang, Fan,et al. Seasonal thermocline in the China Seas and northwestern Pacific Ocean[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2012,117:C02022.
APA	Hao, Jiajia,Chen, Yongli,Wang, Fan,Lin, Pengfei,&Hao, JJ .(2012).Seasonal thermocline in the China Seas and northwestern Pacific Ocean.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,117,C02022.
MLA	Hao, Jiajia,et al."Seasonal thermocline in the China Seas and northwestern Pacific Ocean".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 117(2012):C02022.

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