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Seasonal variability of water characteristics in the Challenger Deep observed by four cruises
Huang, Caijing1,2; Xie, Qiang1,3,4; Wang, Dongxiao3; Shu, Yeqiang3; Xu, Hongzhou1; Xiao, Jingen5; Zu, Tingting3; Long, Tong1; Zhang, Tiecheng1,2
2018-08-07
发表期刊SCIENTIFIC REPORTS
ISSN2045-2322
卷号8页码:7
摘要Thirty conductivity-temperature-depth profiler casts in the Challenger Deep were conducted during four cruises from December 2015 to February 2017. Two cruises took place in the summer, and two in the winter. The results demonstrated that water characteristics varied seasonally. The temperature minimum values were the same between the four cruises, but its depth was noticeably shallower in the winter than that in the summer. The theta-S diagram indicated that deep water is more saline in the summer than that in winter at the same potential temperature. Mixing is more intense between 5000 and 6800 m in the summer than that in the winter. The dissipation rate and eddy diffusivity vertically averaged between 5000 and 6800 m in the summer were epsilon(T) = 3.277 x 10(-8) m(2)s(-3) and K-zT = 2.58 x 10(-2) m(2)s(-1), respectively. The geostrophic flows below the reference level of 3000 dbar were cyclonic in the summer, travelling westwards in the northern and eastwards in the southern areas of the Challenger Deep.
DOI10.1038/s41598-018-30176-4
资助者Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
语种英语
关键词[WOS]MARIANA TRENCH ; CIRCULATION ; TOPOGRAPHY ; PACIFIC ; FLOW
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDB06020102] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB06020101] ; National Natural Science Foundation of China[41676015] ; National Natural Science Foundation of China[41776036] ; National Natural Science Foundation of China[41576006]
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000440976700003
出版者NATURE PUBLISHING GROUP
引用统计
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/6338
专题中国科学院深海科学与工程研究所
通讯作者Xie, Qiang; Wang, Dongxiao
作者单位1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Peoples R China
5.Tianjin Univ, Sch Marine Sci & Technol, Tianjin, Peoples R China
第一作者单位中国科学院深海科学与工程研究所
通讯作者单位中国科学院深海科学与工程研究所
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GB/T 7714
Huang, Caijing,Xie, Qiang,Wang, Dongxiao,et al. Seasonal variability of water characteristics in the Challenger Deep observed by four cruises[J]. SCIENTIFIC REPORTS,2018,8:7.
APA Huang, Caijing.,Xie, Qiang.,Wang, Dongxiao.,Shu, Yeqiang.,Xu, Hongzhou.,...&Zhang, Tiecheng.(2018).Seasonal variability of water characteristics in the Challenger Deep observed by four cruises.SCIENTIFIC REPORTS,8,7.
MLA Huang, Caijing,et al."Seasonal variability of water characteristics in the Challenger Deep observed by four cruises".SCIENTIFIC REPORTS 8(2018):7.
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