SCSIO OpenIR  > 热带海洋环境国家重点实验室(LTO)
Seasonal variability of water characteristics in the Challenger Deep observed by four cruises
Huang, Caijing1; Xie, Qiang2,3; Wang, Dongxiao2; Shu, Yeqiang2; Xu, Hongzhou; Xiao, Jingen4; Zu, Tingting2; Long, Tong; Zhang, Tiecheng1
2018
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume8Pages:11791
AbstractThirty 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.
DepartmentLTO
DOI10.1038/s41598-018-30176-4
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17583
Collection热带海洋环境国家重点实验室(LTO)
Affiliation1.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
Recommended Citation
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,2018,8:11791.
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,8,11791.
MLA Huang, Caijing,et al."Seasonal variability of water characteristics in the Challenger Deep observed by four cruises".SCIENTIFIC REPORTS 8(2018):11791.
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