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Field-observation for an anticyclonic mesoscale eddy consisted of twelve gliders and sixty-two expendable probes in the northern South China Sea during summer 2017
Shu YQ(舒业强)1; Chen J(陈举)1; Li S(李硕)2; Wang Q(王强)1; Yu JC(俞建成)2; Wang DX(王东晓)1
Department海洋机器人卓越创新中心
Source PublicationScience China Earth Sciences
ISSN1674-7313
2019
Volume62Issue:2Pages:451-458
Indexed BySCI ; EI ; CSCD
EI Accession number20183705801071
WOS IDWOS:000458813200009
CSCD IDCSCD:6465545
Contribution Rank2
KeywordAnticyclonic mesoscale eddy Glider northern South China Sea
AbstractAn intensive field observation experiment using 12 Chinese gliders equipped with conductivity-temperature-depth (CTD) sensors and 62 expendable CTD probes (XCTDs) was performed to investigate the 3-D structure and time evolution of an anticyclonic eddy in the northern South China Sea (NSCS). The observed results showed that the anticyclonic eddy had a horizontal radius of about 80 km at surface and a vertical depth of impact of more than 1000 m. The largest temperature and salinity anomalies compared with the averaged values of the temperature and salinity profiles were 3.5°C and 0.4 psu at 120 m depth, respectively. Combined analysis of altimeter sea level and water mass properties indicated that the anticyclonic eddy was shed from the Kuroshio loop current. The vertical axis of the anticyclonic eddy tilted from surface to the observed maximum depth (1000 m) along its translation direction against the 2000 m isobath. The center of the anticyclonic eddy remained in the region east of Dongsha Island for more than half a month. During this time, the long axis direction of the eddy changed from across the slope to along the slope. Then, the eddy moved southward along the 2000 m isobaths. Both the geostrophic current and temperature distribution revealed that the eddy intensity weakened during the observation period gradually. These observations indicated strong interaction between the anticyclonic eddy and the slope topography of Dongsha Island.
Language英语
WOS SubjectGeosciences, Multidisciplinary
WOS KeywordKUROSHIO ; ENERGY
WOS Research AreaGeology
Funding ProjectNational Natural Science Foundation of China[61233013] ; Strategic Priority Research Programs of the Chinese Academy of Sciences[XDA11010302] ; Strategic Priority Research Programs of the Chinese Academy of Sciences[XDA11040101] ; National Natural Science Foundation of China[41521005] ; National Natural Science Foundation of China[41776036] ; National Natural Science Foundation of China[41476012] ; National Natural Science Foundation of China[41576012] ; National Natural Science Foundation of China[41776026] ; Science and Technology Program of Guangdong, China[2016A020224003] ; National Key Scientific Instrument and Equipment Development Project[2013YQ16079303]
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Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/22740
Collection海洋机器人卓越创新中心
Corresponding AuthorYu JC(俞建成); Wang DX(王东晓)
Affiliation1.State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
2.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
Recommended Citation
GB/T 7714
Shu YQ,Chen J,Li S,et al. Field-observation for an anticyclonic mesoscale eddy consisted of twelve gliders and sixty-two expendable probes in the northern South China Sea during summer 2017[J]. Science China Earth Sciences,2019,62(2):451-458.
APA Shu YQ,Chen J,Li S,Wang Q,Yu JC,&Wang DX.(2019).Field-observation for an anticyclonic mesoscale eddy consisted of twelve gliders and sixty-two expendable probes in the northern South China Sea during summer 2017.Science China Earth Sciences,62(2),451-458.
MLA Shu YQ,et al."Field-observation for an anticyclonic mesoscale eddy consisted of twelve gliders and sixty-two expendable probes in the northern South China Sea during summer 2017".Science China Earth Sciences 62.2(2019):451-458.
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