IOCAS-IR  > 海洋环流与波动重点实验室
Semiannually alternating exchange of intermediate waters east of the Philippines
Wang, Fan1,2; Song, Lina1,3; Li, Yuanlong1,4; Liu, Chuanyu1,2; Wang, Jianing1,2; Lin, Pengfei5; Yang, Guang6; Zhao, Jun1; Diao, Xinyuan1; Zhang, Dongxiao7,8; Hu, Dunxin1,2
AbstractIntermediate water exchange in the northwest tropical Pacific is explored with the temperature, salinity, and current measurements of a mooring system deployed at 8 degrees N, 127.05 degrees E during 2010-2014. For the first time, prominent semiannual variability (SAV; with the maximum power at similar to 187days) of subthermocline meridional flow along the Mindanao coast is revealed. A significant correlation between meridional flow and salinity is found at intermediate depths. This provides direct evidence for the alternating transports of South Pacific and North Pacific Intermediate Waters by northward and southward undercurrents, respectively. Further analysis with an eddy-resolving ocean general circulation model demonstrates that the SAV is generated locally near the western boundary, manifesting as large-scale subthermocline recirculation and leading to alternating northward and southward flows near the Mindanao coast, which plays an efficient role in the intermediate water exchange of the northwest tropical Pacific. Mechanisms underlying the observed SAV are discussed.
KeywordWestern Boundary Currents Water Mass Exchange Semiannual Variability Subthermocline Circulation
Indexed BySCI
WOS IDWOS:000380901600046
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA
5.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China
6.State Ocean Adm, Inst Oceanog 1, Ctr Ocean & Climate Res, Qingdao, Peoples R China
7.Univ Washington, Joint Inst Study Atmosphere & Ocean, Seattle, WA 98195 USA
8.NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA
First Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang, Fan,Song, Lina,Li, Yuanlong,et al. Semiannually alternating exchange of intermediate waters east of the Philippines[J]. GEOPHYSICAL RESEARCH LETTERS,2016,43(13):7059-7065.
APA Wang, Fan.,Song, Lina.,Li, Yuanlong.,Liu, Chuanyu.,Wang, Jianing.,...&Hu, Dunxin.(2016).Semiannually alternating exchange of intermediate waters east of the Philippines.GEOPHYSICAL RESEARCH LETTERS,43(13),7059-7065.
MLA Wang, Fan,et al."Semiannually alternating exchange of intermediate waters east of the Philippines".GEOPHYSICAL RESEARCH LETTERS 43.13(2016):7059-7065.
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