IOCAS-IR  > 海洋环流与波动重点实验室
Seasonality of the Mindanao Current/Undercurrent System
Ren, Qiuping1,2; Li, Yuanlong1,3,4; Wang, Fan1,2,4; Song, Lina1,5; Liu, Chuanyu1,4; Zhai, Fangguo6
2018-02-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN2169-9275
Volume123Issue:2Pages:1105-1122
Corresponding AuthorWang, Fan(fwang@qdio.ac.cn)
AbstractSeasonality of the Mindanao Current (MC)/Undercurrent (MUC) system is investigated using moored acoustic Doppler current profiler (ADCP) measurements off Mindanao (8 degrees N, 127.05 degrees E) and ocean model simulations. The mooring observation during December 2010 to August 2014 revealed that the surface-layer MC between 50-150 m is dominated by annual-period variation and tends to be stronger in spring (boreal) and weaker in fall. Prominent semiannual variations were detected below 150 m. The lower MC between 150 and 400 m is stronger in spring and fall and weaker in summer and winter, while the northward MUC below 400 m emerges in summer and winter and disappears in spring and fall. In-phase and out-of-phase current anomalies above and below 150 m were observed alternatively. These variations are faithfully reproduced by an eddy-resolving ocean model simulation (OFES). Further analysis demonstrates that seasonal variation of the MC is a component of large-scale upper-ocean circulation gyre, while current variations in the MUC layer are confined near the western boundary and featured by shorter-scale (200-400 km) structures. Most of the MC variations and approximately half of the MUC variations can be explained by the first and second baroclinic modes and caused by local wind forcing of the western Pacific. Semiannual surface wind variability and superimposition of the two baroclinic modes jointly give rise to the enhanced subsurface semiannual variations. The pronounced mesoscale eddy variability in the MUC layer may also contribute to the seasonality of the MUC through eddy-current interaction.
DOI10.1002/2017JC013474
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDA11010204] ; National Basic Research Program of China[2012CB417401] ; National Natural Science Foundation of China[41776001] ; National Natural Science Foundation of China[41706018] ; National Natural Science Foundation of China[41406015] ; National Natural Science Foundation of China[41421005] ; National Natural Science Foundation of China[U1406401] ; National Program on Global Change and Air-Sea Interaction[GASI-IPOVAI-01-01] ; AoShan Talents Program - Qingdao National Laboratory for Marine Science and Technology[2015ASTP]
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000427970400023
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/158756
Collection海洋环流与波动重点实验室
Corresponding AuthorWang, Fan
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA
4.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China
5.Shandong Acad Sci, Inst Oceanog Instrumentat, Qingdao, Peoples R China
6.Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao, Peoples R China
First Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Ren, Qiuping,Li, Yuanlong,Wang, Fan,et al. Seasonality of the Mindanao Current/Undercurrent System[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2018,123(2):1105-1122.
APA Ren, Qiuping,Li, Yuanlong,Wang, Fan,Song, Lina,Liu, Chuanyu,&Zhai, Fangguo.(2018).Seasonality of the Mindanao Current/Undercurrent System.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,123(2),1105-1122.
MLA Ren, Qiuping,et al."Seasonality of the Mindanao Current/Undercurrent System".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 123.2(2018):1105-1122.
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