Seasonality of the Mindanao Current/Undercurrent System

doi:10.1002/2017JC013474

	Seasonality of the Mindanao Current/Undercurrent System
	Ren, Qiuping 1,2; Li, Yuanlong 1,3,4; Wang, Fan 1,2,4; Song, Lina 1,5; Liu, Chuanyu 1,4; Zhai, Fangguo 6
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2018-02-01
卷号	123 期号:2 页码:1105-1122
ISSN号	2169-9275
DOI	10.1002/2017JC013474
文献子类	Article
英文摘要	Seasonality 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.
WOS关键词	NORTH EQUATORIAL CURRENT ; WESTERN BOUNDARY CURRENTS ; PACIFIC-OCEAN CIRCULATION ; TROPICAL PACIFIC ; PHILIPPINE SEA ; INTERANNUAL VARIABILITY ; MOORING OBSERVATIONS ; INDONESIAN SEAS ; MEAN STRUCTURE ; CLIMATE
WOS研究方向	Oceanography
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000427970400023
资助机构	Strategic 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 Program on Global Change and Air-Sea Interaction(GASI-IPOVAI-01-01) ; AoShan Talents Program - Qingdao National Laboratory for Marine Science and Technology(2015ASTP) ; 41706018 ; 41406015 ; 41421005 ; U1406401)
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/10807]
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Wang, Fan
作者单位	1.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
推荐引用方式 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.