Observed subsurface lens-like features east of the Philippines

doi:10.1016/j.dsr.2022.103901

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Observed subsurface lens-like features east of the Philippines
	Song, Weiqi 1,2,3; Zhang, Linlin 1,2,4; Hu, Dunxin 1,2,4
刊名	DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
	2022-12-01
卷号	190 页码:12
关键词	Subsurface lens-like structures In-situ measurements East of the Philippines
ISSN号	0967-0637
DOI	10.1016/j.dsr.2022.103901
通讯作者	Zhang, Linlin(zhanglinlin@qdio.ac.cn)
英文摘要	Two subsurface anticyclonic lenses (Lens12 and Lens17) were observed with in-situ measurements along the 8 degrees N transect east of the Philippines during the December 2012 and December 2017 cruises. The isopycnals above the lens center dome upward and those below depress downward. The horizontal scales of Lens12 and Lens17 are approximately 176 km and 210 km, centered at approximately 800 m and 1000 m, respectively, and their vertical extents exceed 1500 m. Mean swirl velocity of Lens17 measured by Lowered Acoustic Doppler Current Profilers is approximately 15 cm/s below 400 m and generally exhibits vertically coherent characteristics. The isopycnal undulations induced by lenses result in substantial temperature anomalies in depth. Temperature anomalies associated with Lens12 reach-3 degrees C and 1 degrees C at the depth range of 200-400 and 800-1500 m, respectively. On isopycnals, prominent positive temperature and salinity anomalies associated with Lens12 reach 0.5 degrees C and 0.1 ps mu near 26.82 sigma theta, implying that Lens12 carries alien warm and saline water. Combining the water mass properties of Lens12 and the mooring measurements, it is suggested that Lens12 originates from the east and travels westward with a phase speed of approximately 5.2 cm/s. Differing from Lens12, Lens17 shows no evident anomalous water mass properties on isopycnals. Mooring measurements imply that Lens17 probably originates from the south or southeast along the western boundary.
资助项目	National Natural Science Foundation of China[42122041] ; National Natural Science Foundation of China[41776021] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42010105] ; National Key Research and Development Program of China[2020YFA0608801] ; Youth Innovation Promotion Association (CAS) ; TS Scholar Program ; NSFC Shiptime Sharing Project
WOS研究方向	Oceanography
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000884383200001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/180271]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Zhang, Linlin
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Natl Lab Marine Sci & Technol, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Song, Weiqi,Zhang, Linlin,Hu, Dunxin. Observed subsurface lens-like features east of the Philippines[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2022,190:12.
APA	Song, Weiqi,Zhang, Linlin,&Hu, Dunxin.(2022).Observed subsurface lens-like features east of the Philippines.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,190,12.
MLA	Song, Weiqi,et al."Observed subsurface lens-like features east of the Philippines".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 190(2022):12.