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dc.contributor.authorSun, Luzh_CN
dc.contributor.authorZheng, Quananzh_CN
dc.contributor.authorWang, Dongxiaozh_CN
dc.contributor.authorHu, Jianyuzh_CN
dc.contributor.authorTai, Chang-Kuozh_CN
dc.contributor.authorSun, Zhenyuzh_CN
dc.contributor.author胡建宇zh_CN
dc.date.accessioned2015-07-22T03:12:01Z
dc.date.available2015-07-22T03:12:01Z
dc.date.issued2011-12zh_CN
dc.identifier.citationJOURNAL OF OCEANOGRAPHY, 2011,67(6):677-687zh_CN
dc.identifier.otherWOS:000299529000002zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/87798
dc.descriptionNational Natural Science Foundation of China [40976013, 40830851]; National Basic Research Program of China (973 Program) [2011CB403504]; United States National Oceanic and Atmospheric Administration National Environmental Satellite, Data, and Informationzh_CN
dc.description.abstractA near-inertial oscillation (NIO) burst event in the west South China Sea (SCS) was observed by an upward-looking mooring Acoustic Doppler Current Profiler (ADCP) in summer 2004. The mooring station was located at 13.99 degrees N, 110.52 degrees E. The spectral analysis reveals that typhoon Chanchu is a major mechanism in triggering the NIO burst event. Before typhoon Chanchu passed over, the NIO signals were quite weak. The NIO band becomes the most energetic constituent of the circulation during the typhoon-wake period. The average peak power density (PD) reaches (5.3 +/- 2.6) x 10(2) cm(2) s(-2) (cycles per hour, cph)(-1) with a maximum value of 9.0 x 10(2) cm(2) s(-2) cph(-1), i.e., 3.1 times higher than that of diurnal tide (DT), (1.7 +/- 0.5) x 10(2) cm(2) s(-2) cph(-1). At the upper (80 m) and sub-upper (208 m) layers, the central frequency of the NIO band is 0.022 cph with a blueshift of about 9% above the inertial frequency f (0.02015 cph). At the lower layer (400 m), the central frequency of the NIO band is 0.021 cph with a blueshift of about 4% above the inertial frequency. The blueshifts are explained partially by the Doppler shift induced by the vorticity of mesoscale eddies. During the after-typhoon period, a resonance-like process between NIO and DT is observed in the upper layer. As the NIO frequency approaches the DT subharmonic frequency (0.5K(1)), the PD of the NIO band rises sharply accompanied by a sharp drop of the PD of the DT band. The PD ratio of the two bands increases from 4.5 during the typhoon-wake period to 8 during the after-typhoon period, indicating the effect of the parametric subharmonic instability (PSI) mechanism.zh_CN
dc.language.isoen_USzh_CN
dc.publisherJ OCEANOGRzh_CN
dc.source.urihttp://dx.doi.org/10.1007/s10872-011-0081-9zh_CN
dc.subjectOCEAN CURRENT RESPONSEzh_CN
dc.subjectINTERNAL WAVESzh_CN
dc.subjectHURRICANEzh_CN
dc.subjectDYNAMICSzh_CN
dc.subjectCOASTzh_CN
dc.subjectWATERzh_CN
dc.subjectLAYERzh_CN
dc.titleA case study of near-inertial oscillation in the South China Sea using mooring observations and satellite altimeter datazh_CN
dc.typeArticlezh_CN


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