Studying of oceanic internal wave spectra in the Northeast South China Sea from seismic reflections

doi:10.3969/j.issn.0001-5733.2009.08.013

	Studying of oceanic internal wave spectra in the Northeast South China Sea from seismic reflections
	Dong Chong-Zhi 1,2; Song Hai-Bin 1; Hao Tian-Yao 1; Chen Lin 1,2; Song Yang 1,2
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2009-08-01
卷号	52 期号:8 页码:2050-2055
关键词	Seismic oceanography Ocean internal wave Internal wave spectra GM76 spectrum
ISSN号	0001-5733
DOI	10.3969/j.issn.0001-5733.2009.08.013
文献子类	Article
英文摘要	Extensive researches about internal waves are mostly from vertical profile observations; however, there are rare in-situ observation data to study horizontal characteristics of internal waves. Compared with the traditional physical oceanographic methods, reflection seismology has several advantages, such as high lateral resolution and the ability of imaging a large ocean profile in short time. Therefore, it is a promising observation technique for internal wave studies, which may make up the defects of traditional observation methods. Results from the reprocessing of a long multi-channel seismic profile in the northeastern margin of the South China Sea reveal clearly coherent undulating reflectors associated with internal waves in the water column. Horizontal wave number spectra of undulating reflectors are calculated and compared with the Garrett-Munk tow spectrum of oceanic internal wave displacements (GM76 spectrum). The results show that internal wave horizontal wave-number spectra are generally consistent with the theoretical GM76 spectrum. However, there are differences in amplitudes and slopes in the low and high wave-number regions between the calculated and theoretical spectra, which are considered to be associated with strong interaction between the internal tides and the complex seafloor topography, and internal wave breaking, etc.
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000269512600013
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/70610]
专题	中国科学院地质与地球物理研究所
通讯作者	Dong Chong-Zhi
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Dong Chong-Zhi,Song Hai-Bin,Hao Tian-Yao,et al. Studying of oceanic internal wave spectra in the Northeast South China Sea from seismic reflections[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2009,52(8):2050-2055.
APA	Dong Chong-Zhi,Song Hai-Bin,Hao Tian-Yao,Chen Lin,&Song Yang.(2009).Studying of oceanic internal wave spectra in the Northeast South China Sea from seismic reflections.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,52(8),2050-2055.
MLA	Dong Chong-Zhi,et al."Studying of oceanic internal wave spectra in the Northeast South China Sea from seismic reflections".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 52.8(2009):2050-2055.