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A theoretical model of gravity wave propagation based on the transfer function

文献类型：期刊论文

作者Sun Ling-Feng; Wan Wei-Xing; Ding Feng; Mao Tian
刊名CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
出版日期2006-07-01
卷号49期号:4页码:957-964
关键词gravity wave transfer function unit impulse ionospheric disturbances filter
英文摘要In order to study the relationship between the excitation source of gravity wave in the troposphere and the response of ionosphere, a theoretic model of gravity wave propagation based on the complex dispersion relation of internal gravity wave and the conception of transfer function has been built in a dissipative atmosphere which includes viscosity and heat conductivity. In the paper the amplitude of transfer function is discussed in the frequency domain. Through analyzing a case of unit impulse, we obtain the distribution of a certain physical quantity in time and space from earth's surface to 300 kin above. The results reveal that the atmosphere behaves like a filter which offers the easy passage to some gravity waves whose periods range from 15 min to 30 min and the horizontal wave lengths are between 200 km and 450 kin. The response of ionosphere occurs at a large horizontal distance from the source. The viscosity and the conductivity coefficients of atmosphere have small influence in the low atmosphere, but it becomes greater with increasing of height. The frequency obtained by the transfer function model is consistent with that from Row's theory in the low atmosphere, but they differ much in the high atmosphere.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Geochemistry & Geophysics
研究领域[WOS]Geochemistry & Geophysics
关键词[WOS]TRAVELING IONOSPHERIC DISTURBANCES ; SEVERE WEATHER ; ATMOSPHERE
收录类别SCI
语种英语
WOS记录号WOS:000239222700005
公开日期2015-07-28
源URL[http://ir.wipm.ac.cn/handle/112942/4812]  
专题武汉物理与数学研究所_2011年以前论文发表（包括2011年）
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Sun Ling-Feng,Wan Wei-Xing,Ding Feng,et al. A theoretical model of gravity wave propagation based on the transfer function[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2006,49(4):957-964.
APA Sun Ling-Feng,Wan Wei-Xing,Ding Feng,&Mao Tian.(2006).A theoretical model of gravity wave propagation based on the transfer function.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,49(4),957-964.
MLA Sun Ling-Feng,et al."A theoretical model of gravity wave propagation based on the transfer function".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 49.4(2006):957-964.

入库方式： OAI收割

来源：武汉物理与数学研究所

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