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Nonlinear interactions between gravity waves and tides
Liu X(刘晓); Xu JY(徐寄遥); Ma RP(马瑞平); 北京8701信箱
Department空间天气学国家重点实验室
Source PublicationNonlinear interactions between gravity waves and tides
2007
Volume50Issue:8Pages:1273-1279
ISSN1006-9313
Language英语
KeywordGravity Waves Tides Mean Wind Nonlinear Interactions Gravity Waves Parameterization Doppler-spread Parameterization Middle Atmosphere Lower Thermosphere General-circulation Diurnal Tide Momentum Deposition Mesosphere Mesopause Model Propagation
AbstractIn this study, we present the nonlinear interactions between gravity waves (GWs) and tides by using the 2D numerical model for the nonlinear propagation of GWs in the compressible atmosphere. During the propagation in the tidal background, GWs become instable in three regions, that is z = 75-85 km, z =90-110 km and z = 115-130 km. The vertical wavelength firstly varies gradually from the initial 12 km to 27 km. Then the newly generated longer waves are gradually compressed. The longer and shorter waves occur in the regions where GWs propagate in the reverse and the same direction of the horizontal mean wind respectively. In addition, GWs can propagate above the main breaking region (90-110 km). During GWs propagation, not only the mean wind is accelerated, but also the amplitude of tide is amplified. Especially, after GWs become instable, this amplified effect to the tidal amplitude is much obvious.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1080
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Liu X,Xu JY,Ma RP,et al. Nonlinear interactions between gravity waves and tides[J]. Nonlinear interactions between gravity waves and tides,2007,50(8):1273-1279.
APA 刘晓,徐寄遥,马瑞平,&北京8701信箱.(2007).Nonlinear interactions between gravity waves and tides.Nonlinear interactions between gravity waves and tides,50(8),1273-1279.
MLA 刘晓,et al."Nonlinear interactions between gravity waves and tides".Nonlinear interactions between gravity waves and tides 50.8(2007):1273-1279.
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