典型文献
Variations in Amplitudes and Wave Energy along the Energy Dispersion Paths for Rossby Waves in the Quasigeostrophic Barotropic Model
文献摘要：
Variations in wave energy and amplitude for Rossby waves are investigated by solving the wave energy equation for the quasigeostrophic barotropic potential vorticity model. The results suggest that compared with rays in the nondivergent barotropic model, rays in the divergent model can have enhanced meridional and zonal propagation, accompanied by a more dramatic variability in both wave energy and amplitude, which is caused by introducing the divergence effect of the free surface in the quasigeostrophic model. For rays propagating in a region enclosed by a turning latitude and a critical latitude, the wave energy approaches the maximum value inside the region, while the amplitude approaches the maximum at the turning latitude. Waves can develop when both the wave energy and amplitude increase. For rays propagating in a region enclosed by two turning latitudes, the wave energy approaches the minimum value at one turning latitude and the maximum value at the other latitude, while the total wavenumber approaches the maximum value inside the region. The resulting amplitude increases if the total wavenumber decreases or the wave energy increases more significantly and decreases if the total wavenumber increases or the wave energy decreases more significantly. The matched roles of the energy from the basic flow and the divergence of the group velocity contribute to the slightly oscillating wave energy, which causes a slightly oscillating amplitude as well as the slightly oscillating total wavenumber.
文献关键词：
中图分类号：
作者姓名：
Yaokun LI;Jiping CHAO;Yanyan KANG
作者机构：
College of Global Change and Earth System Science,Beijing Normal University,Beijing 100875,China;National Marine Environmental Forecasting Center,Beijing 100081,China;Beijing Meteorological Observatory,Beijing 100089,China
文献出处：
引用格式：
[1]Yaokun LI;Jiping CHAO;Yanyan KANG-.Variations in Amplitudes and Wave Energy along the Energy Dispersion Paths for Rossby Waves in the Quasigeostrophic Barotropic Model)[J].大气科学进展（英文版）,2022(06):876-888
A类：
Amplitudes,Quasigeostrophic,Barotropic,quasigeostrophic,nondivergent
B类：
Variations,Energy,along,Dispersion,Paths,Rossby,Waves,Model,energy,amplitude,waves,investigated,solving,equation,barotropic,potential,vorticity,model,results,suggest,that,compared,rays,have,enhanced,meridional,zonal,propagation,accompanied,more,dramatic,variability,both,which,caused,introducing,divergence,effect,free,surface,For,propagating,region,enclosed,turning,critical,approaches,maximum,value,inside,while,develop,when,two,latitudes,minimum,one,other,total,wavenumber,resulting,increases,decreases,significantly,matched,roles,from,basic,flow,group,velocity,contribute,slightly,oscillating,causes,well
AB值：
0.357458
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