Stationary Eddy Response to Surface Boundary Forcing: Idealized GCM Experiments*
Stationary Eddy Response to Surface Boundary Forcing: Idealized GCM Experiments*
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表面边界强迫的稳态涡流响应：理想化的 GCM 实验*
DOI：
10.1175/1520-0469(2002)059
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发表时间：
2002
影响因子：
3.1
通讯作者：
S. Xie
中科院分区：
文献类型：
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作者：
M. Inatsu;H. Mukougawa;S. Xie
摘要利用一组理想条件下的大气环流模式（AGCM）试验，研究了热带外海陆对比、大尺度地形和热带海表温度（SST）分布对大气边界强迫的响应。静止涡旋强迫的extratrophic陆-海分布是最强的高纬度地区，但其振幅是温和的，相当于内部混乱的变化。相反，定常涡动对热带SST纬向变化的响应在副热带和中纬度都很强。虽然这些SST强迫驻波被困在对流层内，那些由地形引起的表现出强烈的垂直传播到平流层。瞬变涡旋的分析表明，地形是有效的，在生成一个纬向本地化的风暴轴，而热带外的海陆对比的上层风暴活动的纬向变化的影响不大。一个涡度预算...
Abstract A set of atmospheric general circulation model (AGCM) experiments under idealized conditions is performed to investigate atmospheric response to surface boundary forcing by extratropical land–sea contrast, large-scale orography, and tropical sea surface temperature (SST) distribution. Stationary eddies forced by the extratropical land–sea distribution are strongest in high latitudes, but their amplitudes are modest and comparable to internal chaotic variability. By contrast, the stationary eddy response to zonal variations in tropical SST is strong and robust in both the subtropics and midlatitudes. While these SST-forced stationary waves are trapped within the troposphere, those induced by orography show a strong vertical propagation into the stratosphere. Analysis of transient eddies indicates that orography is effective in generating a zonally localized storm track while extratropical land–sea contrast has little effect on the zonal variation of upper-level storm activity. A vorticity budget a...
Watanabe, M., M. Kimoto, M. Kachi, T. Nitta：“观测和耦合 GCM 中检测到的北大西洋年代际气候振荡的比较。J.气候”J。
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