大气和海洋科学快报（英文版）2021，Vol.14Issue(3)：1-6,6.
IAP-AGCM对QBO模拟的动量收支分析
Simulation of the QBO in IAP-AGCM: Analysis of momentum budget
摘要
Abstract
The quasi-biennial oscillation (QBO),a dominant mode of the equatorial stratospheric (～100-1 hPa) variability,is known to impact tropospheric circulation in the middle and high latitudes.Yet,its realistic simulation in general circulation models remains a challenge.The authors examine the simulated QBO in the 69-layer version of the Institute of Atmospheric Physics Atmospheric General Circulation Model (IAP-AGCML69) and analyze its momentum budget.The authors find that the QBO is primarily caused by parameterized gravity-wave forcing due to tropospheric convection,but the downward propagation of the momentum source is significantly offset by the upward advection of zonal wind by the equatorial upwelling in the stratosphere.Resolved-scale waves act as a positive contribution to the total zonal wind tendency of the QBO over the equator with comparable magnitude to the gravity-wave forcing in the upper stratosphere.Results provide insights into the mechanism of the QBO and possible causes of differences in models.关键词
平流层准两年振荡/重力波/动量收支/纬向风Key words
QBO/Gravity waves/Momentum budget/Zonal wind引用本文复制引用
Zhaoyang Chai,Minghua Zhang,Qingcun Zeng,Jinbo Xie,Ting You ,He Zhang..IAP-AGCM对QBO模拟的动量收支分析[J].大气和海洋科学快报（英文版）,2021,14(3):1-6,6.基金项目
This research was supported by the National Major Research High Performance Computing Program of China[grant number 2016YFB0200800],the National Natural Science Foundation of China[grant numbers 41630530 and 41706036],and the National Key Scientific and Technological Infrastructure project "Earth System Science Numerical Simulator Facility" (EarthLab). （EarthLab）
