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ON THE DYNAMICS OF SUBTROPICAL UPPER-TROPOSPHERIC QUASI-STATIONARY VORTICES IN NORTHERN SUMMER
作者姓名:Zhu  Zhengxin
作者单位:Nanjing Institute
摘    要:In this paper the dynamic mechanism of the subtropical quasi-stationary vortices in the upper troposphere,such as the southern Asia high and the mid-oceanic troughs,are studied with a highly truncated spectral model,in which the thermal forcing and the nonlinear interaction between wave and zonal components,as well asthe basic zonal flow changing with latitudes are incorporated.The results show a stable equilibrium statewith an upper level fiow field similar to the observed subtropical systems.It is found that the thermal forc-ing has some important controlling effects on these planetary-scale vortices.

收稿时间:1987/5/11 0:00:00

ON THE DYNAMICS OF SUBTROPICAL UPPER-TROPOSPHERIC QUASI-STATIONARY VORTICES IN NORTHERN SUMMER
Zhu Zhengxin.ON THE DYNAMICS OF SUBTROPICAL UPPER-TROPOSPHERIC QUASI-STATIONARY VORTICES IN NORTHERN SUMMER[J].Acta Meteorologica Sinica,1988,2(2):156-163.
Authors:Zhu Zhengxin
Institution:Nanjing Institute of Meteorology, Nanjing
Abstract:In this paper the dynamic mechanism of the subtropical quasi-stationary vortices in the upper troposphere,such as the southern Asia high and the mid-oceanic troughs,are studied with a highly truncated spectral model,in which the thermal forcing and the nonlinear interaction between wave and zonal components,as well as the basic zonal flow changing with latitudes are incorporated.The results show a stable equilibrium statewith an upper level fiow field similar to the observed subtropical systems.It is found that the thermal forcing has some important controlling effects on these planetary-scale vortices.
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