Hydrodynamic Instability of the Periodic System of Updrafts and Downdrafts in the Atmosphere
- 作者: Kalashnik M.1,2, Kurgansky M.1
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隶属关系:
- Obukhov Institute of Atmospheric Physics
- Taifun Research and Production Association
- 期: 卷 43, 编号 11 (2018)
- 页面: 729-736
- 栏目: Article
- URL: https://journals.rcsi.science/1068-3739/article/view/230788
- DOI: https://doi.org/10.3103/S1068373918110031
- ID: 230788
如何引用文章
详细
The linear hydrodynamic instability of the spatially periodic system of updrafts and downdrafts in a stably stratified atmosphere is studied. Such formulation of the problem is used to simulate the cloud systems observed in the atmosphere, when the zones of updrafts correspond to clouds and those of downdrafts correspond to intercloud intervals. A rather unexpected conclusion was made that the consideration of turbulent viscosity and thermal conductivity of the atmosphere as well as of radiative cooling leads to the instability at the Richardson numbers exceeding the critical value of 1/8 for the nondissipative case.
作者简介
M. Kalashnik
Obukhov Institute of Atmospheric Physics; Taifun Research and Production Association
Email: kurgansk@ifaran.ru
俄罗斯联邦, Pyzhevskii per. 3, Moscow, 119017; pr. Lenina 82, Obninsk, Kaluga oblast, 249020
M. Kurgansky
Obukhov Institute of Atmospheric Physics
编辑信件的主要联系方式.
Email: kurgansk@ifaran.ru
俄罗斯联邦, Pyzhevskii per. 3, Moscow, 119017