Initial investigations of precipitating quasi-geostrophic turbulence with phase changes
Initial investigations of precipitating quasi-geostrophic turbulence with phase changes
复制标题
相变准地转湍流的初步研究
DOI:
10.1007/s40687-020-00242-3
复制
发表时间:
2021
影响因子:
1.2
通讯作者:
Stechmann, Samuel N.
中科院分区:
文献类型:
--
作者:
Hu, Rentian;Edwards, Thomas K.;Smith, Leslie M.;Stechmann, Samuel N.
Asymptotic models have provided valuable insight into the atmosphere and its dynamics. Nevertheless, one shortcoming of the classic asymptotic models, such as the quasi-geostrophic (QG) equations, is that they describe a “dry” atmosphere and do not account for water vapor, clouds, and rainfall. Recently, precipitating QG (PQG) equations were derived in an asymptotic limit, starting from atmospheric equations that include changes of water between different phases (vapor, liquid, etc.). The PQG equations include Heaviside nonlinearities due to phase changes, which can potentially have a significant influence on QG turbulence. Here, simple numerical methods are presented for the PQG equations, accounting for the Heaviside nonlinearities, and an initial set of numerical experiments is conducted to probe the behavior of PQG turbulence. A two-vertical-level setup is used for an idealized vertical structure, as in the classic Phillips model. Due to phase changes and rainfall, the mid-latitude jet variability displays a variety of behaviors, including poleward propagation of the latitude of the jet. The simulations suggest a new set of phenomena that arise in QG turbulence due to phase changes, in a simplified model that is potentially amenable to mathematical analysis.
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DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
Alexandre Dutrifoy;S. Schochet;A. Majda
通讯作者:
A. Majda
影响因子:
3.4
作者:
R. Klein;A. Majda
通讯作者:
R. Klein;A. Majda
DOI:
--
发表时间:
2003
影响因子:
11.1
作者:
R. Abramov;A. Majda
通讯作者:
A. Majda
影响因子:
3.2
作者:
I. Grooms;A. Majda;K. Shafer Smith
通讯作者:
K. Shafer Smith
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
Alexandre Dutrifoy;A. Majda
通讯作者:
A. Majda