Influence of condensation and latent heat release upon barotropic and baroclinic instabilities of vortices in a rotating shallow water f-plane model

@article{Rostami2017InfluenceOC,
  title={Influence of condensation and latent heat release upon barotropic and baroclinic instabilities of vortices in a rotating shallow water f-plane model},
  author={Masoud A. Rostami and Vladimir Zeitlin},
  journal={Geophysical \& Astrophysical Fluid Dynamics},
  year={2017},
  volume={111},
  pages={1 - 31}
}
  • M. Rostami, V. Zeitlin
  • Published 2 January 2017
  • Environmental Science, Physics
  • Geophysical & Astrophysical Fluid Dynamics
Analysis of the influence of condensation and related latent heat release upon developing barotropic and baroclinic instabilities of large-scale low Rossby-number shielded vortices on the f-plane is performed within the moist-convective rotating shallow water model, in its barotropic (one-layer) and baroclinic (two-layer) versions. Numerical simulations with a high-resolution well-balanced finite-volume code, using a relaxation parameterisation for condensation, are made. Evolution of the… 
Instabilities of low-latitude easterly jets in the presence of moist convection and topography and related cyclogenesis, in a simple atmospheric model
A simple two-layer model, the moist-convective rotating shallow water, which allows for low-cost high-resolution numerical simulations of the dynamics of the moist atmosphere in the presence of
Evolution, propagation and interactions with topography of hurricane-like vortices in a moist-convective rotating shallow-water model
Abstract The so-called moist-convective shallow-water model, which incorporates moist convection in a simple albeit self-consistent way is used to analyse how intense localized vortices, with
Moist-convective thermal rotating shallow water model
We show how the moist-convective rotating shallow water model, where the moist convection and the related latent heat release are incorporated into the standard rotating shallow water model of the
Eastward-moving equatorial modons in moist-convective shallow-water models
It is shown that steady large-scale slowly eastward-moving twin-cyclone coherent structures, the equatorial modons, exist in both one- and two layer versions of the rotating shallow water model on
Understanding dynamics of Martian winter polar vortex with “improved” moist-convective shallow water model
We show how the properties of the Mars polar vortex can be understood in the framework of a simple shallow-water type model obtained by vertical averaging of the adiabatic “primitive” equations, and
Turbulence and equatorial waves in moist and dry shallow‐water flow, excited through mesoscale stochastic forcing
Turbulence and large‐scale waves in the tropical region are studied using the spherical shallow‐water equations. With mesoscale vorticity forcing, both moist and dry systems show an upscale transfer
Geostrophic adjustment on the equatorial beta-plane revisited
The process of geostrophic adjustment of localized large-scale pressure anomalies in the standard adiabatic shallow-water model on the equatorial beta-plane is revisited, and it is shown that the
Turbulence and equatorial waves in moist and dry shallow water systems
Turbulence and large-scale waves in the tropical region are studied using the spherical shallow water equations. With mesoscale vorticity forcing, both moist and dry systems show kinetic energy
Moist shallow‐water response to tropical forcing: Initial‐value problems
  • D. Suhas, J. Sukhatme
  • Environmental Science, Physics
    Quarterly Journal of the Royal Meteorological Society
  • 2020
The response of a spherical moist shallow‐water system to tropical imbalances in the presence of inhomogeneous saturation fields is examined. While the initial moist response is similar to the dry
...
...

References

SHOWING 1-10 OF 32 REFERENCES
Moist versus Dry Baroclinic Instability in a Simplified Two-Layer Atmospheric Model with Condensation and Latent Heat Release
AbstractThe authors undertake a detailed analysis of the influence of water vapor condensation and latent heat release upon the evolution of the baroclinic instability. The framework consists in a
Moist versus Dry Barotropic Instability in a Shallow-Water Model of the Atmosphere with Moist Convection
AbstractDynamical influence of moist convection upon development of the barotropic instability is studied in the rotating shallow-water model. First, an exhaustive linear “dry” stability analysis of
Understanding Instabilities of Tropical Cyclones and Their Evolution with a Moist Convective Rotating Shallow-Water Model
AbstractInstabilities of hurricane-like vortices are studied with the help of a rotating shallow-water model, including the effects of moist convection. Linear stability analysis demonstrates that
Centrifugal, barotropic and baroclinic instabilities of isolated ageostrophic anticyclones in the two-layer rotating shallow water model and their nonlinear saturation
Abstract Instabilities of isolated anticyclonic vortices in the two-layer rotating shallow water model are studied at Rossby numbers up to two, with the main goal to understand the interplay between
The role of moisture in the dynamics and energetics of turbulent baroclinic eddies
The effects of moisture on nonlinear baroclinic eddies are examined in the context of a horizontally homogeneous two-layer quasigeostrophic model. Using an explicit equation for moisture and a simple
Simplified two-layer models of precipitating atmosphere and their properties
We derive a two-layer rotating shallow-water model for a moist atmosphere with water vapor condensation and related diabatic heating. Moist convection is represented by additional mass exchanges
Vortex multipoles in two-layer rotating shallow-water flows
The stability of elliptically perturbed circular vortices is investigated in a two-layer shallow-water model, with constant background rotation. The fluid is bounded above and below by rigid and at
Numerical Simulation of the Life Cycle of Tropical Cyclones
Abstract The tropical cyclone is a solitary creature of the tropical oceans accompanied by violent rotating winds and torrential rain. Observational studies and diagnostic analyses leave little doubt
Studies of moisture effects in simple atmospheric models: The stable case
Abstract The shallow-water equations are supplemented by a moisture equation in order to model effects of latent heat release on the horizontal propagation of disturbances. Since latent heating in
Hurricane formation in diabatic Ekman turbulence
This article investigates the emergence of hurricanes from chaotic swirling motions in a three‐layer model of the tropical troposphere that includes basic parametrizations of cumulus convection and
...
...