publication . Article . 2011

The influence of tropospheric static stability on upper-level frontogenesis

Marcel Saute;
Open Access English
  • Published: 30 Dec 2011
  • Publisher: HAL CCSD
  • Country: France
Abstract
Upper-level frontogenesis in an inviscid, dry and adiabatic fluid forced by confluence is investigated by means of a two-dimensional semi-geostrophic model using the specific volume as an isentropic vertical coordinate. The initial conditions are specified given an analytical continuous potential vorticity field in the presence of a temperature contrast at the ground, the lower boundary condition requiring an appropriate treatment because the ground intersects the first levels of the model. The paper has concentrated on the role of the horizontal variations of low and middle tropospheric potential vorticity in the intensification of the upper-level jet-front sys...
Subjects
arXiv: Physics::Atmospheric and Oceanic Physics
free text keywords: [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph], Atmospheric Science, Oceanography, Potential vorticity, Frontogenesis, Atmospheric sciences, Inviscid flow, Warm front, Environmental science, Troposphere, Boundary value problem, Adiabatic process, Vorticity
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