Results 21 to 30 of about 10,485 (275)

Adiabatic Rearrangement of Hollow PV Towers

open access: yesJournal of Advances in Modeling Earth Systems, 2010
Diabatic heating from deep moist convection in the hurricane eyewall produces a towering annular structure of elevated potential vorticity (PV). This structure has been referred to as a hollow PV tower.
Eric A Hendricks, Wayne H Schubert
doaj   +1 more source

Effect of Typhoon-Generated Cold Wake on the Subsequent Typhoon Tembin and Its Sensitivity to Horizontal Resolutions

open access: yesAtmosphere, 2019
Weather research models have been used to investigate the sensitivity of simulations of Typhoon Tembin (1214) to changes in three horizontal grid spacings and the effect of the cold wake generated by Typhoon Bolaven (1215).
Mincheol Moon, Kyung-Ja Ha
doaj   +1 more source

The Kähler potential of Abelian Higgs vortices [PDF]

open access: yesJournal of Mathematical Physics, 2005
We calculate the Kähler potential for the Samols metric on the moduli space of Abelian Higgs vortices on R2, in two different ways. The first uses a scaling argument. The second depends on a variant of the relationship between accessory parameters and the regularized action in Liouville field theory. The Kähler potential on the moduli space of vortices
Chen, Heng-Yu, Manton, N. S.
openaire   +3 more sources

Potential Vorticity of Flow along the Alps [PDF]

open access: yesJournal of the Atmospheric Sciences, 1993
Abstract Observations from the German Front Experiment are presented here that show the existence—in conditions with a dominant flow component parallel to the main Alpine chain—of a mesoscale region to the north of the Alps where the absolute and potential vorticity (PV) are substantially negative. These structures exist before the front arrives to the
Thorpe, Alan .J.   +2 more
openaire   +2 more sources

The persistence of balance in geophysical flows [PDF]

open access: yes, 2007
This paper introduces a novel, powerful way to understand the why geophysical flows are largely under the control of a single scalar field, the potential vorticity, a materially conserved dynamical tracer in the absence of viscous and diabatic effects ...
Viudez, A, Dritschel, David Gerard
core   +1 more source

Role of Westerly Jet in Torrential Rainfall During Monsoon Over Northern Pakistan

open access: yesEarth and Space Science, 2020
Pakistan experiences several torrential rainfall events for many years due to interactive role of midlatitude atmospheric and warm moist monsoon circulations.
Amna Bibi   +4 more
doaj   +1 more source

The Dynamical Structure of a Warm Core Ring as Inferred from Glider Observations and Along-Track Altimetry

open access: yesRemote Sensing, 2021
This study investigates the vertical structure of the dynamical properties of a warm-core ring in the Gulf of Mexico (Loop Current ring) using glider observations.
Thomas Meunier   +6 more
doaj   +1 more source

Tropical cyclone rapid intensification and the excitation of inertia-gravity waves on the edges of an evolving potential vorticity structure

open access: yesFrontiers in Earth Science, 2022
The problem of tropical cyclone rapid intensification is reduced to a potential vorticity (PV) equation and a second order, inhomogeneous, partial differential equation for the azimuthal wind.
Wayne H. Schubert, Richard K. Taft
doaj   +1 more source

Potential Vorticity Dynamics of Tropical Instability Vortices

open access: yesJournal of Physical Oceanography, 2014
Abstract Tropical instability vortices (TIVs) in the equatorial Pacific exhibit energetic horizontal and vertical circulation characterized by regions of high Rossby number and low Richardson number. Their strong anticyclonic vorticity and vertical shear can influence the broader-scale circulation by driving lateral mixing and vertical ...
Leif N. Thomas   +3 more
openaire   +1 more source

Potential vorticity patterns in Mediterranean “hurricanes”

open access: yesGeophysical Research Letters, 2017
AbstractThe potential vorticity (PV) anomalies due to the intrusion of dry stratospheric air and those generated by the tropospheric diabatic latent heating are qualitatively analyzed for five Mediterranean tropical‐like cyclones (also known as Medicanes).
M. M. Miglietta   +4 more
openaire   +5 more sources

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