Results 21 to 30 of about 10,485 (275)
Adiabatic Rearrangement of Hollow PV Towers
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
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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
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The Kähler potential of Abelian Higgs vortices [PDF]
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.
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Potential Vorticity of Flow along the Alps [PDF]
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
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The persistence of balance in geophysical flows [PDF]
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
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
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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
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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
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Potential Vorticity Dynamics of Tropical Instability Vortices
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
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Potential vorticity patterns in Mediterranean “hurricanes”
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
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