During that period Chuck remained an active research scientist contributing new ideas with publications on the relationship of nonlinear normal mode initialization to quasigeostrophic
and balanced models and on the theory of minimum enstrophy vortices.
25), (35) are two quasigeostrophic
barotropic models under variable topographic conditions with time t.
Numerical Studies of Mesoscale Eddies Using Quasigeostrophic
and Primitive Equation Ocean Models, National Center for Atmospheric Research (NCAR) Cooperative Thesis No.
2005), and a quasigeostrophic
three-layer model on the sphere with realistic orography (Franzke and Majda 2006).
2013) use a linear discriminant analysis (Friedman 1989) to assign each tropical cyclone to one of five categories depending on a pair of metrics: lower-level thickness asymmetry (Th) and upper-level quasigeostrophic forcing for ascent (Q).
The reduced static stability also leads to an increased Rossby penetration depth, which promotes vertical connections between the upper- and lower-level perturbations (DeMaria 1996), and leads to enhancement of both the developing secondary circulation and the vertical motions resulting from quasigeostrophic forcing for ascent downshear of the upper-level trough (Kelly and Mock 1982).
3) progressive straining of tracer fields to smaller scales by mesoscale processes adequately described by quasigeostrophic
Gyakum, 1999: An analysis of Hurricane Opal's forecast track using quasigeostrophic
potential vorticity inversion.
forcing of ascent in the occluded sector of cyclones and the trowal airstream.
With the advent of the programmable digital computer in the immediate post-World War II (WWII) period, Jule Charney and the team at Princeton's Institute for Advanced Study (IAS) made several 24-h forecasts of the large-scale features of the hemispheric circulation based on quasigeostrophic
principles; advection of the geostrophic vorticity by the geostrophic wind (Charney 1948; Charney et al.
A second course is often comprised from a number of chapters addressing quasigeostrophic
(QG) theory, waves, the boundary layer, and baroclinic instability.
While at Scripps Institute of Oceanography (SIO), she worked with Rick Salmon investigating baroclinic instabilities using numerical modeling of surface quasigeostrophic
flow over topography.