Search
Now showing items 1-10 of 27
The Application of Linear Quasigeostrophic Dynamics to Gulf Stream Rings
Publisher: American Meteorological Society
Abstract: We have used linear quasigeostrophic dynamics to calculate the motion, decay and dispersion rates of radially symmetric initial disturbances with scales appropriate to Gulf Stream Rings. Baroclinic rings translate westward ...
Rossby Wave Radiation from a Strongly Nonlinear Warm Eddy
Publisher: American Meteorological Society
Abstract: One of the serious flaws in the standard quasi-geostrophic equations, commonly used for understanding the evolution of mesoscale eddies, is the requirement that the change in thickness between density surfaces must be small ...
Formation of Jets by Baroclinic Instability on Gas Planet Atmospheres
Publisher: American Meteorological Society
Abstract: In this paper it is proposed that baroclinic instability of even a weak shear may play an important role in the generation and stability of the strong zonal jets observed in the atmospheres of the giant planets. The ...
The Contribution of Striations to the Eddy Energy Budget and Mixing: Diagnostic Frameworks and Results in a Quasigeostrophic Barotropic System with Mean Flow
Publisher: American Meteorological Society
Abstract: ow-frequency oceanic motions have banded structures termed ?striations.? Since these striations embedded in large-scale gyre flows can have large amplitudes, the authors investigated the effect of mean flow on their ...
XBT Measurements of Thermal Gradients in the MODE Eddy
Publisher: American Meteorological Society
Abstract: Estimates of the repeatability and accuracy of XBT measurements were made using XBT data taken during MODE. The XBT observations of the depth of isotherms had systematic errors of up to 15 decibars (by comparison to ...
Intense Vortex Motion on the Beta Plane: Development of the Beta Gyres
Publisher: American Meteorological Society
Abstract: An analytical theory is presented for the self-induced translation of an intense vortex relative to a uniform background flow on the ? plane. The equivalent barotropic approximation is used to formulate the initial value ...
Cross-Shelf and Out-of-Bay Transport Driven by an Open-Ocean Current
Publisher: American Meteorological Society
Abstract: his paper studies the interaction of an Antarctic Circumpolar Current (ACC)?like wind-driven channel flow with a continental slope and a flat-bottomed bay-shaped shelf near the channel?s southern boundary. Interaction ...
A Description of Local and Nonlocal Eddy–Mean Flow Interaction in a Global Eddy-Permitting State Estimate
Publisher: American Meteorological Society
Abstract: he assumption that local baroclinic instability dominates eddy?mean flow interactions is tested on a global scale using a dynamically consistent eddy-permitting state estimate. Interactions are divided into local and ...
Quantifying and Interpreting Striations in a Subtropical Gyre: A Spectral Perspective
Publisher: American Meteorological Society
Abstract: he amplitude, origin, and direction of striations in the subtropical gyre are investigated using simulated and analytical multidimensional spectra. Striations, defined as banded structures in the low-frequency motions, ...
On the Evolution of Isolated, Nonlinear Vortices
Publisher: American Meteorological Society
Abstract: The evolution of an isolated, axially symmetric vortex is calculated with a quasi-geostrophic, adiabatic, hydrostatic. ?-plane, two vertical mode model. The circumstances of greatest interest are those of weak friction and ...