Search
Now showing items 1-10 of 267
Effect of Nonlinear Instability on Gravity-Wave Momentum Transport
Publisher: American Meteorological Society
Abstract: Internal gravity waves, and the stress divergence and turbulence induced by them, are essential components of the atmospheric and oceanic general circulations. Theoretical studies have not yet reached a consensus as to how ...
Nonlinear Hadley Circulation Driven by Asymmetric Differential Heating
Publisher: American Meteorological Society
Abstract: The dynamical state of the stratosphere influenced by radiative heating, with no internal sources or sinks of angular momentum, is examined. It is shown that there exists a nonlinear Hadley regime driven by antisymmetric ...
Waste Heat Recovery Potential of Advanced Internal Combustion Engine Technologies
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Coupling waste heat recovery with internal combustion engines creates opportunities to improve overall system efficiency and power output. The internal combustion engine has multiple pathways for dissipating thermal energy; ...
Eigenfrequencies and Horizontal Structure of Divergent Barotropic Instability Originating in Tropical Latitudes
Publisher: American Meteorological Society
Abstract: Instabilities arising on a latitudinally sheared mean flow fall into one of at least two classes: inertial instabilities associated with a reversed potential vorticity and barotropic instabilities associated with a reversed ...
A Two-Dimensional Model of the Quasi-Biennial Oscillation
Publisher: American Meteorological Society
Abstract: The quasi-biennial oscillation is simulated in two dimensions using a WKB approach for the equatorial waves in which analytic approximations to the wave-induced body forces are inserted as forcing terms in a primitive ...
Nonlinear Propagation of Zonal Winds in an Atmosphere with Newtonian Cooling and Equatorial Wavedriving
Publisher: American Meteorological Society
Abstract: Advection of angular momentum by the mean meridional circulation is important in the quasi-biennial and semiannual oscillations of the tropical middle atmosphere. The advection is nonlinear, implying a finite horizontal ...
Inertial Instability of Nonparallel Flow on an Equatorial β Plane
Publisher: American Meteorological Society
Abstract: A simple theoretical model was developed to investigate the inertial instability of zonally nonuniform, non-parallel flow near the equator. The basic state was independent of height and time but included cross-equatorial ...
Observation of 3–6-Day Meridional Wind Oscillations over the Tropical Pacific, 1973–1992: Vertical Structure and Interannual Variability
Publisher: American Meteorological Society
Abstract: Rawinsonde data from tropical Pacific stations were examined for westward-propagating 3?6-day meridional wind oscillations in the troposphere and lower stratosphere, 1973?1992. Four types were identified from cross- spectrum ...
A Mechanism for Shear Band Formation in the High Strain-Rate Torsion Test
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical study of a one-dimensional model of the high strain-rate torsion test shows that a moving boundary of rigid unloading, starting from the ends of the thin-walled tubular specimen, ...
Body Force Circulation and the Antarctic Ozone Minimum
Publisher: American Meteorological Society
Abstract: The decelerating effect of enhanced upper tropospheric wavedriving (DF) in winter and early spring induces a ?reverse? component of the residual mean meridional circulation in the polar lower stratosphere opposite to that ...
CSV
RIS