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A Model for Diffusion of Radioactive Debris in the Troposphere
Publisher: American Meteorological Society
Abstract: A theoretical model is constructed and tested for the analysis and prediction of radioactive concentration in the troposphere. It is found that turbulent motion near the jet core plays the major role in the transport of ...
Governing Equations and Spectra for Atmospheric Motion and Transports in Frequency, Wave-Number Space
Publisher: American Meteorological Society
Abstract: The governing equations, power and cross spectra for the atmospheric motion, and transports in the frequency, wave-number space are derived. Discussions are made of the contributions of the nonlinear interactions of ...
Relative Dispersion of Particles in a Stratified Rotating Atmosphere
Publisher: American Meteorological Society
Abstract: An analysis of the kinetics and dynamics of the relative dispersion of particles in a stratified rotating fluid is made. The expressions for the relative displacement tensor, and the power- and cross-spectra of the relative ...
TRANSFER OF MOMENTUM VORTICITY AND THE MAINTENANCE OF ZONAL CIRCULATION IN THE ATMOSPHERE
Publisher: American Meteorological Society
Abstract: The properties of the volume integral of momentum vorticity are examined. These results are applied to the study of the maintenance of zonal circulation of a polar cap. It is shown that the rate of change of the vertical ...
A Model for Turbulent Diffusion over Terrain
Publisher: American Meteorological Society
Abstract: A statistical model for three-dimensional turbulent diffusion from instantaneous and continuous sources is constructed. It is shown that this diffusion model satisfies the continuity condition and the boundary condition ...
Wavenumber-Frequency Spectra of Temperature in the Free Atmosphere
Publisher: American Meteorological Society
Abstract: An analysis of the wavenumber-frequency spectra of temperature in the free atmosphere is made. It is found that a striking similarity exists between the spectrum of temperature and that of the large-scale wind velocity in ...
Energy Spectra of Meso-Scale Turbulence Along and Across the Jet Stream
Publisher: American Meteorological Society
Abstract: The wind velocities measured by an aircraft flying parallel and perpendicular to jet streams (Project Jet Stream, 1956?1957) have been analyzed; a smoothing technique has been used to separate the meso-scale turbulence ...
Analyses of Isotropic and Anisotropic Turbulent Dispersion of Particles in the Atmosphere
Publisher: American Meteorological Society
Abstract: Analyses of the isotropic and anisotropic diffusion of clusters of fluid particles in the atmosphere are made. Lin's theory of diffusion is subjected to an observational test. The autocorrelation coefficients of the vector ...