Now showing items 81-90 of 111
Cutoff conditions for transverse circularly polarized electromagnetic waves in a finite temperature electro-magneto-ionic medium
(Elsevier, 1967-10)
The dispersion relation for wave propagation in a homogeneous, electrically neutral electron gas subject to crossed static electric and magnetic fields is derived using the coupled Maxwell-Boltzmann-Vlasov equations. The ...
Simultaneous optical observations of long-period gravity waves during AIDA '89
(Elsevier, 1993-03)
Ground-based optical instrumentation supported the AIDA '89 wind measurement comparisons by describing the gravity waves affecting the 80-100 km altitude region during clear dark hours over Puerto Rico. This study tabulates ...
Observations of neutral winds in the polar cap during northward IMF
(Elsevier, 1994-02)
Long term remote observations of neutral winds at F-region altitudes have been performed at Thule Air Base (lat. 76.5[deg]N, long. 69.0[deg]W), Greenland, and Sondre Stromfjord (lat. 67.0[deg]N, long. 50.9[deg]W), Greenland. ...
Accurate determination of surface normal stress in viscous flow from a consistent boundary flux method
(Elsevier, 1993-06)
Accurate determination of surface normal stresses from numerical modeling of mantle convection is crucial in determining surface topography, geoid and gravity anomalies. With the finite element method, we have developed a ...
Evidence for a shear velocity discontinuity in the lower mantle beneath India and the Indian Ocean
(Elsevier, 1987-11)
SH and sSH seismograms are modeled to determine the shear velocity structure in the D" region beneath India and the Indian Ocean. The signals show waveform complexities similar to those observed in data sampling the D" ...
On the maintenance of the axisymmetric part of the flow in the atmosphere
(Birkhäuser-Verlag; Springer Science+Business Media, 1972-12)
The maintenance of the axisymmetric component of the flow in the atmosphere is investigated by means of a steady-state, quasi-geostrophic formulation of the meteorological equations. It is shown that the meridional variations ...
Factors Impacting Observation-Based Estimates of Urban Greenhouse Gas Emissions
(2018)
Urban areas are responsible for a large and increasing fraction of anthropogenic greenhouse gas emissions. Accurate methods for quantifying and monitoring those emissions are needed to suggest and evaluate mitigation ...
Diagnosing Energy Transfer in an Idealized Ocean-Atmosphere Model: A Frequency-Domain Approach
(2019)
Climate variability is an area of great interest. The ocean and atmosphere, two major components of the climate system, are inherently coupled, and there has been recent interest in deciphering whether oceanic and atmospheric ...
Strong Shock Waves in Highly Porous Materials
(2019)
Strong shock waves traversing through porous materials occur in a broad range of applications. Foamed plastics are a popular material in many high-energy-density physics (HEDP) experiment due to the low, tunable density, ...
CRASH Simulation of Rayleigh-Taylor, Richtmyer-Meshkov, and Magnetic Rayleigh-Taylor Instability.
(2013)
The research discussed in this thesis was motivated by the supernova Rayleigh-Taylor (SNRT) experiments conducted in 2009. Originally designed as laboratory astrophysics experiments relevant to the Rayleigh-Taylor Instability ...