A Dynamical Study of Gravity Waves and Instabilities in the Mesopause Region at Maui, Hawaii
Li, Feng
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https://hdl.handle.net/2142/85966
Description
Title
A Dynamical Study of Gravity Waves and Instabilities in the Mesopause Region at Maui, Hawaii
Author(s)
Li, Feng
Issue Date
2005
Doctoral Committee Chair(s)
Swenson, Gary R.
Department of Study
Atmospheric Sciences
Discipline
Atmospheric Sciences
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Geophysics
Language
eng
Abstract
A ray-tracing simulation was performed to explore whether the interactions between tides and oppositely-propagating waves could explain the observed double-layer structure of large N2/strong wind shear. It is found, using the GROGRAT model, that tidal modulation has two effects on the wave propagation: (1) wave breaking levels descend at a tidal phase. (2) breaking levels for oppositely-propagating waves are separated by ∼10 km. The model results are qualitatively very similar to the observations.
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