Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"airglow emissions"”.
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Estimation of Intrinsic Gravity Wave Parameters From Multiple, Ground-Based Observations of a Single Mesopheric Airglow Emission
… simultaneous observations of mesospheric airglow emissions to estimate key intrinsic parameters of atmospheric gravity waves (AGWs). As AGWs propagate through the mesosphere, they spatially and temporally perturb mesospheric airglow emissions, which, from the ground, can be imaged using …
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Gravity waves and ripples near the mesopause above Davis Station, Antarctica. 1999-2013
Ground-based observations of infrared OH* airglow emissions made during the period February-October from 1999-2013 at Davis Station, Antarctica (68.6˚S, 78˚E) are analysed to construct a climatology of the horizontal characteristics of short-period gravity waves (GWs) and ripples near the mesopause …
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Rocket Borne Measurements of a Near-Infrared Vehicle Induced Emission with a Newly Designed Spectrograph
… detector array measured the mesospheric hydroxyl airglow emissions during the initial ascent as well as the vehicle induced glow through the mesopause at eight discreet bandpasses. Data collected shows moderate agreement with previous measurements by Murtagh et al. [1997] and Lopez-Moreno et al. …
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Application and simulation of imaging Fabry-Perot interferometers to observe the upper atmosphere
… by observing the naturally occurring airglow emissions in the thermosphere. This dissertation focuses on the simulation and application of the FPI to study the upper atmosphere. A framework is developed, including a forward model based upon climatological and empirical models to …
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Atmospheric and Ionospheric Responses to Acoustic and Gravity Waves Driven by Earthquakes and Tsunamis
… and tsunamis, and their effects on mesopause airglow and ionospheric plasma.</p> <p>First, we examine coupling mechanisms based on case studies for two inland earthquakes. We demonstrate that the incorporation of near-epicentral seismic wave dynamics, based on earthquake finite-fault models, …
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Optical studies of the mesospheric region
… observations of the 557.7nm OI and 730nm OH airglow emissions. Data have been collected on an almost continuous basis since May 1995 through to May 2000, with observations made whenever the moon was not up. Techniques and analysis procedures have been developed which allow routine extraction …
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A Full-Wave Investigation of the Use of a 'Cancellation Factor' in GW-Airglow Interaction Studies
… species involved in the chemical reactions of airglow emissions in the mesopause region of the earth's atmosphere. The so-called 'Cancellation Factor' (CF) is defined as a transfer function relating the amplitude of airglow brightness fluctuation to the amplitude of GW-induced fluctuation in …