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 6 of 6 for “"Airglow Imager"”.
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An Observational Investigation on Gravity Wave Characteristics and Propagation in the Lower Stratosphere and Mesopause
… at South Pole and the mesopause region using OH airglow imager at Maui, Hawaii and Cerro Pachon, Chile. Wave characteristics at these regions are deduced and the seasonal variation of wave activity, wave sources, and propagation effect are studied. The study of gravity waves in the lower …
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Dynamical Processes of Gravity Waves Propagation and Dissipation, and Statistical Characteristics of Their Momentum Flux in the Mesosphere and Lower Thermosphere
… studies are based on the data acquired from an airglow imager and a sodium lidar, with the assistance of some simulation data from a meso-scale numerical model and GCMs.</p> <p>To understand the dynamical processes in gravity wave propagation and dissipation, a gravity wave should be resolved as …
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Middle Atmosphere Structure and Dynamics: Lidar Studies and Gravity Wave Spectral Modeling
… and the existing DFT model predictions. Airglow and Na-layer parameter spectra are important because they can be used to characterize the small vertical wave number region of the wave spectrum, which is relatively unaffected by dissipation. The new DFT model is used to model the …
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Investigation of Mountain Waves in the Mesosphere over the Andes Mountains
… developed to analyze data from a NIR All-Sky Imager of OH airglow emission (from about 87 km altitude), located in the Andes, with the purpose of investigating the atmospheric gravity waves generated when low level wind blows over the high mountains (referred to as Mountain Waves). These types …
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Radio and Optical Techniques for Locating Equatorial Plasma Irregularities
… equatorial regions using radio occultation and airglow imaging is presented. A similar technique is employed to study the relationship between Bragg-scale radar backscatter and depletions observed with the airglow imager. A climatology of airglow and radar data from the central Pacific that …
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Evaluating the Capability of ICON-MIGHTI to Detect Plasma Bubbles in the Ionosphere
The MIGHTI airglow imager onboard the ICON spacecraft in LEO was built to make remote thermospheric windspeed measurements at low latitudes. The MIGHTI team, when reviewing the data, observed variations in day-to-day brightness potentially indicative of plasma bubbles: regions of low-density …