Global ETD Search
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Showing 1 to 4 of 4 for “"atmospheric gravity waves (AGWs)"”.
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Estimation of Intrinsic Gravity Wave Parameters From Multiple, Ground-Based Observations of a Single Mesopheric Airglow Emission
… 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 large-format CCD cameras retrofitted with spectroscopic …
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Medium Scale Travelling Ionospheric Disturbances sensed with GNSS TEC and SuperDARN
… of electrodynamic instability processes and atmospheric gravity waves (AGWs) in driving the MSTIDs were not determined. GNSS TEC fluctuations associated with the MSTIDs were strong, reaching up to half of background TEC. In SuperDARN, MSTID signatures were observed in power measurements. …
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Application and simulation of imaging Fabry-Perot interferometers to observe the upper atmosphere
… framework to test the ability of FPIs to detect atmospheric gravity waves (AGWs). A two-FPI strategy shows a higher possibility for detecting an AGW when the two FPIs are observing common volumes in the upper atmosphere at orthogonal look directions. We show how periodogram analysis can determine …
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Estimation of the vertical wavelength of atmospheric gravity waves from airglow imagery
… objective of making stereoscopic observations of atmospheric gravity waves (AGWs). As AGWs propagate vertically, they spatially perturb the airglow emission layers in all three dimensions. Estimates of the vertical wavelength, horizontal wavelength, and the intrinsic frequency are needed to …