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Investigating Small-Scale Dynamical Features In The Mesopause Region, Deepak B. Simkhada
Investigating Small-Scale Dynamical Features In The Mesopause Region, Deepak B. Simkhada
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Utilizing analyses of observational data, we performed a detailed study to investigate short-period atmospheric gravity waves and ripples, and instabilities in the mesopause region. Recent coordinated measurements from Haleakala Observatory, Maui, HI via airglow wave imaging, meteor wind radar, and Na wind temperature lidar have provided a unique dataset for this study. Gravity waves generated in the lower atmosphere propagate energy upwards into the mesosphere and lower thermosphere region where they modulate the airglow emissions, and later break and deposit their momentum, causing significant perturbations in winds and temperatures. Ripples, on the other hand, are likely generated by localized shear …