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 “"Sudden Stratospheric Warmings"”.
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Dynamical Influences of Sudden Stratospheric Warmings on Surface Climate
Abstract The stratospheric winter polar vortex consists of strong westerly winds; this winter flow regime can undergo a complete breakdown during sudden stratospheric warming events. In the Northern Hemisphere these events are often accompanied by the descent of anomalous flow regimes which can …
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Dynamic coupling of the stratosphere with the troposphere and sudden stratospheric warmings.
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1972.
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The role of wavenumber one and two in the development of sudden stratospheric warmings
… have implications for the predictability of sudden stratospheric warmings (SSWs), theories on the developments of vortex splits and the role of zonal winds in the tropics. In Chapter 2, we use correlations and regressions to demonstrate that the tropopause affects wavenumber one amplitudes …
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A Survey of Seasonal, Hemispheric and Interannual Variations in the Gravity Wave Spectrum in the Upper Stratosphere and Lower Mesosphere
… the years 2019–2021 are examined, covering both stratospheric and mesospheric altitudes and focusing on four representative months: January, February, July, and August. CIPS and AIRS datasets are processed using custom-built spectral analysis pipelines to extract horizontal wavelengths, …
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Far-flung influences on midlatitude weather and climate: The stratospheric pathway
The variability of the Northern Hemisphere stratospheric polar vortex can significantly influence, and enhance the predictability of, midlatitude winter weather on timescales of weeks to months – including the likelihood of weather extremes and associated impacts. This thesis first explores the …
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Understanding Middle Atmospheric Composition Variability from the Solar Occultation for Ice Experiment Instrument and Other Datasets
… the middle atmosphere. Dynamic events such as Sudden Stratospheric Warmings (SSW) impact the temperature gradient and the zonal mean wind pattern in the stratopause. Descent events triggered by SSWs result in enhanced transport of species from the lower thermosphere to the stratosphere. …
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The influence of Arctic sea-ice loss on mid-latitude weather and climate: exploring sensitivities and mechanisms
… mid-latitudes, through various tropospheric and stratospheric mechanisms. However, the nature of the response to Arctic sea-ice loss and the mechanisms involved remain uncertain. This is because it is difficult to disentangle the complex web of potential processes involved, the modelled response …