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 “"Geostrophic adjustment"”.
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Theory and Observations of Horizontal and Vertical Structure of Gravity Wave Perturbations in the Middle Atmosphere
… The source of this energy is believed to be geostrophic adjustment of the jet stream.
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The evolution and breakdown of submesoscale instabilities
… will investigate the way in which symmetric and ageostrophic baroclinic instabilities interact when simultaneously present in a flow, with focus on the growth rates and energetic pathways of previously unexplored dynamic instabilities that arise in this paradigm; three-dimensional, mixed …
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On the generation of waves during frontogenesis
… rapidly applied boundary flux --- can trigger an adjustment process which drives frontogenesis on the boundary. These two types of frontogenesis are known as `forced' and `spontaneous', respectively. Forced and spontaneous frontogenesis have typically been studied in isolation, despite it being …
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On the evolution & equilibration of submesoscale fronts
… important biogeochemical tracers in addition to geostrophic momentum. This momentum transport destabilises the balanced thermal wind and can prompt geostrophic adjustment and re-stratification which often leaves remnant inertial oscillations. This thesis sets out to model the impacts of symmetric …
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Modelling turbulence and transport of buoyant material in the ocean surface mixed layer
… simulations of a highly idealised front under geostrophic adjustment. By varying the balanced Rossby number, we show that strong fronts develop a three-dimensional instability which generates turbulence near the top and bottom boundaries. We describe the physical mechanisms at play and the …
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Mixing and dynamics of the Mediterranean outflow
… Further downstream, the outflow becomes a damped geostrophic current. A simple geostrophic adjustment model is used to show that in the absence of frictional stresses, the outflow would very quickly become geostrophically balanced and descend only about 10 m down the continental slope. Thus, …