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 20 of 32 for “"CYCLOGENESIS"”.
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Cyclogenesis diagnosed with potential vorticity
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1990.
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Hydrodynamics of Cyclogenesis from Numerical Simulations
Cyclogenesis is referred to as a transition of low-pressure disturbances on the tropical ocean into a more symmetric warm-core cyclone. This has been studied in detail for the past 100 years. However, no laboratory analogue for tropical cyclones has been discovered to date. Thus, the fundamental …
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Possible mechanisms of explosive maritime cyclogenesis
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology and Physical Oceanography, 1983.
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Mesoscale cyclogenesis: the Massaschusetts mini-snowstorm of December 1971,
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1973.
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Spontaneous tropical cyclogenesis in a cloud revolving numerical model
In this thesis, spontaneous tropical cyclogenesis occurring in a cloud-resolving numerical model is studied. The model environment is one of radiative convective-equilibrium on an f-plane with doubly periodic boundary conditions and constant sea surface temperature. While a variety of initial …
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Multi-scale interactions leading to tropical cyclogenesis in sheared environments
… or not to be, that is the question of tropical cyclogenesis. Only a small fraction of tropical disturbances eventually develop into tropical cyclones (TCs). Accurate forecasts of tropical cyclogenesis are difficult because TC development involves a wide range of scales from the stochastic …
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Small-scale cyclogenesis during the genesis of Atlantic lows experiment
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1990.
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The Role of Marine Thermal Gradient Structure on Gulf Stream-related Extratropical Cyclogenesis
… by most to be an epicenter of extratropical cyclogenesis. This is a three part study combining a 20 year climatology, a numerical model simulation, and a sensitivity study which links both of the above. The climatological part of this study extends the previously published Atlantic surface …
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Global omega equation: derivation and application to tropical cyclogenesis in the north Atlantic Ocean
… equation is applied to the problem of tropical cyclogenesis in the Atlantic Ocean. The omega fields are used to compare those disturbances that eventually undergo cyclogenesis with those that dissipate. Composite analysis is employed and, in order to account for the different regional behavior …
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Rapid marine cyclogenesis forecast sensitivity to high resolution sea surface temperatures during ERICA IOP-5
… Grid Model (NGM) predictions of rapid marine cyclogenesis is examined. Satellite data provides a gridded SST analysis with a resolution of 50 km. Forecasts using the operational "blended" SST analysis with a neutral stratification assumed in the calculation of surface exchange coefficient over …
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THE APPLICATION OF THE MARSUPIAL AND ROTATING CONVECTION PARADIGMS TO UNDERSTANDING THE TROPICAL CYCLOGENESIS AND INTENSIFICATION OF HURRICANE MICHAEL (2018)
… the protective “pouch” that supported tropical cyclogenesis and also the principal dynamic elements of the intensification in the Caribbean Sea and Gulf of Mexico before making landfall in Mexico Beach, Florida. Hurricane Michael’s genesis was unique, occurring near land under complex …
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African Easterly Waves: Evolution and Relationship to Atlantic Tropical Cyclones
… to investigate if African waves involved in cyclogenesis possess special characteristics, or if the environment in which they are embedded is the sole factor that determines if cyclogenesis will occur. This study consists of assessment of the special characteristics of African easterly waves …
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Numerical Simulations of the Rapid Cyclogenesis Over Canada and Evolution of a Cold Front Observed on 25-26 April 1979 (sesame-Ave-Iii)
… is to investigate the mechanisms of this rapid cyclogenesis, the other is to discuss the synoptic- and meso-scale environment with the cold front. A regional scale prediction model, which is the quasi-Lagrangian nested model developed by Mathur (1983) and modified in this study, was used to …
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Dynamics of storm tracks
… how the topography could influence the local cyclogenesis. Finally, we investigate how the model storm tracks are organized in a nonlinear model simulation. We focus on the behavior of the synoptic-scale disturbances in the 1982-83 boreal winter, a season with a strong El Nino event and a …
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Moist Baroclinic Instability and Macroturbulence of the Midlatitude Atmosphere
… in extreme and poorly predicted forms of cyclogenesis along the east coast of the US and west coast of Europe and have recently emerged as the dominant mode of instability in an idealized GCM with climate warming. While we have a good theoretical understanding of dry cyclogenesis, our …
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Atlantic tropical cyclone formation: Pre-genesis evolution of tropical easterly waves and impacts of the middle to upper tropospheric dry air
… to determine the role of wave merger in tropical cyclogenesis over the East Atlantic: non-merger developers, merger developers, and merger non-developers. Relative to non-mergers, it is found that merger developers have a weaker circulation near the surface at the early stages but the merger of a …
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Midlevel ventilation's constraint on tropical cyclone intensity
… on the present-day climatology of tropical cyclogenesis and the distribution of TC intensification. Additionally, changes in the ventilation index are also examined in general circulation models (GCMs) between the late 20th century and the late 22nd century. Individual GCMs indicate …
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Horizontal vorticity redistribution and vortex alignment in developing and mature tropical cyclones
… to have relevance to the problem of tropical cyclogenesis. Cyclogenesis initiated through the merger of low-level convectively-generated positive PV within a weak incipient vortex is captured by quasi-Iinear dynamics. A potential dynamical barrier to TC development in which the quasi-mode …
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An analysis of a developing and non-developing disturbance during the predict experiment
… of dry air in moist convection during tropical cyclogenesis. The circulation and vorticity dynamics of Karl are used to describe the system-scale spin-up within the marsupial paradigm frame-work. The circulation tendency shows that Karl underwent periods of spin-up and spin-down until its …
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