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 241 for “"Cyclones"”.
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The dynamics of extratropical oceanic cyclones.
Thesis. 1977. M.S.--Massachusetts Institute of Technology. Dept. of Meteorology.
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Mesoscale Ensemble Prediction of Mid-Latitude Cyclones
A unique aspect of this work was the assessment of these multiple, distinct mesoscale ensemble subsets, incorporating initial condition, model physics and lateral boundary uncertainties present in mid-latitude cyclone prediction. The use of separate ensemble subsets permitted direct comparison of …
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The effects of ocean eddies on tropical cyclones
… is to understand the interactions of tropical cyclones with ocean eddies. In particular we examine the influence of a cold-core eddy on the cold wake formed during the passage of Typhoon Fanapi (2010). The three-dimensional version of the numerical Price–Weller–Pinkel (PWP) vertical mixing …
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The path prediction of cyclones with Kalman filters
The Kalman filter is used to provide estimates of the position and velocity of a storm based upon observation of the storm's longitude and latitude. Nonstationary noise is shown to degrade the performance of the filter and cause tracking divergence. Time varying values for the noise covariance …
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Development of tropical cyclones from mesoscale convective systems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1996.
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The effects of ocean eddies on tropical cyclones
… is to understand the interactions of tropical cyclones with ocean eddies. In particular we examine the influence of a cold-core eddy on the cold wake formed during the passage of Typhoon Fanapi (2010). The three-dimensional version of the numerical Price-Weller-Pinkel (PWP) vertical mixing …
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The tropopause region thermal structure and tropical cyclones
… this result is relevant for real-world tropical cyclones: the tropopause region thermal structure permits intense Western Pacific tropical cyclones in every month of the year, which may have critical consequences for coastal societies.
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A theory for polar cyclones on giant planets
… ranging from weak wave-dominated flows to strong cyclones that experience instabilities. We find that a range of behavior, including what is observed on all four giant planets as well as previous simulation studies, can be expressed by varying only 2 nondimensional control parameters: a second …
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Recovery from Minor Tropical Cyclones: the Response of Faith-based Organizations and Government Agencies to Minor Tropical Cyclones in Biloxi, Mississippi
… in contrast, the aftermath of minor tropical cyclones is understudied. Along the Gulf Coast in 2020 and 2021, more minor tropical cyclones made landfall then major hurricanes (NOAA, 2021). Despite the frequency of minor tropical cyclones, few studies have considered the resources and actors …
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Teleconnective Influences on the Strength of Post-tropical Cyclones
<p>Over the 1951-2009 time period, 47% of all tropical systems in the Atlantic Basin transitioned to post-tropical storms. These storms are capable of producing hurricaneforce winds, torrential, flooding rains and storm surge that floods coastal areas. This study adds to previous climatological …
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Dynamics of cloud-top generating cells in winter cyclones
… and comma-head regions of midlatitude winter cyclones. The presence of fall streaks emanating from the GCs, and their persistence either to the surface or until merging into precipitation bands suggests that GCs are a critical component of the precipitation process in these cyclones. This …
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Synoptic and Mesoscale Dynamics of Snowbands in Winter Cyclones
The key findings related to the narrow bands are: (1) The simulated embedded narrow bands were oriented vertically upright, their widths and evolution characteristics similar to radar observations; (2) Conditional symmetric instability did not contribute to the formation of the narrow bands, …
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Seasonality, latitudinal dependence and structural evolution of arctic cyclones
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms
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Diurnal analysis of intensity trends in Atlantic tropical cyclones
I postulate that a diurnal cycle may exist in observational variables related to tropical cyclone (TC) intensity. Prior studies document a significant diurnal signal in moist convection across tropical regions. Since convection becomes more pronounced in intense TCs, daily solar insolation possibly …
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Fluid flow induced by oscillating bodies and flows in cyclones
… cascade, and (ii) the fluid flows in industrial cyclones and their separation efficiencies. In the first part of the thesis we deal with fluid flows induced by harmonically oscillating cascades of cylinders with different cross sectional shapes. Numerical solutions for large amplitude …
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Observation and Tracking of Tropical Cyclones Using Resolution Enhanced Scatterometry
… product winds, to observe and track tropical cyclones. Resolution enhanced winds are found to provide additional storm structure such as inner core size and structure and the presence of multiple eyewalls compared with standard resolution winds. The 2.5~km winds are also able to observe storms …
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African Easterly Waves: Evolution and Relationship to Atlantic Tropical Cyclones
… than 20% of all African waves originate tropical cyclones (including hurricanes). It is of interest 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 …
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Manifestation of elevated convection within wintertime extratropical cyclones during impacts
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Composite structure of tropical cyclones in the SW Indian Ocean
This work examines SW Indian Ocean tropical cyclone (TC) structure as a function of movement using ECMWF gridded data. Analyses of the mean summer climate for the period 1987 1992 shown that conditions conducive to the development ofTCs are present between the latitudes 5° and 15°S. Six westward …
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