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Dissertations / Theses on the topic 'Hurricanes'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 July 2024

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1

Branney, Sean J. "Comparison and development of hurricane electrical power system damage models." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/5657.

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Thesis (M.S.)--University of Missouri-Columbia, 2008.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 25, 2008) Includes bibliographical references.

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2

Speckhart, Benjamin L. "Observational analysis of shallow water response to passing hurricanes in Onslow Bay, NC in 1999 /." Electronic version (PDF), 2004. http://dl.uncw.edu/etd/2004/speckhartb/benjaminspeckhart.pdf.

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3

Chen, Dongsheng. "Vulnerability of tall buildings in hurricanes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0005/MQ42135.pdf.

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4

Miller, Elizabeth Caitlin. "Tracking Atlantic Hurricanes Using Statistical Methods." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4730.

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Creating an accurate hurricane location forecasting model is of the utmost importance because of the safety measures that need to occur in the days and hours leading up to a storm's landfall. Hurricanes can be incredibly deadly and costly, but if people are given adequate warning, many lives can be spared. This thesis seeks to develop an accurate model for predicting storm location based on previous location, previous wind speed, and previous pressure. The models are developed using hurricane data from 1980-2009.

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5

Redwood, Loren Kate. "Immigrant labor exploitation and resistance in the post-Katrina deep south success through legal advocacy /." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Dissertations/Fall2009/L_Redwood_113009.pdf.

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Thesis (Ph. D.)--Washington State University, December 2009.
Title from PDF title page (viewed on Dec. 11, 2009). "Department of American Studies." Includes bibliographical references (p. 142-157).

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6

Lear, Matthew R. "A complex adaptive system approach to forecasting hurricane tracks." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Jun%5FLear%5FCS.pdf.

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Lear, Matthew R. "Forecasting hurricane tracks using a complex adaptive system." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Jun%5FLear%5FMetoc.pdf.

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Barth, Laura J. Stone Sara J. "Two of a kind comparing photographic media coverage for Hurricanes Katrina and Ike /." Waco, Tex. : Baylor University, 2009. http://hdl.handle.net/2104/5360.

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9

Amini, Sina. "Hydrodynamics and Salinity of Pontchartrain Estuary During Hurricanes." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1845.

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A hurricane is a combination of sustained winds, low atmospheric pressures and precipitation. Over the past decades, Louisiana has experienced several devastating hurricanes. The east bank of the City of New Orleans is bounded by Lake Pontchartrain to the North and the Mississippi River to the South. Lake Pontchartrain is a brackish system connected to the Gulf of Mexico through Lake Borgne to the East. As a Hurricane enters the Estuary from the Gulf of Mexico, it imposes a sustained surge of a few meters which may lead to flooding in areas which are not protected by levees. These flood water may be saline. Saltwater flooding is an environmental issue in flooded marshlands since saltwater can be fatal to some plants. The response of salinity and storm surge to hurricane duration which represents the forward speed of the storm is numerically modeled.

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Čížek, Štěpán. "In Hertford, Hereford and Hampshire, hurricanes hardly happen." Master's thesis, Vysoké učení technické v Brně. Fakulta výtvarných umění, 2016. http://www.nusl.cz/ntk/nusl-240611.

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-Ability to articulate the world of his own means, using post-production manipulation and mutual intervention. -Trying to phrase "without an accent," so that the recipient of the message (no longer subjectively) perceived the relationship between objectively defined entities. -all Redefines based on already recognized ... -Need of authorial manipulation and the presence of "alter ego", the second (submissive) I, in the role of uncritical recipient of my suggestions. -Koexistence And multiculturalism. -All Cats have four legs, my dog has four legs - hence my dog is a cat.

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11

Reading, Alison Jane. "Landslides, heavy rainfalls and hurricanes in Dominica, West Indies." Thesis, Swansea University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.290929.

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In 1979, the volcanic island of Dominica was severely affected by Hurricanes David and Frederic. Together they devastated vegetation and buildings and resulted in innumerable landslides on the predominantly very steep slopes of the deeply dissected landscape. This thesis examines the major medium to long term effects of these hurricanes and in particular assesses their role in initiating rapid mass movements. Despite the massive disturbance caused by the 1979 hurricanes, and also by a third, Allen (in 1980), evidence suggests the landscape is rapidly reverting to its pre-hurricane state. Variations in the frequency of tropical cyclones will clearly have great effect on the denudation characteristics of the Dominican (or similar) environments. The thesis, therefore, first examines the changing frequency of West Indian tropical cyclones. Cyclone frequencies were particularly high in the periods 1780-1840, 1880-1910 and 1930-1959. Large troughs in the frequency of cyclones are noted in the mid 17th century and since 1960. Superimposed upon these peaks and troughs have been marked variations in favoured tracks. During the 20th century there has been a definite shift in mean tracks, northwards and eastwards. The unusual physical, geotechnical and hydrological characteristics of the island's residual clay soils are investigated and the considerable problems which arose in the measurement and geomorphological interpretation of soil properties are stressed. A detailed understanding of soil formation and runoff processes, notably depth of soil, zones of percolation impedence, throughflow, and positive pore water pressure development is found to be essential to explanations of slope failure patterns. Although only a small increase in positive pore water pressure would be necessary to initiate failure in the deeper soil horizons, the amount of additional water necessary to achieve this is large. It is suggested that such an increase could only occur in the type of exceptionally prolonged and high intensity rainfalls associated with tropical cyclones.

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12

Kim, Jun-Young. "ANN wave prediction model for winter storms and hurricanes." W&M ScholarWorks, 2003. https://scholarworks.wm.edu/etd/1539616716.

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Currently available wind-wave prediction models require a prohibitive amount of computing time for simulating non-linear wave-wave interactions. Moreover, some parts of wind-wave generation processes are not fully understood yet. For this reason accurate predictions are not always guaranteed. In contrast, Artificial Neural Network (ANN) techniques are designed to recognize the patterns between input and output so that they can save considerable computing time so that real-time wind-wave forecast can be available to the navy and commercial ships. For this reason, this study tries to use ANN techniques to predict waves for winter storms and hurricanes with much less computing time at the five National Oceanic and Atmospheric Administration (NOAA) wave stations along the East Coast of the U.S. from Florida to Maine (station 44007, 44013, 44025, 44009, and 41009). In order to identify prediction error sources of an ANN model, the 100% known wind-wave events simulated from the SMB model were used. The ANN predicted even untrained wind-wave events accurately, and this implied that it could be used for winter-storm and hurricane wave predictions. For the prediction of winter-storm waves, 1999 and 2001 winter-storm events with 403 data points had 1998 winter-storm events with 78 points were prepared for training and validation data sets, respectively. In general, because winter-storms are relatively evenly distributed over a large area and move slowly, wind information (u and v wind components) over a large domain was considered as ANN inputs. When using a 24-hour time-delay to simulate the time required for waves to be fully developed seas, the ANN predicted wave heights (r = 0.88) accurately, but the prediction accuracy of zero-crossing wave periods was much less (r = 0.61). For the prediction of hurricane waves, 15 hurricanes from 1995 to 2001 and Hurricane Bertha in 1998 were prepared for training and validation data sets, respectively. Because hurricanes affect a relatively small domain, move quickly, and change dramatically with time, the location of hurricane centers, the maximum wind speed, central pressure of hurricane centers, longitudinal and latitudinal distance between wave stations and hurricane centers were used as inputs. The ANN predicted wave height accurately when a 24-hour time-delay was used (r = 0.82), but the prediction accuracy of peak-wave periods was much less (r = 0.50). This is because the physical processes of wave periods are more complicated than those of wave heights. This study shows a possibility of an ANN technique as the winter-storm and hurricane-wave prediction model. If more winter-storm and hurricane data can be available, and the prediction of hurricane tracks is possible, we can forecast real-time wind-waves more accurately with less computing time.

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13

McConnell, Thomas Eric. "The effects of hurricane Katrina on the structure, performance, capacity, and future of the lumber industry." Master's thesis, Mississippi State : Mississippi State University, 2007. http://library.msstate.edu/etd/show.asp?etd=etd-02062008-130238.

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Tahchiev, Galin Valentinov. "Numerical prediction of mobile offshore drilling unit drift during hurricanes." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1355.

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Mishra, Vijay Kumar. "Impact of hurricanes on structures--a performance based engineering view." Orlando, Fla. : University of Central Florida, 2010. http://purl.fcla.edu/fcla/etd/CFE0003162.

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Mishra, Vijay. "Impact of Hurricanes on Structures - A Performance Based Engineering View." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3251.

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The magnitude of damage caused to the United States (US) coast due to hurricanes has increased significantly in the last decade. During the period 2004-2005, the US experienced seven of the costliest hurricanes in the country's history (NWS TPC-5, 2007) leading to an estimated loss of ~ $158 billion. The present method for predicting hurricane losses, HAZUS (HAZard US), is solely based on hurricane hazard and damage caused to building envelopes only and not to structural systems (Vickery et al., 2006). This method does not take into account an intermediate step that allows for better damage estimates, which is structural response to the hazards that in turn can be mapped to the damage. The focus of this study was to quantify the uncertainty in response of structures to the hurricane hazards associated with hurricanes from performance based engineering perspective. The study enumerates hazards associated with hurricanes events. The hazards considered can be quantified using a variety of measures, such as wind speed intensities, wave and surge heights. These hazards are quantified in terms of structural loads and are then applied to a structural system. Following that, structural analysis was performed to estimate the response from the structural system for given loads. All the possible responses are measured and they are fitted with suitable probability distribution to estimate the probability of a response. The response measured then can be used to understand the performance of a given structure under the various hurricane loads. Dynamic vs. static analysis was performed and results were compared. This will answer a few questions like, if there is any need to do both static and dynamic analysis and how hurricane loads affect the structural material models. This being an exploratory study, available resources, research, and models were used. For generation of annual or extreme values of hazard, various available wind speed, storm surge, and wave height models were studied and evaluated. The wind field model by Batts et al. (1980) was selected for generation of annual wind speed data. For calculation of maximum storm surge height, the Sea, Lake Overland Surges from Hurricane (SLOSH, Jelesnianski et al., 1992) program was used. Wave data was acquired from a National Oceanic and Atmospheric Administration (NOAA) database. The (extreme or annual) wind speed, surge height, and wave height generated were then fitted by suitable probability distributions to find the realizations of hazards and their probabilities. The distribution properties were calculated, correlations between the data were established, and a joint probability distribution function (PDF) of the parameters (wind speed, wave height, and storm surge) was generated. Once the joint distribution of extreme loads was established, the next step was to measure the dynamic response of the structural system to these hazards. To measure the structural response, a finite element model of three-story concrete frame were constructed. Time histories of wind load were generated from wind net pressure coefficients recorded in a wind tunnel test (Main and Fritz, 2006). Wave load time histories were generated using laboratory basin test (Hawke's et al., 1993) wave height time history data and were converted into wave loads using Bernoulli's equation. Surge height was treated as a hydrostatic load in this analysis. These load time histories were then applied to the finite element model and response was measured. Response of the structural system was measured in terms of the mean and maximum displacements recorded at specific nodes of model. Response was calculated for loads having constant mean wind speed and surge/wave and different time histories. The dominant frequency in the wind load time histories was closer to the natural frequency of the structural model used than the dominant frequency in the wave height time histories. Trends in the response for various combinations of mean wind speed, wave height, and surge heights were analyzed. It was observed that responses are amplified with increase in the mean wind speed. Less response was measured for change in mean surge/wave height as the tributary area for wave forces was less compared to wind force. No increase in dynamic amplification factor was observed for increase in force time histories case.
M.S.
Department of Civil and Environmental Engineering
Engineering and Computer Science
Civil Engineering MS

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17

Tabler, Robert E. "The social construction of a special needs program for hurricanes." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002607.

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18

Rhodes, Gwendolyn Bernitha. "Floods, hurricanes and climate influences on the Potomac River Basin /." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/9192.

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Thesis (Ph.D.) -- University of Maryland, College Park, 2008.
Thesis research directed by: Dept. of Geology. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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19

Karstens, Christopher Daniel. "Improved understanding of near-ground winds in hurricanes and tornadoes." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1473223.

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20

Tabler, Robert E. Jr M. A. C. H. E. S. "The Social Construction of a Special Needs Program for Hurricanes." Scholar Commons, 2008. https://scholarcommons.usf.edu/etd/524.

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The overall purpose of this exploratory study was to comprehend how in the event of a hurricane Hillsborough County, Florida protected its elderly and disabled residents with special medical needs. This study used Social Constructionist Theory as a framework and Grounded Theory methodology in the collection of qualitative data. To understand stakeholder knowledge and how they constructed the SpNP, three focus groups were conducted, with representatives from agencies on the Planning Committee. Through 30 in-depth, semi-structured interviews, clients of the SpNP, provided insight into their knowledge of the program and how society influenced evacuation decisions. Finally, 10 in-depth, semi-structured interviews were conducted with elites or directors of agencies in the SpNP (bosses of stakeholders), who functioned as key informants to verify results. Examination of how SpNP stakeholders, perceived the meaning of community responsibility for people with special medical needs identified three themes: disaster experience, coalition building, and collective moral responsibility. Examination of how SpNP clients, constructed their meaning of the SpNP, identified five themes: registration barriers, SpNP knowledge, support systems, cultural expectations, and the media. Examination of societies influence on the evacuation decision of SpNP clients identified three themes: risk perception, evacuations barriers and the media. The study highlighted the importance of forming community coalitions to address the needs of vulnerable populations. It is also obvious that the state legislation needs to specifically define special needs and standards of care that must be provided at public and special needs shelters. Implications for public health practitioners, suggest the need to be more involvement with the media, in efforts to promote policies and the perception of risks due to hurricanes. Public health nurses need to receive training on caring for chronic illnesses. Mandatory training for social workers, nurses, and physicians who provide health care to the general population should be considered. There is a need for all agencies that provide services and advocate for individuals with special needs to participate in the SpNP, by registering and educating their clients. Many SpNP clients were confused as to the services provided, which could be partially solved by separating the programs transportation and SpNS components.

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Francis, Fredric Marc. "Crisis Preparedness of Leadership Behaviors Among Elected Leaders During Hurricanes." ScholarWorks, 2015. https://scholarworks.waldenu.edu/dissertations/1457.

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Crisis preparedness is the responsibility of every person, business, and leader, and leadership behavioral skills are an essential characteristic of crisis preparedness. The purpose of this case study was to explore the decisions of elected leaders along the Gulf Coast during Hurricanes Katrina and Ike in order to understand their leadership behaviors in crisis preparedness. The conceptual framework was based on the emergency management theory presented by McEntire in 2004, which helped to define the necessary components for leaders' successful crisis preparedness. Data were collected through interviews with 5 members from the National Emergency Management Agency along with a document review of elected leader responses and decisions during both Hurricanes Katrina and Ike from government reports, previous studies, and scholarly articles. Data were interpretively analyzed by listing out several leadership models and the behaviors that identify them and then by reviewing the document study information in 2 matrices for methodological triangulation and data saturation. The findings highlighted 5 emerging themes named as the five Cs of crisis preparedness: compassion, continuity, communication, common sense, and confidence. This study may contribute to social change by identifying key leadership traits that governors and other elected leaders should use in crisis preparedness, which may contribute to the safety, health, and well-being of constituents during a natural disaster.

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Ellinwood, Mark Chad. "Response of barrier island fish assemblages to impacts from multiple hurricanes: assessing resilience of Chandeleur Island fish assemblages to hurricanes Ivan (2004) and Katrina (2005)." ScholarWorks@UNO, 2008. http://scholarworks.uno.edu/td/870.

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Hurricanes can temporarily disrupt seasonal patterns of fish assemblage change or result in permanent changes in fish assemblages. I studied the effects of two hurricanes on fish assemblages at the Chandeleur Islands and the possible influence that storm-generated tidal channels may have on the composition of local fish assemblages. I also compared recently collected data to historic ichthyofaunal survey data collected over thirty years ago at the Chandeleur Islands. Near shore fish assemblages changed the most after hurricanes but changes in species composition were primarily due to increases in abundance and diversity. During July 2007 there was no significant difference between fish assemblages in channel and seagrass habitats, although significant differences among wash-over channels existed. Loss of habitat and the increased intensity and frequency of recent storms may explain why current fish assemblages at the Chandeleur Islands are less diverse (as measured by taxonomic distinctness) than assemblages collected during 1969-1971.

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23

Murray, Matthew C. "Examining post-evacuation plans for hurricane evacuees using Westerly, Rhode Island as a test case." Muncie, Ind. : Ball State University, 2009. http://cardinalscholar.bsu.edu/665.

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24

Lone, Lars O. "Airborne hyperspectral and satellite multispectral imagery of the Mississippi Gulf Coast region." Thesis, Monterey, Calif. : Naval Postgraduate School, 2006. http://bosun.nps.edu/uhtbin/hyperion.exe/06Dec%5FLone.pdf.

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Thesis (M.S. in Physical Oceanography)--Naval Postgraduate School, December 2006.
Thesis Advisor(s): Robin Tokmakian. "December 2006." Includes bibliographical references (p. 73-75). Also available in print.

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25

Belasen, Ariel R. "The impact of exogenous shocks on local labor markets." Diss., Online access via UMI:, 2007.

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Sharma, Siddharth. "Development of a large-scale traffic simulation model for hurricane evacuation a case study of Virginia's Hampton Roads region /." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/6735.

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Thesis (M.S.)--University of Missouri-Columbia, 2008.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on September 22, 2008) Includes bibliographical references.

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Fernandes, Carlos Alberto dos Santos. "Extreme hurricane-generated waves in Gulf of Mexico." Thesis, Monterey, California. Naval Postgraduate School, 2005. http://hdl.handle.net/10945/1787.

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Accurate predictions and understanding of littoral and coastal wave conditions are of major importance to military operations and civilian coastal zone management. Although WaveWatchIII (WW3) is used by many operational forecasting centers around the world, there is a lack of field studies to evaluate its accuracy in regional applications and under extreme conditions, such as Hurricanes. Data from seven National Data Buoy Center (NDBC) buoys in the Gulf of Mexico, together with an array of pressure and pressure-velocity sensors deployed on the Florida Panhandle shelf during the Office of Naval Research (ONR) SAX04 experiment, were used to test WW3 predictions of extreme waves generated by Hurricane Ivan. The model predicts large differences between wave conditions on the left and right sides of the hurricane track owing to the difference in "dwell time" between wave propagating against and with the storm. Analysis reveals a tendency to predict smaller wave heights and later arrival of hurricane swell than is observed. Additionally, the default operational setting for dissipation by bottom friction yields too much dissipation on the continental shelf. Overall, the agreement between observations and model predictions is reasonable.

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28

Ford, Debra M. "Forecasting tropical cyclone recurvature using an empirical othogonal [sic] function representation of vorticity fields." Thesis, Monterey, California : Naval Postgraduate School, 1990. http://handle.dtic.mil/100.2/ADA238489.

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Thesis (M.S. in Meteorology and Oceanography)--Naval Postgraduate School, September 1990.
Thesis Advisor(s): Elsberry, Russell L. ; Harr, Patrick A. "September 1990." Description based on title screen as viewed on December 16, 2009. DTIC Identifier(s): EOF (empirical orthogonal functions). Author(s) subject terms: Tropical cyclones, recurvature, empirical orthogonal functions. Includes bibliographical references (p. 73-74). Also available in print.

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Wooten, Rebecca Dyanne. "Statistical environmental models : hurricanes, lightning, rainfall, floods, red tide and volcanoes." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001824.

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Le, Fevre Julie. "Analysis of boundary layer wind structures associated with land-falling hurricanes." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=97234.

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Hurricanes are the most intense form of tropical cyclones and are a major natural hazard affecting millions of people every year. Their intensity, measured in maximum wind speed, is not well forecasted which can lead to an underestimation in the severity of the tropical cyclones and the consequent damage to civil infrastructure, injuries and loss of human life.Part of the problem, as been highlighted by several scientists, is the lack of observations in the boundary layer of hurricanes, particularly over land. This study explores the Velocity Azimuth Display technique with NEXRAD WSR-88D data, adapts it to hurricane boundary layer to retrieve wind profiles and tests its accuracy through comparisons with other observations. This method is applied to two hurricanes and one strong tropical storm that hit the southeast coasts of the United States. The utility of this work is determined through comparisons to model outputs and reanalysis.
Les ouragans constituent un risque naturel majeur qui touche des millions de personnes chaque année. La prévision de leur intensité, la vitesse maximale du vent, n'est pas optimale, pouvant conduire à une sous-estimation de la gravité des cyclones tropicaux, des dégâts, des blessés et des décès.Une partie du problème, soulignée par plusieurs scientifiques, est le manque d'observations dans la couche limite des ouragans, en particulier sur les terres. Cette étude explore la technique de représentation de la vitesse Doppler par rapport à l'azimut avec des données WSR-88D, l'adapte à la couche limite des ouragans pour créer des profils de vent et teste son exactitude grâce à d'autres observations. Cette méthode est appliquée à deux ouragans et une forte tempête tropicale qui ont frappé les côtes sud-est des États-Unis. L'utilité de ce travail est déterminée par comparaison avec des résultats de modèle et des réanalyses.

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Alymov, Vadim Vladimirovich. "Integrated modeling of storm surges during Hurricanes Isabel, Charley, and Frances." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0012989.

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Fritz, Angela Marcelun. "North Atlantic tropical cyclones a kinetic energy perspective /." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29781.

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Thesis (M. S.)--Earth and Atmospheric Sciences, Georgia Institute of Technology, 2010.
Committee Chair: Curry, Judith A.; Committee Member: Black, Robert X.; Committee Member: Deng, Yi. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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Wishart, Hannah. "The Economic Impact of Natural Disasters on Food Security and SNAP Benefits." Ohio University Honors Tutorial College / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1492706056382996.

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Ravia, Roni. "Excitation and dispersion of a Rossby wave train on the polar jet by an extra-tropical transition of a hurricane." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101167.

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The enhanced potential vorticity gradients along the polar jet serve as a wave guide for trapped Rossby waves. These tropopause level, synoptic scale Rossby waves are of primary importance for weather development at the surface. In particular, extreme weather events have been linked to the existence of overlying upper level meridionally elongated filaments of stratospheric (high potential vorticity) air which form during the breaking of these waves. Motivated by the desire to understand the conditions under which these waves are formed and to improve their predictability, the current thesis discusses one excitation mechanism---the potential vorticity anomaly associated with a hurricane approaching the extra-tropics.
Attention is directed toward the adiabatic interaction of the cyclone with the polar jet before the two features meet. The hurricane's ability to excite Rossby waves is verified from observations of past interactions and theoretical study using a mechanistic model with idealized settings. The nature of the interaction between the cyclone and the polar jet is found to be sensitive to parameters such as the cyclone's radius and PV anomaly. Three different regimes have been identified. It is also concluded that the same parameters have influence on the skill of the Rossby wave prediction. The more intense the cyclone is, the harder it is to accurately predict the response of the polar jet.

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Short, Jesseca Elizabeth. "An Analysis of the Economic and Institutional Factors Affecting Recovery by Local Governments from Huricanes." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc862865/.

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This dissertation examines the impact of major hurricanes on changes in GDP for counties in four states – Alabama, Florida, Louisiana, and Texas. The analysis examines the effectiveness of intergovernmental financing for major hurricanes between 2000 and 2014. It also examines whether institutional proximity of the disaster management function to the Governor's Office and the career status of the director affect the speed of recovery from the disaster. The analysis also assesses the impact that a counties's prior experience at dealing with disasters has on the speed of recovery.

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Sheer, Emily B. "The Joint Influence of ENSO and NAO on US Landfalling Hurricanes and their Origination Points." Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1357322921.

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37

Laupattarakasem, Peth. "An improved hurricane wind vector retrieval algorithm using SeaWinds scatterometer." Orlando, Fla. : University of Central Florida, 2009. http://purl.fcla.edu/fcla/etd/CFE0002654.

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38

Judt, Falko. "Convectively-Generated Potential Vorticity in Rainbands and Secondary Eyewall Formation in Hurricanes." Scholarly Repository, 2009. http://scholarlyrepository.miami.edu/oa_theses/214.

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Concentric eyewall formation and eyewall replacement cycles are intrinsic processes that determine the intensity of a tropical cyclone, as opposed to purely environmental factors such as wind shear or the ocean heat content. Although extensive research has been done in this area, there is not a single widely accepted theory on the formation of secondary eyewall structures. Many previous studies focused on dynamic processes in the inner core of a tropical cyclone that would precede and ultimately lead to the formation of a secondary eyewall. Hurricanes Katrina and Rita in 2005 were frequently sampled by research aircraft which gathered a copious amount of data. During this time, Rita developed a secondary eyewall which eventually replaced the original eyewall. This thesis will investigate the formation of a secondary eyewall with particular emphasis on the rainband region, as observations show that an outer principal rainband transformed into the secondary ring. A high resolution, full physics model (MM5) initialized with global model forecast fields correctly predicted the secondary eyewall formation in Rita. The model output will be used to investigate both Katrina and Rita in terms of their PV generation characteristics since PV and vorticity maxima correlate well with wind maxima that accompany the eyewall and rainbands. Furthermore, dynamical processes such as vortex Rossby wave (VRW) activity in the inner core region will be analyzed. Comparison of the differences in the two storms might shed some light on dynamics that can lead to structure changes. Comparison of the model data with aircraft observation is used to validate the results. Doppler radar derived wind fields will be used to calculate the vertical vorticity. The vorticity field is closely related to PV and thus a manifestation of the PV generation process in the rainband. The investigation has shown that Rita?s principal rainband features higher PV generation rates at radii beyond 80 km. Both the azimuthal component and the projection of asymmetric PV generated by convection onto the azimuthal mean connected with the principal band are hypothesized to be of importance for the formation of the secondary eyewall. VRW were found not to be important for the initial formation of the ring but might enhance convective activity once the outer eyewall contracts.

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39

Nong, Shangyao 1968. "A numerical and observational study of the genesis of concentric eyewall hurricanes." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/59089.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1999.
Includes bibliographical references (p. 195-202).
This work attempts to understand the dynamics of the genesis of concentric eyewall hurricanes. More specifically, we focus on the effects of external eddy forcing associated with upper-level wave asymmetries in the environment of tropical cyclones, and through what processes these effects can be achieved. Our approach is a combination of numerical modeling and observational case studies. We have made use of two numerical models, namely a simple two-layer model and a two-dimensional cloud resolving non-hydrostatic model. The latter is called the full physics model for short. Owing to the lack of direct measurements of upper-level atmospheric conditions, we choose to use reanalysis data from National Centers for Environmental Prediction (NCEP) and National Center for Atmospheric Research (NCAR) and European Center for Medium-Range Weather Forecasts (ECMWF). A somewhat lengthy evaluation suggests that both datasets are marginally suitable for case studies of tropical cyclones. Our major conclusions are as follows: ** Numerical simulations from the simple and full physics models suggest that the genesis of concentric eyewall hurricane results from finite-amplitude wind induced surface heat exchange (WISHE) instability of the tropical atmosphere. ** The results from the full physics model suggest that the role of the eddy forcing is like the catalyst in a chemical reaction. The forcing helps manifest internal finite-amplitude instabilities which themselves are driven by surface enthalpy fluxes. ** The results from our extensive case studies suggest that a causal relationship does not always exist between environmental forcing and genesis of a secondary eyewall. Some cases, for example, Hurricane Allen of 1980, Hurricane Elena of 1985 and Hurricane Opal of 1995, show a good and clear relationship between their eyewall replacement cycles and their external forcings. Some cases, for example, Hurricane Gilbert of 1998 and Hurricane Andrew of 1992, show some degree of causal relationship. Some cases, for example, Hurricane Emily of 1993 and Hurricane Gabrielle of 1989, show a weak or close to no causal relationship. ** With the results of Hurricane Frederic of 1979 and results from concentric eyewall hurricanes, we can conclude that the interaction between a tropical cyclone and its upper-level synoptic environment is neither sufficient nor necessary for the genesis and development of concentric eyewall cycles in reality. ** The maps of isentropic potential vorticity (PV) only provide qualitative information on the occurrence of the interaction. The strength of the interaction should be determined quantitatively by the eddy PV fluxes which should be calculated in a storm-moving coordinate system. The discrepancy between the numerical results and the case studies' results leads us to hypothesis two mechanisms of the genesis. One is the interaction between a hurricane and the ocean underneath. The other is the tilting of high PV inner core with the storm and followed up projection of cyclonic vorticity down to the ocean surface.
by Shangyao Nong.
Ph.D.

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40

Handel, Mark David. "Tropical cyclone intensification from finite amplitude disturbances, or, How hurricanes hardly happen." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/54345.

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41

Wehde, Wesley, Alisa Fryar, Brenda Nichols, and Shannon Tanner. "Hurricanes in Higher Education: The Effects of Natural Disasters on Student Success." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/etsu-works/7860.

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42

Beckley, Amber L. "The effect of hurricanes on burglary in North Carolina counties, 1999-2003." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8537.

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Thesis (M.A.) -- University of Maryland, College Park, 2008.
Thesis research directed by: Dept. of Criminology and Criminal Justice. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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43

Boudreaux, Brian Joel. "Exploring a multi-stage model of crisis management utilities, hurricanes, and contingency /." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0010486.

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44

Wang, Wanting. "Satellite remote sensing of forest disturbances caused by hurricanes and wildland fires." Fairfax, VA : George Mason University, 2009. http://hdl.handle.net/1920/4579.

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Thesis (Ph.D.)--George Mason University, 2009.
Vita: p. 151. Thesis director: John J. Qu. Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Earth Systems and Geoinformation Sciences. Title from PDF t.p. (viewed Oct. 11, 2009). Includes bibliographical references (p. 136-150). Also issued in print.

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Anderson, Jeremy. "Colonialism and Catastrophe: Hurricanes, Empire, and Society in Puerto Rico and Cuba." Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/cmc_theses/2144.

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This thesis explores the relationship between colonialism and the environment through a study of hurricanes in Cuba and Puerto Rico. Because hurricanes do not discriminate between international borders, they reveal much about the influences of political, economic, and social structures on vulnerability to hurricanes, hurricane preparation, and hurricane relief efforts. The Caribbean is a region that has been disproportionately impacted by hurricanes. It is also a region that has been wholly shaped by colonization. Prior to Christopher Columbus’ arrival in the Caribbean, natives on islands like Puerto Rico and Cuba built and structured their societies around hurricanes and other catastrophes. Different aspects of colonialism altered the relationship between Puerto Ricans and Cubans and their respective environments. Though Puerto Rico and Cuba share incredibly similar histories, competing trajectories have emerged on both islands as they have undergone processes of decolonization and independence. An examination of Cuban and Puerto Rican history prior to Hurricane Irma and Hurricane María in 2017 provides a deeper understanding of the divergent histories of both islands. Ultimately, this study demonstrates that the legacy of colonialism continues to impact the identities and security of Cuba and Puerto Rico today.

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46

D'andrea, Joy Marie. "A Statistical Analysis of Hurricanes in the Atlantic Basin and Sinkholes in Florida." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6077.

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Beaches can provide a natural barrier between the ocean and inland communities, ecosystems, and resources. These environments can move and change in response to winds, waves, and currents. When a hurricane occurs, these changes can be rather large and possibly catastrophic. The high waves and storm surge act together to erode beaches and inundate low-lying lands, putting inland communities at risk. There are thousands of buoys in the Atlantic Basin that record and update data to help predict climate conditions in the state of Florida. The data that was compiled and used into a larger data set came from two different sources. First, the hurricane data for the years 1992 – 2014 came from Unisys Weather site (Atlantic Basin Hurricanes data, last 40 years) and the buoy data has been available from the national buoy center. Using various statistical methods, we will analyze the probability of a storm being present, given conditions at the buoy; determine the probability of a storm being present categorically. There are four different types of sinkholes that exist in Florida and they are: Collapse Sinkholes, Solution Sinkholes, Alluvial Sinkholes, and Raveling Sinkholes. In Florida there are sinkholes that occur, because of the different soil types that are prevalent in certain areas. The data that was used in this study came from the Florida Department of Environmental Protection, Subsidence Incident Reports. The size of the data was 926 with 15 variables. We will present a statistical analysis of a sinkholes length and width relationship, determine the average size of the diameter of a sinkhole, discuss the relationship of sinkhole size depending upon their soil types, and acknowledge the best probable occurrence of when a sinkhole occurs. There will be five research chapters in this dissertation. In Chapter 2, the concept of Exploratory Factor Analysis and Non-Response Analysis will be introduced, in accordance of analyzing hurricanes. Chapter 3 will also address the topic of hurricanes that have formed from the Atlantic Basin from 1992 – 2014. The discussion of the probability of a storm being present (also categorically) will be addressed. In Chapter 4 a study of sinkholes in Florida will be addressed. In Chapter 5 we will continue our discussion on sinkholes in Florida, but focus on the time to event between the occurrences of the sinkholes. In the last chapter, Chapter 6, we will conclude with a future works and projects that can be created from the foundations of this dissertation.

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47

Robertson, William. "Airborne Laser Quantification of Florida Shoreline and Beach Volume Change Caused by Hurricanes." FIU Digital Commons, 2007. http://digitalcommons.fiu.edu/etd/35.

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This dissertation combines three separate studies that measure coastal change using airborne laser data. The initial study develops a method for measuring subaerial and subaqueous volume change incrementally alongshore, and compares those measurements to shoreline change in order to quantify their relationship in Palm Beach County, Florida. A poor correlation (R2 = 0.39) was found between shoreline and volume change before the hurricane season in the northern section of Palm Beach County because of beach nourishment and inlet dynamics. However, a relatively high R2 value of 0.78 in the southern section of Palm Beach County was found due to little disturbance from tidal inlets and coastal engineering projects. The shoreline and volume change caused by the 2004 hurricane season was poorly correlated with R2 values of 0.02 and 0.42 for the north and south sections, respectively. The second study uses airborne laser data to investigate if there is a significant relationship between shoreline migration before and after Hurricane Ivan near Panama City, Florida. In addition, the relationship between shoreline change and subaerial volume was quantified and a new method for quantifying subaqueous sediment change was developed. No significant spatial relationship was found between shoreline migration before and after the hurricane. Utilization of a single coefficient to represent all relationships between shoreline and subaerial volume change was found to be problematic due to the spatial variability in the linear relationship. Differences in bathymetric data show only a small portion of sediment was transported beyond the active zone and most sediment remained within the active zone despite the occurrence of a hurricane. The third study uses airborne laser bathymetry to measure the offshore limit of change, and compares that location with calculated depth of closures and subaqueous geomorphology. There appears to be strong geologic control of the depth of closure in Broward and Miami-Dade Counties. North of Hillsboro Inlet, hydrodynamics control the geomorphology which in turn indicates the location of the depth of closure.

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48

Edwards, Jennifer L. "Post-disaster climatology for hurricanes and tornadoes in the United States| 2000-2009." Thesis, Kent State University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1555294.

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Natural disasters can be very devastating to the public during their impact phase. After a natural disaster impacts a region, the response and recovery phases begin immediately. Weather conditions may interrupt emergency response and recovery in the days following the disaster. This study analyzes the climatology of weather conditions during the response and recovery phases of hurricanes and tornadoes to understand how weather may impact both environment and societal needs. Using specific criteria, 66 tornadoes and 16 hurricane cases were defined. National Weather Service (NWS) recognized weather stations were used to provide temperature, precipitation, snowfall, relative humidity, wind speed, and wind direction data. Regional and temporal groups were defined for tornado cases, but only one group was defined for hurricanes. By applying statistical analysis to weather observations taken in the week following the disasters, a climatology was developed for the response and recovery phase. Tornado and hurricane post-disaster climate closely mimicked their synoptic climatology with cooler and drier weather prevailing in days 2-4 after a disaster until the next weather system arrived about 5 days later. Winter tornadoes trended to occur in the Southeast and were associated with more extreme temperature differences than in other regions and season. The results of this study may help governmental and non-governmental organizations prepare for weather conditions during the post-disaster phase.

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49

D'Andrea, Joy. "A Statistical Analysis of Hurricanes in the Atlantic Basin & Sinkholes in Florida." Thesis, University of South Florida, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10103862.

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Abstract:

Beaches can provide a natural barrier between the ocean and inland communities, ecosystems, and resources. These environments can move and change in response to winds, waves, and currents. When a hurricane occurs, these changes can be rather large and possibly catastrophic. The high waves and storm surge act together to erode beaches and inundate low-lying lands, putting inland communities at risk. There are thousands of buoys in the Atlantic Basin that record and update data to help predict climate conditions in the state of Florida. The data that was compiled and used into a larger data set came from two different sources. First, the hurricane data for the years 1992–2014 came from Unisys Weather site (Atlantic Basin Hurricanes data, last 40 years) and the buoy data has been available from the national buoy center. Using various statistical methods, we will analyze the probability of a storm being present, given conditions at the buoy; determine the probability of a storm being present categorically. There are four different types of sinkholes that exist in Florida and they are: Collapse Sinkholes, Solution Sinkholes, Alluvial Sinkholes, and Raveling Sinkholes. In Florida there are sinkholes that occur, because of the different soil types that are prevalent in certain areas. The data that was used in this study came from the Florida Department of Environmental Protection, Subsidence Incident Reports. The size of the data was 926 with 15 variables. We will present a statistical analysis of a sinkholes length and width relationship, determine the average size of the diameter of a sinkhole, discuss the relationship of sinkhole size depending upon their soil types, and acknowledge the best probable occurrence of when a sinkhole occurs. There will be five research chapters in this dissertation. In Chapter 2, the concept of Exploratory Factor Analysis and Non-Response Analysis will be introduced, in accordance of analyzing hurricanes. Chapter 3 will also address the topic of hurricanes that have formed from the Atlantic Basin from 1992–2014. The discussion of the probability of a storm being present (also categorically) will be addressed. In Chapter 4 a study of sinkholes in Florida will be addressed. In Chapter 5 we will continue our discussion on sinkholes in Florida, but focus on the time to event between the occurrences of the sinkholes. In the last chapter, Chapter 6, we will conclude with a future works and projects that can be created from the foundations of this dissertation.

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50

Edwards, Jennifer L. "Post-Disaster Climatology for Hurricanes and Tornadoes in the United States: 2000-2009." Kent State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=kent1366415657.

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