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 25 for “"severe storms"”.
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The numerical simulation of non-supercell tornadogenesis
… mid-level rotation found in supercell thunderstorms. In recent years the severe storms community has acknowledged that a significant portion of the small tornadoes occurring across North America every year are associated with storms not displaying strong mid-level rotation before tornado …
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Spatial scale data requirements using NEXRAD (WSR-88D) for accurate hydrologic prediction in urban watersheds
… at two urban watersheds during two recent severe storms and compared the results the hydrologic prediction using rain gages and to the observed hydrograph. Small deviations were observed with the different grid scales, but these differences were considered minor compared to other unknowns …
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The influence of the Agulhas Current on two South African extreme weather events
… data are used to examine the evolution of two severe storms that occurred over the eastern coastal regions during South Africa's summer season 1998/99. The storms in November and December were both accompanied by heavy rainfall in two widely separated locations. The storm in December proved to …
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SENSITIVITY ANALYSIS OF WATER LEVELS AND WAVES IN THE CARMEL RIVER STATE BEACH TO CHANGING BOUNDARY AND MORPHOLOGICAL CONDITIONS IN DELFT3D: CARMEL RIVER LAGOON
… change, major precipitation events such as severe storms and cyclones, La Nina, and human interactions can impact these bar-built estuaries and change the operating environment, both on seasonal and yearly timescales. This study uses the numerical model Delft3D to assess sensitivities of the …
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Collaborative development of a small business emergency planning model
… such as financial events, legal situations, or severe storms exemplified by Hurricane Sandy. Proper preparations can help lessen the length of the interruption and put employees and owners back to work. Large corporations generally have large budgets available for planning, business continuity, …
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Sedimentology of Marine Vertebrate Burial in the Miocene Pisco Fm., Peru
… cross-stratification, which forms during waning storms and implies substantial sediment accumulation during the event, whether by sediment input from the coast or other source, or by resuspension and redeposition of sediment (Dumas and Arnott 2006). The whales are encased in siltstone, made up …
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Assessing the indigenous Arbuscular mycorrhizal fungi (AMF) community associated with sea oats along the Georgia coast at Jekyll and Tybee Islands
… by absorbing the impacts and energy from severe storms. Different efforts have been taken to restore coastal sand dunes, focusing on foredunes. However, there are many strategies involved with coastal restoration and one superior technique has not been found to be the best. Arbuscular …
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Hailfall in a future climate using a pseudo-global warming approach
Severe convective storms (SCS) and their associated hazards present significant societal risk however it is currently unclear how these storms may change in the future under anthropogenic climate change (ACC). Previous methods used to understand changes in SCS are limited by their coarse …
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Paleoclimate reconstructions over the last century from a tropical speleothem on Niue Island, South Pacific
… the interdecadal hydroclimate variability. Severe cyclones that directly impacted Niue Island over the last century are recorded by abrupt, large increases in trace element concentration values of Mg, and S accompanied by stable isotope positive excursions bearing seawater-derived …
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Climate change and hazardous convective weather in the United States: Insights from high-resolution dynamical downscaling
… to adequately represent the scales at which severe convective storms occur, including processes that may lead to storm initiation. With the advancement of computing resources, however, it has now become feasible to explicitly represent deep convective storms within a high-resolution regional …
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Electric utility storm restoration : crew work allocation optimization
Storms damage Atlantic Electric's electric distribution network, resulting in power outages and expensive repairs. After severe storms Atlantic Electric hires external contractor crews to perform the majority of the restoration work. This project focuses on increasing the effectiveness of …
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Wind-Borne Debris Resistance of Façades: Identification of Alternative Impact Test Requirements
… losses and in fatality occurrence due to severe storms. The frequency and intensity of disaster events are increasing worldwide and areas that were excluded from these extreme weather scenarios in the past, are now looking for solutions to increase the urban resilience. Among others, …
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Dependence of continental severe convective instability on climatological environmental conditions
… profiles, only to be released rapidly by severe storms. In contrast to equilibrium-state convection in tropical ocean regions, there is a relative paucity of research exploring the climate dynamics of continental deep convection. This work makes a contribution to rectifying that deficiency …
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Controls on the distribution of landslides triggered by the 2008 Wenchuan earthquake, Sichuan Province, China
… of landslides are induced by earthquakes, rainstorms or a combination of these two. Landslides are also one of the most destructive geological processes, being the primary cause of damage and fatalities associated with severe storms and earthquakes in mountainous regions. On 12th May 2008 the …
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Comparing Dual Drainage Model (DDM) with SWMM: a case study in John Street watershed, Champaign IL
… watershed, Champaign IL under major and minor storms, by comparing the model performance of DDM to Storm Water Management Model (SWMM) and by examining the sensitivity of Green Infrastructure (GI) application in DDM. Considering storm water dual drainage during severe storms could reduce …
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Tornado Scars: The Long-term Imprints of Disaster on the Texas Urban Landscape
… for determining paths of poorly documented storms and the development of street-level maps of early tornadoes. Tornado scars provide an opportunity to educate and communicate to residents of tornado-prone areas the significant impact of severe storms. Future studies that include thematic …
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Effects of Microphysical Parameterizations and Drop Breakup on Supercells and Supercell Cold Pools.
Ensemble Kalman filter data assimilation experiments are conducted using velocity data from the National Weather Service Radar 88-D and a Shared Mobile Atmospheric Research and Teaching Radar to determine how two different two-moment (Morrison and Milbrandt-Yau) microphysical parameterizations …
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Detection of Mortality in Tropical Forests Using Remote Sensing: From Treefall Gaps to Large Disturbances
… analysis of blow-downs apparently caused by severe storms was discovered using 27 Landsat images and daily precipitation from NOAA satellite data. In this image mosaic from 1999 to 2000, there are 279 patches (from 5 ha to 2,223 ha) characteristic of blow-downs. A total of 21,931 ha of forest …
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Understanding Climate Change Adaptation and Gentrification through the Framework of Uneven Coastal Development in Keansburg, New Jersey
… now face the prospect of more frequent and severe storms, as well as land loss and inundation, due to climate change. This dilemma has sparked debates around coastal resilience, adaptation, retreat, and climate gentrification.</p> <p>While many studies seek to measure perceptions of climate …
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Relationship between coastal vegetation biomass with elevation and salinity gradients
… and waves generated by hurricanes and other severe storms can cause devastating damage to property and loss of life in coastal areas. Vegetation in wetlands and coastal fringes can reduce storm surges and waves while complementing traditional coastal defense approaches such as permanent …
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