dc.contributor.advisor Rappenglueck, Bernhard dc.creator Davidson, Jarrett 1989- dc.date.accessioned 2018-11-30T16:12:32Z dc.date.available 2018-11-30T16:12:32Z dc.date.created 2018-05 dc.date.issued May 2018 dc.date.submitted May 2018 dc.identifier.uri http://hdl.handle.net/10657/3450 dc.description.abstract On June 5th, 2001, Tropical Storm Allison made landfall west of Galveston, Texas with maximum sustained wind speeds of 22 m/s. This storm produced over 940 mm of rain, caused 22 fatalities, and cost upwards of $5 billion dollars. On August 25th, 2017, Hurricane Harvey made landfall near Corpus Christi, Texas as a Category Four hurricane with maximum sustained wind speeds of 58 m/s. Hurricane Harvey produced highest rainfall totals of 1270 mm in some areas of Houston, Texas, caused 77 deaths, and estimated damages are still being calculated but have reached over$180 billion dollars. Meteorological data from genesis to landfall of Hurricane Harvey and Tropical Storm Allison were used to compare the two storms with a focus on the diurnal impacts the storm had on rainfall intensity. The purpose of this study was to identify which of the favorable characteristics for tropical cyclone intensification allowed these two storms to strengthen and produce the significant amount of rain during their lifespans in the Houston, Texas area. The favorable conditions that influenced the genesis and the intensification of these storms were sea surface temperature, low-level wind shear, convection, and general atmospheric circulation along their trajectories. Special attention was given to the spatial and temporal development of precipitation and wind speeds, as well as travel time and path of these tropical systems after landfall since these conditions caused most of the damage. This work investigated the diurnal impact of the stable nocturnal boundary layer and the increased inflow that caused deep moist convection, which resulted in both storms producing most of their rainfall at night. The methods used to study these storms were based on analysis of pertinent data (e.g., distribution of temperature, humidity and convective available potential energy [CAPE] at different atmospheric levels) provided from the National Weather Service/National Oceanic and Atmospheric Administration (NWS/NOAA). dc.format.mimetype application/pdf dc.language.iso en dc.rights The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s). dc.subject Tropical Cyclone dc.subject Hurricanes dc.subject Tropical Storm dc.subject Rainfall dc.title Analysis of the Extreme Rainfall Events during Hurricane Harvey and Tropical Storm Allison dc.date.updated 2018-11-30T16:12:32Z dc.type.genre Thesis thesis.degree.name Master of Science thesis.degree.level Masters thesis.degree.discipline Atmospheric Sciences thesis.degree.grantor University of Houston thesis.degree.department Earth and Atmospheric Sciences, Department of dc.contributor.committeeMember Jiang, Xun dc.contributor.committeeMember Wood, Lance local.embargo.terms 2020-05-01 local.embargo.lift 2020-05-01 dcterms.accessRights The full text of this item is not available at this time because the student has placed this item under an embargo for a period of time. The Libraries are not authorized to provide a copy of this work during the embargo period. dc.type.dcmi Text dc.format.digitalOrigin born digital dc.description.department Earth and Atmospheric Sciences, Department of thesis.degree.college College of Natural Sciences and Mathematics
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