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 “"hazard maps"”.
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U.S. National Liquefaction Hazard Maps and their Implications for Engineering Practice and Policy
… This study introduces U.S. National Liquefaction Hazard Maps (NLHMs) developed using a mechanics-informed, machine-learning geospatial liquefaction model trained on more than 37,000 cone penetration tests from the U.S. and abroad. The model surrogates state-of-practice liquefaction models, …
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Estimation of Non-Linear Seismic Site Effects for Deep Deposits of the Mississippi Embayment
… the thesis describes the probabilistic seismic hazard analysis with non-linear site effect performed in the ME to develop site coefficients. Current site coefficients, proposed in National Earthquake Hazard Reduction Program (NEHRP), are used with USGS hazard maps to develop site specific …
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Analysis of flood hazard under consideration of dike breaches
… extreme water levels and long flood durations. Hazard and risk assessments for river reaches protected by dikes have not adequately considered the fluvial inundation processes up to now. Particularly, the processes of dike failures and their influence on the hinterland inundation and flood wave …
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Quality control and analysis of an updated wind gust data set in the United States
… data set used in the current ASCE/SEI 7-22 wind hazard maps. A rigorous quality control methodology was implemented using manual inspection of archived Meteorological Aerodrome Reports (METAR), 1-minute ASOS data, radar data, and surface analysis. In addition, 1-minute data is used to explore how …
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A GIS-Based Volcanic Hazard and Risk Assessment of Eruptions Sourced within Valles Caldera, New Mexico
… of the spatial extent of different volcanic hazards and the assessment of social and economic vulnerability of the area at risk.<p>In this study, hazard maps are generated with a GIS-based volcanic hazards tool designed to simulate ash fallout, pyroclastic density currents (PDCs), and lava …
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Investigating Compound Flood Using Remote Sensing And Hydrodynamic Modeling
… cloudy region and creates probabilistic flood hazard maps using satellite imagery. The results conclude that the flood delineation algorithm developed in this study is simple (not cloud restricted), yet effective and comparable to complex algorithms (cloud restricted) requiring multiple …
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Seismic Site Response and Extraction of Dynamic Soil Behavior From Downhole Array Measurements
… surface motions. PSHA-NL, probabilistic seismic hazard analysis with nonlinear site effects, can be used to estimate seismic hazard with the effect of deep deposits. This thesis extends the PSHA-NL procedure to incorporate a finite fault model in PSHA without applying artificial caps on computed …
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Assessing the Seismic Hazard in Charleston, South Carolina: Comparisons Among Statistical Models
Seismic hazard calculations for sites in eastern North America have traditionally assumed a Poisson process to describe the temporal behavior of earthquakes and have employed the Gutenberg-Richter relationship to define the frequency distribution of earthquake magnitude. For sites in areas where …
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Wildfire Risk Assessment Using Convolutional Neural Networks and Modis Climate Data
… severe. Wildfire risk assessment and hazard maps are currently employed by fire services, but can often be outdated. This paper introduces an image-based dataset using climate and wildfire data from NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS). The dataset consists of …
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Volcanostratigraphy using geophysical methods on La Fossa di Vulcano (S-Italy)
… civil protection program, normally combined with hazard maps, exists. Optimising of hazard maps and the associated hazard assessment implies a detailed knowledge of the volcanostratigraphy, because the deposits provoke information on the potential behaviour during a new activity cycle. Pyroclastic …
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Landslide Hazard Assessment for Fayzabad District, Badakhshan Province, Afghanistan
… is one of those most impacted by landslide hazards in Afghanistan, accounting for 71% of all national landslide fatalities reported between 2012 and 2017. Necessary elevation data did not cover the very south of Fayzabad District; consequently, this study focuses on the northern two thirds …
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Modeling Cle Elum Reservoir Shoreline Erosion: GIS Analysis to Support Cultural and Environmental Resource Management, Yakima Basin, Washington
… the long-term. The product of this analysis were hazard maps indicating the relative risk of shoreline erosion. These maps formed the basis of policy recommendations including increased shoreline protection along southeastern shoreline and the implementation of a long-term monitoring program for …
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Annual Exceedance Probability Analysis
… map can be more useful than traditional flood hazard maps, since it makes it possible to evaluate the probability of flooding at any location within the floodplain. In the process of creating the AEP map, it is necessary to run number of simulations in order to accurately represent the …
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Remote Sensing and Terramechanics Study of Mars using Orbital and Rover Data Sets
… This includes generation and use of mobility hazard maps as a tactical planning tool. A detailed stratigraphic and mineralogical description of a candidate new landing site, Aram Chaos: ~3┬░N, 339┬░E), is presented based on orbital data primarily from the Mars Reconnaissance Orbiter. Two …
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Seismic Source and Attenuation Studies in the Central and Eastern United States
… the ground motion and associated seismic hazard of earthquakes in the central and eastern United States (CEUS), this dissertation focuses on the source parameters and wave propagation characteristics of both tectonic earthquakes and induced earthquakes in the CEUS. The infrequent …
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Seismic hazard analysis and seismic slope stability evaluation using discrete faults in northwestern Pakistan
… mitigating structures based on proper seismic hazard and seismic slope stability analyses. This study presents the methodology and results of seismic hazard and slope stability analyses in northwestern Pakistan. The first part of the thesis describes the methodology used to perform …
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Predicting earthquake casualty rates accounting for community vulnerability
… 2013 and 2017, respectively. Using seismic hazard maps, the dissertation further applies the proposed methodology to conduct seismic risk analyses to predict the expected casualty rates and counts due to earthquakes in the future years. Although the proposed methodology is presented to …
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An Economic Analysis of Evolving Health Hazards
Health hazards (e.g., West Nile virus and antibiotic resistance) by their nature are detrimental to the health of mankind and are a vexing problem for society. Health authorities awareness of the rising health care costs associated with these health hazards highlights the need to undertake research …
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An Examination of Site Response in Columbia, South Carolina: Sensitivity of Site Response to "Rock" Input Motion and the Utility of Vs(30)
… deaggregations from the 2002 National Seismic Hazard Maps, representing the characteristic Charleston source. The U. S. Geological Survey (2002) uniform hazard spectra are used to develop 2% in 50 year probability of exceedance input ground motions for both B-C boundary and hard rock outcrop …
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Seismic Hazard Assessment for Mainland China Based on Spatially Smoothed Seismicity and Projected Sets of Ground Motion Models
The latest version of the Chinese seismic hazard map (CSHM) (i.e., fifth-generation CSHM) was developed based on the delineated seismic source model, which is defined based on geological and seismological information but also with some subjectivities. The results of the CSHM were presented in terms …
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