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.
Results
Showing 1 to 20 of 75 for “"tsunamis"”.
-
Catastrophic Tsunamis In the Indonesian Archipelago
Tsunamis are not rare events for the Indonesian Archipelago as a consequence of four major plate boundaries that meet and collide, and producing highly active seismic zone that is mostly located under the sea. The ‘tsunami season’ within this region started in 1992 at Hading Bay, Flores Island, …
-
The Automation of Numerical Models of Coseismic Tsunamis
… could potentially be of significant usefulness. Tsunamis are most often caused by earthquakes in subduction zones, which generates coupled uplift and subsidence, and displaces the water column. The behavior of the fault failure is difficult to describe in the short term, often requiring seismic …
-
The Amplification of Tsunamis by Mercury Bay, New Zealand
… of the worst scenarios of earthquake generated tsunamis from this source. In particular, the Sumatra 2004 and Tohuku 2011 tsunami events have suggested that a magnitude Mw 9 to 9.5 subduction megathrust earthquake is a plausible scenario. Merian’s formula was used to obtain the natural resonant …
-
Landslide generated tsunamis : numerical modeling and real-time prediction
Submarine landslides can generate local tsunamis posing a hazard to human lives and coastal facilities. Two major related problems are: (i) quantitative estimation of tsunami hazard and (ii) early detection of the most dangerous landslides. This thesis focuses on both those issues by providing …
-
Generation of Very Long Waves in Laboratory for Tsunamis Research
… is motivated by recent field observations of tsunamis which point out that use of solitary waves as model tsunami is not theoretically justified. In order to generate very long waves in laboratory, a bottom-tilting wave maker is designed and used at the University of Dundee. This new type of …
-
Rapid Prediction of Tsunamis and Storm Surges Using Machine Learning
Tsunami and storm surge are two of the main destructive and costly natural hazards faced by coastal communities around the world. To enhance coastal resilience and to develop effective risk management strategies, accurate and efficient tsunami and storm surge prediction models are needed. However, …
-
Catastrophic Landscape Modification from Massive Landslide Tsunamis: An Example from Taan Fiord, Alaska
… magnitude greater than most previously surveyed tsunamis. Extensive modifications observed and documented on several low gradient fan deltas within the fiord make Taan Fiord an excellent laboratory for characterizing geomorphic signatures of a high runup tsunami event. Although interest in this …
-
Physics-based modeling of earthquake cycles and tsunamis in strike-slip fault zones
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
-
Atmospheric and Ionospheric Responses to Acoustic and Gravity Waves Driven by Earthquakes and Tsunamis
… waves (AGWs) triggered by earthquakes and tsunamis, and their effects on mesopause airglow and ionospheric plasma.</p> <p>First, we examine coupling mechanisms based on case studies for two inland earthquakes. We demonstrate that the incorporation of near-epicentral seismic wave dynamics, …
-
Modeling of Potential Historical Tsunamis from Large Earthquakes in the Izu-Bonin Mariana Subduction Zone
<p>The Izu-Bonin Mariana (IBM) subduction zone is an over 3000-km long oceanic-oceanic convergence zone with no instrumental record of great subduction-zone earthquakes (M<sub>w</sub> > 8.0). Due to the lack of great earthquakes and the oceanic-oceanic subduction style, previous researchers have …
-
The MEso-SCAle Particle Transport model (MESCAPT) for studying sediment dynamics during storms and tsunamis
Tsunamis and storms are the most devastating coastal hazards that can cause great loss of life and infrastructure damage. To assess tsunami and storm hazard, the magnitude and frequency of each type of event are needed. However, major tsunamis and storms are very infrequent, especially tsunamis, …
-
Mejora en la selección de medidas de prevención y preparación para la gestión del riesgo de sismos y tsunamis
… de fenómenos naturales tales como sismos y tsunamis, como han venido sucediendo a lo largo de su historia, tales fenómenos naturales combinados con una inadecuada organización de la infraestructura social tanto en procesos físicos, sociales, económicos y políticos, etc. facilitan que estos …
-
High-Fidelity Numerical Simulation of Shallow Water Waves
Tsunamis impose significant threat to human life and coastal infrastructure. The goal of my dissertation is to develop a robust, accurate, and computationally efficient numerical model for quantitative hazard assessment of tsunamis. The length scale of the physical domain of interest ranges from …
-
Identifying Overwash Deposits in Arid Environments: Towards a Millennial-Scale Record of Cyclones and Makran Trench Tsunamis from Sur Lagoon, Oman
<p>Coastlines along the Arabian Sea are susceptible to marine inundation from Makran Subduction Zone (MSZ) earthquakes and tropical cyclones. Sediments deposited by these forms of inundation can expand the decadal instrumental record of events to include millennial timescales in regions without …
-
Geological recognition of abrupt marine invasions in two coastal areas of Portugal
Abrupt marine invasions such as tsunamis and storms are particularly devastating for coastal areas. They may also leave a permanent record in the sedimentary deposits which is the principal focus of this thesis. In historical times the most destructive tsunami that affected Europe was the AD 1755 …
-
Tsunami monitoring using airglow imaging systems
Tsunamis generate internal gravity waves (IGWs) that propagate vertically into the atmosphere and can create detectable signatures in the ionosphere. These signatures have consistently been observed in the presence of a tsunami for over a decade in the total electron content and for over 5 years in …
-
Las ciudades de El Callao (Perú) y Concepción (Chile) tras los terremotos y tsunamis de 1746 y 1751: estudio comparado de cómo sobrevivir a un desastre
… (Reino de Chile) donde el número de terremotos, tsunamis, alzamientos y hundimientos de terrenos y otros procesos físicos fue bastante elevado debido a la activa geodinámica de la zona. El periodo de reacción de la población (resiliencia) y reconstrucción es, sin lugar a duda, la parte más …
-
Bōsai, Tsunami
… of the islands is incredibly vulnerable to mega-tsunamis as the country is situated at the collision plate forming active troughs capable of generating forcefully destructive tsunami waves. The Great East Japan Earthquake that hit the Tohoku region in 2011 exposed disaster planning challenges and …
-
Investigating Taphonomic Changes of Deposits and Modeling of the 2010 Earthquake and Tsunami in South-Central Chile
… written catalog of historic earthquakes and tsunamis, but such records can be subject to inconsistencies. Dated tsunami deposits are more objective data that provide hard evidence of past tsunamis. The inland extent of deposits from past tsunamis (paleodeposits) can be used in tsunami …
Page 1 of 4