Yığma yapılar, ülkemizdeki yapı stoğunun büyük bir yüzdesini oluşturan yapılar olup, ana taşıyıcı sistemin yalnızca duvarlardan oluştuğu, deformasyon kabiliyeti neredeyse hiç olmayan dolayısıyla enerji sönümleme kabiliyeti çok düşük, deprem esnasında ani gevrek kırılmalara müsai…
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Seismology is a geophysical tool that can probe the earth and provide insight into processes that are otherwise difficult to observe. I am primarily interested in using seismological methods to detect and study ubiquitous processes that are challenging to observe due to noise so…
In the United States, tropical cyclones (TCs) were the leading cause of natural disaster-related fatalities and Consumer Price Index (CPI)-adjusted costs averaged over the years 1980-2017. Accurately assessing TC-induced extreme winds is crucial to proper risk management related…
Bu çalışmada farklı yapım sistemlerine sahip ahşap minareler incelenmiş olup, bunlardan en yaygın olarak kullanılan iki farklı yapım sistemi ayrıntılı olarak incelenmiştir. Bu minarelerin 1/10 ölçekli maket modelleri yapılarak çeşitli deprem etkilerine maruz bırakılmış, deplasma…
Le phénomène d’interaction sol-structure est très important pour la modélisation des systèmes barrage-fondations et doit, généralement, être réalisé dans le domaine du temps lorsque l’on souhaite prendre en compte les phénomènes non-linéaires pouvant se développer durant un séis…
Grâce au progrès accompli dans le génie parasismique, les analyses dynamiques temporelles linéaires et non linéaires deviennent de plus en plus communes lors de la conception ou l’évaluation des structures de génie civil. La sélection et l’étalonnage d’un nombre de secousses sis…
Oil spill events can be catastrophically harmful to coastal ecosystems, causing considerable and long-term environmental and economic impacts before associated consequences are finally eliminated. Conducting timely, flexible, and accurate surveys immediately after a spill incide…
Geophysical signatures of volcano-hosted geothermal systems in Indonesia are compiled and synthesized. Parameters include electrical resistivity, seismicity, downhole logging, and pressure/temperature data; temperature and pressure states of systems are simulated through numeric…
The first paper presented in this dissertation attempts to examine the igneous history of the younger suite of Harohalli alkaline dykes intruding the Dharwar craton in southern India providing robust constraints on the age of the Harohalli alkaline dyke swarm paleomagnetic pole …
Processes that transport heat and mass govern the long-term evolution of planets and are responsible for surface geological features. This dissertation addresses the thermal and mechanical evolution of icy bodies and the mechanics of geyser and mud volcano eruptions. Some surfac…
Scope and Method of Study: Magnetotelluric and gravity surveys were conducted across the Wadi Kobbania in the Western Desert north of Aswan, Egypt. The Wadi Kobbania has been interpreted as the downstream continuation of the Wadi Abu Subeira, comprising an ancient western and no…
The topography and gravity measurements from missions to Venus and Mars are among a few data available to constrain models of the interior structure and dynamics of these planets. These measurements reveal various intriguing features whose origins have generated debates in the p…
I investigated rifts in multiple stages of their formation, from the failed Mid-Continent Rift (MCR), to the active Red Sea Rift. Each rifting stage presents its own challenges but by studying each stage individually I have gained insight into the rifting process. The MCR, an an…
This thesis characterizes the transfer of magmatic volatiles through the mantle and the crust to the atmosphere through the integration of melt inclusion data for pre-eruptive volatile contents with surface measurements of volcanic degassing (recorded in micro-gravity changes an…
Continental rifting is fundamental to the theory of plate tectonics, yet the force balance driving Earth's largest continental rift system, the East African Rift (EAR), remains debated. The EAR actively diverges the Nubian and Somalian plates spanning ∼5000 km N-S from the Red S…
A rifting episode started in September 2005 with an intrusion of a 60 km-long mega-dike along the Dabbahu-Manda Hararo (DMH) rift segment in Afar, Ethiopia. Between 2005 and 2009 thirteen smaller volume dikes intruded different portions of the rift segment. Out of the 13 dikes, …
Seismic methods using natural earthquakes are commonly applied to investigate the velocity structures of the crust and upper mantle. Among all these methods, seismic tomography is one of the most powerful tools to image the earth’s structure. Recent theoretical and experimental …
In this thesis, I summarize the research that I have done at UC Santa Cruz involving my development of joint inversion approaches using hr-GPS, teleseismic body and surface waves, regional seismic, campaign GPS, InSAR and tsunami datasets, to investigate the kinematic rupture pa…
Cycle skips (breaks) in seismic data are occasionally irresolvable using conventional static correction programs. Such artificial cycle skips can be misleading for interpreters and introduce false subsurface images. After applying datum static corrections using either the single…