Istanbul Earthquake Rapid Response System: Methods and practices     

Karin Sesetyan  Can ZulfikarMine Demircioglu  Ufuk HancilarYaver Kamer  Mustafa Erdik 《Soil Dynamics and Earthquake Engineering》2011

Potential impact of large earthquakes on urban societies can be reduced by timely and correct action after a disastrous earthquake. Modern technology permits measurements of strong ground shaking in near real-time for urban areas exposed to earthquake risk. The Istanbul Earthquake Rapid Response System equipped with 100 instruments and two data processing centers aims at the near real time estimation of earthquake damages using most recently developed methodologies and up-to-date structural and demographic inventories of Istanbul city. The methodology developed for near real time estimation of losses after a major earthquake consists of the following general steps: (1) rapid estimation of the ground motion distribution using the strong ground motion data gathered from the instruments; (2) improvement of the ground motion estimations as earthquake parameters become available and (3) estimation of building damage and casualties based on estimated ground motions and intensities. The present paper elaborates on the ground motion and damage estimation methodologies used by the Istanbul Earthquake Rapid Response System with a special emphasis on validation and verification of the different methods.  相似文献   

Evaluation of a Chimney Drain Design in an Earthfill Dam     

Morris L. Maslia  Mustafa M. Aral 《Ground water》1982,20(1):22-31

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The migration of the Danagla to port Sudan: A case study on the impact of migration on the change of identity     

Prof. Mustafa M. Khogali Dr. 《GeoJournal》1991,25(1):63-71

The study of the history and dynamics of the migration of the Danagla to Port Sudan proves that they belong to the most active groups in the Sudan. Though they have completely dropped their agricultural background and adopted an entirely urban character they still have close contacts both to each other in town and to their home land. Their migration is, nontheless, a permanent one.  相似文献   

Linking Access and Vulnerability: Perceptions of Irrigation and Flood Management in Pakistan     

Daanish Mustafa 《The Professional geographer》2002,54(1):94-105

This article reports the results of a survey conducted in four villages in central Pakistan regarding people's perceptions about irrigation‐ and flood‐related issues. The article uses the perception studies methodology from the human ecology school to address the political ecology agenda in resource and hazards geography. The log‐linear analysis of the survey data shows that people are knowledgeable about social power differentials and interactions between various social factors in influencing their access to resources and vulnerability to floods. The article further demonstrates that water users and vulnerable populations are much more likely to suggest social explanations than naturalistic or fatalistic explanations for their differential access to irrigation water and vulnerability to flood hazard.  相似文献   

Flow against dispersion in two-dimensional regions   总被引：1，自引：0，他引：1  

Mustafa M. Aral  Yi Tang 《Journal of Hydrology》1992,140(1-4):261-277

In field applications, upstream spreading of contaminant plumes may be controlled by the flow of fresh water in a direction opposite to the dispersive expansion direction of the plume. In the current literature this type of control is identified as flow against dispersion or contrary flow. In this study analytic methods are used to investigate contrary flow conditions for two-dimensional applications. In particular, special attention is given to the dispersive spread of the contaminant plume in the transverse direction under equilibrium flow against dispersion. Typical problems analyzed emphasize the effect of adsorption and transverse dispersion on the overall control process. Problems analyzed indicate that equilibrium flow velocities deduced from one-dimensional analysis, which may balance the dispersive spread of the plume in the longitudinal direction, represent an over design condition when these equilibrium velocities are compared with the conditions generated from a two-dimensional model for a downstream source which is finite in the transverse direction.  相似文献   

Effect of particle characteristics on the evolution of particle size,particle morphology,and fabric of sands loaded under uniaxial compression     

Ganju  Eshan  Kılıç  Mustafa  Prezzi  Monica  Salgado  Rodrigo  Parab  Niranjan  Chen  Wayne 《Acta Geotechnica》2021,16(11):3489-3516

Acta Geotechnica - This paper presents the results and analyses of uniaxial compression experiments performed on three silica sands. The sands have comparable particle-size distributions, but their...  相似文献   

Neotethyan Evolution of the Ankara Mélange,Turkey: An Intraoceanic Subduction-Accretion System     

Ender Sar?fak?o?lu  Y?ld?r?m Dilek  Mustafa Sevin 《《地质学报》英文版》2015,89(Z2):9-9

<正>We report here new geochemical and geochronological data from mafic-ultramafic rock suites in the Ankara Mélange in north-central Turkey,and present a new tectonic model for its origin.Considered as one of most important relics of the Neotethyan realm in the region,the Ankara Mélange occurs between the Sakarya Continent  相似文献   

Landslide susceptibility mapping by frequency ratio and logistic regression methods: an example from Niksar–Resadiye (Tokat,Turkey)     

Gokhan Demir  Mustafa Aytekin  Aykut Akgun 《Arabian Journal of Geosciences》2015,8(3):1801-1812

Turkey confronts loss of life and large economic losses due to natural disasters caused by its morphologic structure, geographical placement, and climate characteristics. The Kuzulu (Koyulhisar) landslide, which caused loss of life and property on 17th March 2005, occurred in an area near the country’s most important active fault, the North Anatolian Fault Zone. To mitigate and prevent landslide damages, prediction of landslide susceptibility areas based on probabilistic methods has a great importance. The purpose of this study was to produce a landslide susceptibility map by the logistic regression and frequency ratio methodologies for a 733-km² area near the North Anatolian Fault Zone from the southeast of Niksar to Resadiye in Tokat province. Conditioning parameters, such as elevation, slope gradient, slope aspect, distance to streams, roads, and faults, drainage density, and fault density, were used in the analysis. Before susceptibility analysis, the landslides observed in the area were separated into two groups for use in analysis and verification, respectively. The susceptibility maps produced had five different susceptibility classes such as very low, low, moderate, high, and very high. To test the performance of the susceptibility maps, area under curve (AUC) approach was used. For the logistic regression method, the AUC value was 0.708; while for the frequency rate method, this value was 0.744. According to these AUC values, it could be concluded that the two landslide susceptibility maps obtained were successful.  相似文献   

Chemical fractionation,mobility and environmental impacts of heavy metals in greenhouse soils from Çanakkale,Turkey     

Ali Sungur  Mustafa Soylak  Hasan Özcan 《Environmental Earth Sciences》2016,75(4):334

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Effects of iron and chrome slag on the index compaction and strength parameters of clayey soils     

Mustafa Vekli  Cenk Cuma Çadır  Ferhat Şahinkaya 《Environmental Earth Sciences》2016,75(5):425

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