... to northwesterly winds spread the ejecta over the Eastern Mediterranean region [3]. The phrea... more ... to northwesterly winds spread the ejecta over the Eastern Mediterranean region [3]. The phreatomagmatic eruption of the last phase led to the collapse of the Stronghyle (pre-eruption) volcano leading to formation of the present shape of the Santorini caldera Figure 1). In recent ...
Advances in natural and technological hazards research, 1993
The seismotectonic characteristics of the Anatolian fault zones are investigated, and the discont... more The seismotectonic characteristics of the Anatolian fault zones are investigated, and the discontinuous crack propagations along these zones are discussed by examining macro earthquake activities and the historical earthquake data. Some of the tsunami observations in the surrounding seas and lakes of Anatolia and their relations to the fault systems are discussed.
MODELING OF TSUNAMIS IN THE EASTERN MEDITERRANEAN AND COMPARISON WITH CARD3BEAN AHMET CEVDET YALC... more MODELING OF TSUNAMIS IN THE EASTERN MEDITERRANEAN AND COMPARISON WITH CARD3BEAN AHMET CEVDET YALCINER Assoc. Prof. Dr., Middle East Technical University, Department of Civil Engineering, Ocean Engineering Research Center, 06531 ...
Advances in natural and technological hazards research, 1995
AN INVESTIGATION ON THE PROPAGATION OF TSUNAMIS IN THE AEGEAN SEA BY MATHEMATICAL MODELING AC YAL... more AN INVESTIGATION ON THE PROPAGATION OF TSUNAMIS IN THE AEGEAN SEA BY MATHEMATICAL MODELING AC YALCINER Coastal and Harbor Engineering Center, CivilEngineering Department, Middle East Technical University, Ankara 06531, Turkey U. KURAN ...
Historical records with recent events reveal that tsunamis are threatening the western coast of T... more Historical records with recent events reveal that tsunamis are threatening the western coast of Turkey due to intensely active seismicity of the Eastern Mediterranean Sea. The most recent tsunami events in the region (30 October 2020 Izmir-Samos and 20 July 2017 Bodrum-Kos) restated that the cities located near the Eastern Mediterranean and connected seas should consider tsunami events in their disaster mitigation plans. Bodrum is one of the most critical coastal districts, vulnerable to marine hazards with popular hotels, numerous coastal facilities, long and famous beaches, cultural, historical and touristic places. Tsunami evacuation planning is required for Bodrum district to mitigate the damage caused by destructive tsunami waves inundating on land. In this study, the geospatial distribution of pedestrian evacuation time is calculated based on selected credible worst-case scenarios. A widely used anisotropic least-cost-distance (LCD) model is applied via the Pedestrian Evacuation Analyst Tool (PEAT) to calculate the required time for a pedestrian to evacuate the region under tsunami threat based on the selected scenarios. The model includes landscape properties that affect the walking pace of pedestrians during an evacuation, such as elevation, slope, land cover, and land use types (beach, road, bushes, water bodies, any barriers). The resultant pedestrian evacuation time maps show that the maximum time needed for a pedestrian is 8, 6, 5, 4, 3 minutes for highly populated coastal settlements of Bodrum, which are Central Bodrum, Yahsi, Akyarlar-Karaincir-Aspat Bays, Bitez, and Gumbet Bays, respectively.
The movement of sea bottom or ground sediment material by tsunami cause erosion, deposition and h... more The movement of sea bottom or ground sediment material by tsunami cause erosion, deposition and hence bathymetry and topogrphy changes. The unexpected depth decrease at some parts of the enclosed basins and harbors may result in lack of movements of vessels. In order to understand the sediment movement inside the enclosed basins, Haydarpasa port in the sea of Marama is selected as a case study to understand the motion of tsunamis inside the port and identify their effects on harbor functions. The highest populated mega city Istanbul, located at north coast of the Sea of Marmara is one of the main centers of major economic activities in the region. In the study, the spatial and temporal changes of main tsunami parameters are investigated and their adverse effects on harbor performance are identified by analyzing the critical tsunami parameters (water elevation, current speed and momentum fluxes) in the port. Furthermore, the morphological changes due to tsunami induced flows are also considered. The morphological changes due to tsunamis can be governed by bathymetry and topography, tsunami current and the characteristics of ground material. Rouse number is one of the indicators to describe the initiation of sediment motion and transport modes under the flow. Therefore the morphological changes can be monitored by monitoring the change of the Rouse number. In this study the spatial and temporal change of Rouse number and hence modes of sediment transport in Haydarpasa port during a tsunami is investigated. Finally the functional loss of the port and the necessary strategies for reduction of tsunami impact and increase of resilience are also discussed. The research leading to these results has received funding from the European Union's Seventh Framework Programme (FP7/2007-2013) under grant agreement No. 603839 (Project ASTARTE - Assessment, Strategy and Risk Reduction for Tsunamis in Europe)
... to northwesterly winds spread the ejecta over the Eastern Mediterranean region [3]. The phrea... more ... to northwesterly winds spread the ejecta over the Eastern Mediterranean region [3]. The phreatomagmatic eruption of the last phase led to the collapse of the Stronghyle (pre-eruption) volcano leading to formation of the present shape of the Santorini caldera Figure 1). In recent ...
Advances in natural and technological hazards research, 1993
The seismotectonic characteristics of the Anatolian fault zones are investigated, and the discont... more The seismotectonic characteristics of the Anatolian fault zones are investigated, and the discontinuous crack propagations along these zones are discussed by examining macro earthquake activities and the historical earthquake data. Some of the tsunami observations in the surrounding seas and lakes of Anatolia and their relations to the fault systems are discussed.
MODELING OF TSUNAMIS IN THE EASTERN MEDITERRANEAN AND COMPARISON WITH CARD3BEAN AHMET CEVDET YALC... more MODELING OF TSUNAMIS IN THE EASTERN MEDITERRANEAN AND COMPARISON WITH CARD3BEAN AHMET CEVDET YALCINER Assoc. Prof. Dr., Middle East Technical University, Department of Civil Engineering, Ocean Engineering Research Center, 06531 ...
Advances in natural and technological hazards research, 1995
AN INVESTIGATION ON THE PROPAGATION OF TSUNAMIS IN THE AEGEAN SEA BY MATHEMATICAL MODELING AC YAL... more AN INVESTIGATION ON THE PROPAGATION OF TSUNAMIS IN THE AEGEAN SEA BY MATHEMATICAL MODELING AC YALCINER Coastal and Harbor Engineering Center, CivilEngineering Department, Middle East Technical University, Ankara 06531, Turkey U. KURAN ...
Historical records with recent events reveal that tsunamis are threatening the western coast of T... more Historical records with recent events reveal that tsunamis are threatening the western coast of Turkey due to intensely active seismicity of the Eastern Mediterranean Sea. The most recent tsunami events in the region (30 October 2020 Izmir-Samos and 20 July 2017 Bodrum-Kos) restated that the cities located near the Eastern Mediterranean and connected seas should consider tsunami events in their disaster mitigation plans. Bodrum is one of the most critical coastal districts, vulnerable to marine hazards with popular hotels, numerous coastal facilities, long and famous beaches, cultural, historical and touristic places. Tsunami evacuation planning is required for Bodrum district to mitigate the damage caused by destructive tsunami waves inundating on land. In this study, the geospatial distribution of pedestrian evacuation time is calculated based on selected credible worst-case scenarios. A widely used anisotropic least-cost-distance (LCD) model is applied via the Pedestrian Evacuation Analyst Tool (PEAT) to calculate the required time for a pedestrian to evacuate the region under tsunami threat based on the selected scenarios. The model includes landscape properties that affect the walking pace of pedestrians during an evacuation, such as elevation, slope, land cover, and land use types (beach, road, bushes, water bodies, any barriers). The resultant pedestrian evacuation time maps show that the maximum time needed for a pedestrian is 8, 6, 5, 4, 3 minutes for highly populated coastal settlements of Bodrum, which are Central Bodrum, Yahsi, Akyarlar-Karaincir-Aspat Bays, Bitez, and Gumbet Bays, respectively.
The movement of sea bottom or ground sediment material by tsunami cause erosion, deposition and h... more The movement of sea bottom or ground sediment material by tsunami cause erosion, deposition and hence bathymetry and topogrphy changes. The unexpected depth decrease at some parts of the enclosed basins and harbors may result in lack of movements of vessels. In order to understand the sediment movement inside the enclosed basins, Haydarpasa port in the sea of Marama is selected as a case study to understand the motion of tsunamis inside the port and identify their effects on harbor functions. The highest populated mega city Istanbul, located at north coast of the Sea of Marmara is one of the main centers of major economic activities in the region. In the study, the spatial and temporal changes of main tsunami parameters are investigated and their adverse effects on harbor performance are identified by analyzing the critical tsunami parameters (water elevation, current speed and momentum fluxes) in the port. Furthermore, the morphological changes due to tsunami induced flows are also considered. The morphological changes due to tsunamis can be governed by bathymetry and topography, tsunami current and the characteristics of ground material. Rouse number is one of the indicators to describe the initiation of sediment motion and transport modes under the flow. Therefore the morphological changes can be monitored by monitoring the change of the Rouse number. In this study the spatial and temporal change of Rouse number and hence modes of sediment transport in Haydarpasa port during a tsunami is investigated. Finally the functional loss of the port and the necessary strategies for reduction of tsunami impact and increase of resilience are also discussed. The research leading to these results has received funding from the European Union's Seventh Framework Programme (FP7/2007-2013) under grant agreement No. 603839 (Project ASTARTE - Assessment, Strategy and Risk Reduction for Tsunamis in Europe)
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Papers by Ahmet Yalciner