Surge and coastal inundation study of September 2014 storm in Giresun, Black Sea

Aydın, Deniz Can
In Turkey, due to the fact that the Black Sea coast is vulnerable to storms and coastal hazards, further comprehensive studies for storm surge and consequent coastal inundation are necessary. The aim of this study is to investigate wave formation under storm conditions and analyze coastal flooding in Giresun during the storm event occurred between 23-26 September 2014. For this purpose numerical studies are carried out in two phases. In phase 1, coupled ADCIRC+SWAN model is used for examining wave generation and in phase 2, wave parameters obtained from these runs are used to investigate coastal flooding. In phase 1, sensitivity of the coupled model is investigated by altering the shared information among circulation and wave models. It is observed that preventing water elevation and current information passing from ADCIRC to SWAN leads to decreased wave heights and among them, current information is found to be more effective. Moreover disregarding wave effects result in negligible difference in water elevations which is attributed to relatively low wind speeds. At Giresun cape, significant wave heights obtained from ADCIRC+SWAN simulations range between 4.5m and 7.5m with peak periods around 11.25s. In phase 2, shallow water numerical model NAMI-DANCE is used. Coastal inundation and flow depths are computed for three selected wave heights. Maximum inundated area is computed to be close to 0.095km2. Major inundation is computed at Giresun cape, its west and east, and also at the breakwater and harbor. The results are compared with observations and fairly well agreement is obtained. 


Potential tsunami hazard along the southern Turkish coast
Aydin, Baran; Sharghivand, Naeimeh; Bayazitoglu, Ozge (Elsevier BV, 2020-06-01)
The aim of this study is to determine the tsunami potential of the southern Turkish coast through hypothetical earthquake scenarios developed for several critical coastal sites in the region. A well-known tsunami numerical model (MOST) is utilized to calculate the run-up and inundation of the subsequent tsunami waves. The coastal regions selected to realize the aim of the study are Akkuyu and Yesilovacik from Mersin and Yumurtalik from Adana, which are chosen for their industrial and environmental importanc...
Calibration and evaluation of the 3rd generation wave models under extreme conditions in black sea basin
Kirezci, Çağıl; Özyurt Tarakcıoğlu, Gülizar; Department of Civil Engineering (2016)
In this study, performances of 3rd generation wave models, SWAN and WAVEWATCH III, under storm conditions in Black Sea are compared considering two different wind source (CFSR and ECMWF operational) data. Basic wave parameters (outputs of the spectral wave models) demonstrate that the governing physical processes in deep water consist of three terms; wind-wave interaction, dissipation of energy due to whitecapping and swell, and nonlinear wave-wave interactions. Effects of different methodologies for the so...
Earthquakes vulnerability and disaster risk Georgia case
Tsereteli, Nino; Varazanashvili, Otar; Askan Gündoğan, Ayşegül (null; 2015-04-12)
The Republic of Georgia, located on the East coast of the Black Sea, is prone to multiple natural hazards, the most dangerous and devastating of which are strong earthquakes. This work issues a call for advance planning and action to reduce natural disaster risks, notably seismic risk through the investigation of vulnerability and seismic hazard for Georgia. Ground motion prediction equations are essential for several purposes ranging from seismic design and analysis to probabilistic seismic hazard assessme...
Quality Assessment of the Armourstones for Some Black Sea Rubble Mound Breakwaters, Turkey
Ozden, U. A.; Topal, Tamer (2007-01-01)
The Black Sea coastline is a hazardous region in Turkey, especially in winter, due to the dominant wave action. Therefore, rubble mound breakwaters used as ship shelters are vital structures, especially for the fishermen. Construction of the breakwater requires good quality, durable armourstones. Due to the nature of the rubble mound breakwaters, armourstones of various sizes and types are used in the construction of these structures. The deterioration of these armourstones with time may result in the failu...
Numerical modelling of the 1766 (May) earthquake tsunami scenario along the northern coasts of Marmara Sea, Turkey
Vardar, Hande; Alpar, Şaban Bedri; Yalçıner, Ahmet Cevdet (null; 2018-04-09)
Following the recent 1999-earthquake disaster and its associated tsunami that occurred in the Izmit Gulf, eastern part of the Marmara Sea; much research has been carried out to determine the tsunami potential, as well as their possible effects along the adjacent coast. Based on the available archival data, many tsunamis (e.g. 989, 1343, 1509, 1766, 1894 and 1912) have affected the low-lying coasts, bays, estuaries, straits and possibly coastal lagoons along the northern coast of the Marmara Sea. In the pres...
Citation Formats
D. C. Aydın, “Surge and coastal inundation study of September 2014 storm in Giresun, Black Sea,” M.S. - Master of Science, Middle East Technical University, 2016.