A methodology for digital elevation model uncertainty evaluation : uncertainy propagation in flood inundation modeling

Yılmaz, Musa


A case study on development of flood mitigation measures
Durğut, Aybike Ceren; Yanmaz, Ali Melih; Department of Civil Engineering (2023-1-25)
Severe floods have negative impacts on the infrastructural facilities in residential areas and inconveniences to socio-economical conditions. Therefore, it is a must to mitigate these adverse effects by implementing some structural measures. This study deals with the proposal of some detention basins in the upstream part of a critical area, which is located between the embankments of Ankara-Eskişehir highway and Ankara-İstanbul conventional railway. It is intended to offset the possibility of overtopp...
A classification approach for adaptive mitigation of SYN flood attacks Preventing performance loss due to SYN flood attacks
Degirmencioglu, Alptugay; Erdogan, Hasan Tugrul; Mizani, Mehrdad A.; Yilmaz, Oguz (2016-04-29)
SYN flood is a commonly used Distributed Denial of Service (DDoS) attack. SYN flood DDoS attacks consume considerable amount of resources in the target machine. Even with straightforward mitigation solutions, any attack causes resource waste and performance loss in the server, rendering it unable to provide service to legitimate clients. We propose an approach for SYN flood attack mitigation based on supervised learning classification methods which identify and block SYN flood traffic before they reach thei...
Performance of FLO-2D software on flood inundation analysis
Şahin, Ahmet Nazım; Aydın, İsmail; Department of Civil Engineering (2016)
Yeşilçay river basin is one of the main sources of İstanbul urban water supply system through the “Yeşilçay Drinking Water Plan”. Construction of two dams: Sungurlu Dam on Sungurlu stream and Osmangazi Dam on Göksu River have started to provide domestic and industrial water, flood control and energy production. Ağva is a small town which has population of about 2,500 in winter time but hosts around 15,000 people in the summer time located on the intersection of Göksu and Sungurlu streams called Yeşilçay riv...
An experimental and computational approach to pH-dependent self-aggregation of poly(2-isopropyl-2-oxazoline)
Çağlı, Eda; Yıldırım, Erol; Yang, Shuo-Wang; Erel Göktepe, İrem (2019-02-15)
Besides temperature, self-aggregation of poly(2-isopropyl-2-oxazoline) (PIPOX) can also be triggered via pH in aqueous solution (25 degrees C, pH > 5). Lowest energy structures and interaction energies of PIPOX with H3O+, OH-, and H2O were calculated by DFT methods showed that, in addition to their ability to protonate PIPOX, H3O+ ions had strong interaction with both water and PIPOX in acidic conditions. H3O+ ions acted as compatibilizer between PIPOX and water and increased the solubility of PIPOX. OH- io...
Modeling the Evaporation of Drying Sessile Droplets with Buoyancy Driven Internal Convection
Akdağ, Osman; Akkuş, Yigit ; Çetin, Barbaros ; Dursunkaya, Zafer (2021-05-18)
Droplet evaporation is a fundamental phenomenon encountered in diverse applications such as inkjet printing, DNA mapping, film coating, and electronics cooling. Modeling the evaporation process of a sessile droplet is complicated because of the coupling of several physical phenomena occurring in different phases and various magnitudes such as the buoyant convection of the liquid in millimeter size droplets and that of the surrounding air/water vapor mixture, in the order of meters. In this study, the theore...
Citation Formats
M. Yılmaz, “A methodology for digital elevation model uncertainty evaluation : uncertainy propagation in flood inundation modeling,” M.S. - Master of Science, Middle East Technical University, 2003.