Akademik Veri Yönetim Sistemi
14th INTERNATIONAL CONFERENCE ON HYDROSCIENCE AND ENGINEERING, İzmir, Türkiye, 26 - 27 Mayıs 2022, ss.623-627, (Özet Bildiri)
Uncontrolled urbanization and inadequate infrastructure
result in frequent flooding. Flood disaster affects life negatively and cause loss of
life and property. Flood model development has crucial importance to mitigate
flood hazard and to prevent loss of life. Especially, it is necessary to model
the streams passing through urban areas and to generate flood inundation maps. Moreover,
existing flood inundation map should be updated by considering land use change
in urban areas. Engineering structures such as bridges, culverts or retaining
walls should be reconstructed utilizing the flood maps, if they are not enough
to carry maximum flowrate in the stream. In addition, the current settlement
areas having flood risk near the streams should be moved to safer areas with
the guidance of the flood maps. In this study, the flood disaster occurred on
August 11, 2021 in Ezine (in Kastamonu Province) and Ayancık (in Sinop Province)
Streams are examined. For this purpose, firstly, the hydrologic-hydraulic models
for each stream watershed are constituted by using Hydrologic Engineering
Center-Hydrologic Modeling System (HEC-HMS) and Hydrologic Engineering Center-River
Analysis System (HEC-RAS), respectively. Then, the flood inundation maps are
presented via Watershed Modeling System (WMS). The model flood depths are compared
with the images and videos taken during the flood event to validate the models.
Finally, the reasons that cause the flood disaster in Bozkurt and Ayancık Districts
and the precautions to mitigate the flood risk are discussed.