STRUCTURAL FLOOD ANALYSIS BASED ON THE HYDRAULIC MODEL OF THE KÜÇÜK AKSU RIVER

Year 2022, Volume: 10 Issue: 3, 1084 - 1096, 30.09.2022

Tahsin Baykal , Özlem Terzi , Erhan Şener

https://doi.org/10.21923/jesd.1099665

Cited By: 1

Abstract

In this study, flood risk areas were determined with Hec-RAS hydraulic model for the Küçük Aksu River in Antalya, Turkey. Firstly, Hec-RAS models were developed according to different recurrence flow rates and, flood propagation maps and flood depth maps were generated. As a result of the model that was developed by using a 100-year flood recurrence flow rate, it was seen that 6.04 ha of the residential area and 33.73 ha of the agricultural area is submerged. The maximum water level was determined as 11.60 m according to the 100-year flood recurrence flow rate. Then, structural flood analysis was performed using the depth-damage graph for the Küçük Aksu River. As a result of this analysis, it was seen that the economic loss caused by floods was between 1.152 million-1.946 million TL.

Keywords

Flood risk analysis, Hec-RAS, structual flood analysis, Küçük Aksu River, GIS

Supporting Institution

Scientific Research Projects unit of Suleyman Demirel University

Project Number

4236-YL1-14

Thanks

This study was carried out within the scope of the project numbered 4236-YL1-14, which was supported by the Scientific Research Projects unit of Suleyman Demirel University, “Flood Risk Analysis with Geographic Information Systems Based Hydraulic Model and Multi-Criteria Decision-Making Analysis: Case of Small Aksu Stream”.

KÜÇÜK AKSU ÇAYI’NDA HIDROLIK MODELE DAYALI YAPISAL TAŞKIN ANALİZİ

Abstract

Bu çalışmada, Antalya ilinde bulunan Küçük Aksu Çayı’nda Hec-RAS ile taşkın riski olan alanlar belirlenmiştir. İlk olarak, farklı tekerrür debilerine göre Hec-RAS modelleri geliştirilmiş ve taşkın yayılım haritaları ile taşkın derinlik haritaları oluşturulmuştur. 100 yıllık taşkın tekerrür debisi kullanılarak geliştirilen model sonucunda 6,04 ha yerleşim alanı ile 33,73 ha tarım alanının su altında kaldığı görülmüştür. 100 yıllık taşkın tekerrür debisine karşılık gelen maksimum su yüksekliği 11,60 m olarak saptanmıştır. Daha sonra derinlik-hasar grafiği yardımıyla Küçük Aksu Çayı için yapısal taşkın analizi yapılmıştır. Yapılan analiz sonucunda taşkınların neden olduğu ekonomik kaybın 1.152 milyon-1.946 milyon TL arasında olduğu görülmüştür.

Keywords

Taşkın risk analizi, Hec-RAS, yapısal taşkın analizi, Küçük Aksu Çayı, CBS

Project Number

4236-YL1-14

References

• Anonymous, 2014. Aksu River. Retrieved in September, 09, 2019 http://tr.wikipedia.org/wiki/Aksu_%C3%87ay%C4%B1.
• Baykal, T., Terzi, Ö., 2017. Flood Frequency Analysis of Küçük Aksu River. Cumhuriyet Science Journal 38(4): 639-646.
• Beavers, M. A., 1994. Floodplain Determination Using HEC-2 and Geographic Information Systems. Master Thesis, The University of Texas, United States of America.
• Choo, K. S., kang, D. H., Kim, B. S., 2020. Impact Assessment of Urban Flood on Traffic Disruption Using Rainfall–Depth–Vehicle Speed Relationship. Water, 12(4): 926.
• Erena, S. H., Worku, H., De Paola, F., 2018. Flood Hazard Mapping Using Flo-2d and Local Management Strategies of Dire Dawa City, Ethiopia. Journal of Hydrology: Regional Studies, 19: 224-239.
• Horritt, M. S., Bates, P. D., 2002. Evaluation of 1D and 2D Numerical Models for Predicting River Flood Inundation. Journal of Hydrology 268: 87–99.
• Jonkman, S. N., Bočkarjova, M., Kok, M., Bernardini, P., 2008. Integrated hydrodynamic and economic modelling of flood damage in the Netherlands. Ecological economics 66(1): 77-90.
• Khalfallah, C. B., Saidi, S., 2018. Spatiotemporal Floodplain Mapping and Prediction Using HEC-RAS-GIS Tools: Case of the Mejerda River, Tunisia. Journal of African Earth Sciences,142:44-51.
• Khattak, M. S., Anwar, F., Saeed, T. U., Sharif, M., Sheraz., K., Ahmed, A. 2016. Floodplain Mapping Using Hec-RAS and ArcGIS: A Case Study of Kabul River. Arabian Journal for Science and Engineering 41(4): 1375-1390.
• Kılıçer, Ü., Özgüler, H., 2002. Flood Situation in Turkey. Turkey Engineering News Journal 420-421-422 4-5-6.
• Komolafe, A. A., 2021. Integrated Methodology for Urban Flood Inundation Modeling: A Case Study of Ichinomiya River Basin, Japan. Modeling Earth Systems and Environment, 1-10.
• Ministry of Interior Disaster and Emergency Management Presidency (AFAD), 2019. Turkey Disaster Knowledge Base. Retrieved in February, 09, 2019 https://tabb-analiz.afad.gov.tr/Genel/Sorgulama.aspx.
• Mu, D., Luo, P., Lyu, J., Zhou, M., Huo, A., Duan, W., Nover, D., He, B., Zhao, X., 2021. Impact of Temporal Rainfall Patterns on Flash Floods in Hue City, Vietnam. Journal of Flood Risk Management, 14(1): 12668.
• Nigussie, T. A., Altunkaynak, A.,2019. Modeling the effect of urbanization on flood risk in Ayamama Watershed, Istanbul, Turkey, using the MIKE 21 FM model. Natural Hazards, 99(2): 1031-1047.
• Onuşluel, G., Harmancıoğlu, N.B., 2002. Water Caused Natural Disaster: Flood. Turkey Engineering News 420­421­422 4­5­6.
• Özcan, O., 2008. Evaluation of Flood Risk Analysis in Sakarya River Sub Basin by Using Remote Sensing and GIS. Master Thesis, Istanbul Technical University, Turkey.
• Özmen, M. T., 2015. Floods in Turkey and Antalya. Kutlu and Avcı Bookstore, Antalya.
• Pistrika, A., 2010. Flood Damages Estimation based on Flood Simulation Scenarios and a GIS Platform. European Water 30: 3-11.
• Pistrika, A., Jonkman, S. N., 2009. Damage to residental buildings due to flooding of New Orleans after Hurricane Katrina. Natural Hazards 54(2): 413-434.
• Prafulkumar, V., Timbadiya, P. V., Paterl, P. L., Porey, P. D., 2011. Calibration of HEC-RAS Model on Prediction of Flood for Lower Tapi River, India. Journal of Water Resource and Protection 3: 805-811.
• Republic of Turkey Ministry of Environment and Urbanisation (MEU), 2020. Year 2020 to be Used in Calculation of Architecture and Engineering Services Unit Cost Structure Around About Communication. Official Gazette No. 31064, dated 10.03.2021.
• Republic of Turkey Ministry of Treasury and Finance (MTF), 1982. Regulation on the Amendment of Some Articles of the Regulation Regarding the Appreciation of Tax Values to be Base on Real Estate Tax and Adding an Additional Article to this Regulation. Official Gazette No. 17886, dated 02.12.1982.
• Romali, N. S., Yusop, Z., Ismail, A. Z., 2018. Application of Hec-RAS and ArcGIS for Floodplain Mapping in Segamat Town, Malaysia. International Journal 14(43): 125-131.
• Shirzad, M. R., 2017. Flood risk evaluation with remote sensing and GIS technologies, case study: Kocaeli Maden valley. Master Thesis, Kocaeli University, Turkey.
• Shrestha, A., Bhattacharjee, L., Baral, S., Thakur, B., Joshi, N., Kalra, A., Gupta, R. 2020. Understanding suitability of MIKE 21 and HEC-RAS for 2D floodplain modeling. In World Environmental and Water Resources Congress 2020: Hydraulics, Waterways, and Water Distribution Systems Analysis (pp. 237-253). Reston, VA: American Society of Civil Engineers.
• Smith, D. I., 1996. Flood damage estimation- A review of urban stage-damage curves and function. Water SA 20(3): 231-238.
• Sönmez, O., Demir, F., 2017. Determination of flood inundation maps and water levels of buildings in Ağva district centre. Sakarya University Journal of Science 21(2): 105-112.
• Taş, E., İçağa, Y., Zorluer, İ., 2016. Constitution of Flood Inundation Maps and Flood Damage Analysis: A Case Study of Akarçay Afyon Subbasin. Afyon Kocatepe University Journal of Science and Engineering 16: 711-721.
• Tazın, T., 2018. Flood Hazard Mapping of Dharla River Floodplain Using Hec-RAS 1D/2D Coupled Model. Master Thesis, Bangladesh University, Bangladesh.
• Uçar, İ., 2010. Flood analysis of Trabzon Değirmendere basin using geographic information systems and a hydraulic model. Master Thesis, Gazi University, Turkey.
• Usul, N., 2008. Preparation of Flood Risk Maps Using Geographical Information Systems Techniques. In: Proceedings of Flood Conference, 19-20 June, Edirne, pp 97-109.