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EN
Determining the Overflow of Kalecik Basin Using Fuzzy SMRGT Method
Abstract
Floods have always been an important issue and have caused great losses of life and property in human history with their hydrological and hydraulic aspects. Excessive urbanization, increases flows into a basin or region, in other words, increase the flow coefficient. Also, the reduction in stream sections by converting streambeds into habitats causes an increase in human-induced floods. Additionally, when the effects of global climate change, the increased extreme meteorological events (i.e. heavy rains), and the temporal and spatial changes of these extreme events are considered, the flood risk is increasing for almost every region and basin. Measures must be taken to prevent flood, which is a natural event, from turning into a disaster. To take precautions, floods must be predicted in advance as accurately as possible. Since some natural events such as earthquakes are difficult to predict, it is also difficult to prevent them from turning into disasters. However, floods are relatively easy to predict. The literature on this subject is quite old. On the other hand, the methods proposed in the current literature are either classical methods of old technology and have low predictive power, or they are black-box methods that do not rely on a physics cause-effect relationship, and for this reason, do not give enough confidence. Relatively better ones also have some disadvantages as well as advantages. In the present study, a fuzzy model has been developed to estimate the flow rate. To construct the membership functions and to generate the fuzzy rules of the model the SMRGT method, which novel in literature, have been used. On the other hand, the main advantage of SMRGT makes estimation with physical cause - effect relationship (not only based on the data at hand). As results, the flow coefficient has been determined particularly for Kalecik Basin as an application. Furthermore, a flood risk map obtained for the same Basin. It can be concluded that the fuzzy SMRGT can be used for this aim and it gives more precious and realistic results compared with the conventional methods.
Keywords
References
- [1] O. Ozcan, “Evaluation of flood risk analysis in the Sakarya river subbasin by using remote sensing and GIS,” M.S. thesis, Technical Univ. of Istanbul, 2008.
- [2] Z. Toprak, M. Savci, and C. Avci, “Comparison of the dispersion model results using the contour map method,” in Proc. 6th Int. Congr. Advances in Civil Engineering (ACE2004), 2004, pp. 1407–1417.
- [3] T. Cosgun, İ. B. Peker, B. Sayin, S. Gülbaz, and R. Durgut, “Assessment of flood event based on numerical models and legal statute: A case of Eşkinoz Stream in Istanbul, Turkey,” Arab. J. Geosci., vol. 15, no. 7, p. 585, 2022.
- [4] H. Akay and M. Baduna Koçyiğit, “Comparison of Direct Runoff Hydrographs of Two Ungauged Sub-Basins Using Instantaneous Unit Hydrograph Approach,” J. Nat. Hazards Environ., vol. 5, no. 2, pp. 1–8, 2019.
- [5] G. Berz, “Flood disasters: lessons from the past—worries for the future,” Proc. Inst. Civ. Eng. Water Marit. Eng., vol. 142, no. 1, pp. 3–8, 2000.
- [6] A. Ü. Kömüşçü, S. Çelik, and A. Ceylan, “Rainfall analysis of the flood event that occurred in Marmara Region on 8–12 September 2009,” Turk. J. Geogr. Sci., vol. 9, no. 2, pp. 209–220, 2011.
- [7] M. Sunkar and A. Toprak, “Importance of historical data sources in flood and overflow studies,” in Proc. Int. Geogr. Symp., Ankara, Turkey, Oct. 2016.
- [8] M. A. Trigg et al., “The credibility challenge for global fluvial flood risk analysis,” Environ. Res. Lett., vol. 11, no. 9, p. 094014, 2016.
Details
Primary Language
English
Subjects
Civil Engineering (Other)
Journal Section
Research Article
Early Pub Date
June 30, 2025
Publication Date
June 30, 2025
Submission Date
October 31, 2024
Acceptance Date
May 23, 2025
Published in Issue
Year 2025 Volume: 16 Number: 2
IEEE
[1]F. Şevgin, Z. F. Toprak, and İ. Dölek, “Determining the Overflow of Kalecik Basin Using Fuzzy SMRGT Method”, DUJE, vol. 16, no. 2, pp. 461–470, June 2025, doi: 10.24012/dumf.1576837.
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https://doi.org/10.24012/dumf.1850431