Generating the Flood Susceptibility Map for Istanbul with GIS-Based Machine Learning Algorithms
Journal: Dogal Afetler ve Cevre Dergisi (Vol.10, No. 1)Publication Date: 2024-01-31
Authors : Zehra KOYUNCU; Ömer EKMEKCİOĞLU;
Page : 1-15
Keywords : Geographical Information Systems; Istanbul; Machine Learning; Risk Management; Flood Hazard Mapping; Remote Sensing;
Abstract
The main objective of the current study is to generate a flood hazard map by using the machine learning algorithms hybridized with the geographic information systems (GIS). In this regard, the province of Istanbul, which is the metropolitan city of Turkey, was selected as the focal region within the scope of the study. The class imbalance was tackled through the commonly used random under sampling (RUS) technique in order to create a fair comparison datum line. It is worth mentioning that this is the first time this approach has been used for flood hazard mapping studies in Turkey. Random forest (RF), stochastic gradient boosting (SGB), and XGBoost algorithms were used. The best predictive performance was obtained with the XGBoost algorithm, followed by SGB and RF, respectively. The RF and SGB models showed a 90.67% success rate in determining the inundation points, while the XGBoost model outperformed its counterparts with a 92.00% success rate in determining the inundation points. In this research, the importance levels of the flood triggering variables were further investigated in order to enliven the comprehensibility of the obtained results. Thus, the most important variable was the precipitation, followed by the distance to the drainage network and the number of curves, respectively. Finally, it is suggested that flood vulnerability mapping attempts can be considered as promising approaches against increasing flood incidents over the years.
Other Latest Articles
- Triglyceride-Glucose Index as A Crucial Marker for Polycystic Ovary Syndrome Women with Insulin Resistance
- The Increase in CD14+CD16+ Monocytes is Correlated with Cardiovascular Disease Risk Marker in Type 2 Diabetes
- Increased Levels of TNF-α, IL-6, and IL-10 are Associated with The Degree of Liver Fibrosis in Chronic Hepatitis B Patients with NUC Therapy
- Andrographis paniculata Leaves Extract Inhibit TNF-α and Caspase-3 Expression of Septic Rats’ Intestinal Tissues
- Diosmin Enhances the Anti-migration Activity of Curcumin Analog PGV-1 on Colorectal Cancer Cells
Last modified: 2024-02-29 17:48:59