Affiliation:
1. Laboratory of Engineering Geology and Hydrogeology, Department of Geological Sciences, School of Mining and Metallurgical Engineering, National Technical University of Athens, Zographou Campus, 15773 Athens, Greece
2. Hellenic Centre for Marine Research, Institute of Marine Biological Resources and Inland Waters, 19013 Athens, Greece
3. College of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, China
4. Department of Geography and Regional Research, University of Vienna, 1010 Vienna, Austria
Abstract
The main scope of the study is to evaluate the prognostic accuracy of a one-dimensional convolutional neural network model (1D-CNN), in flood susceptibility assessment, in a selected test site on the island of Euboea, Greece. Logistic regression (LR), Naïve Bayes (NB), gradient boosting (GB), and a deep learning neural network (DLNN) model are the benchmark models used to compare their performance with that of a 1D-CNN model. Remote sensing (RS) techniques are used to collect the necessary flood related data, whereas thirteen flash-flood-related variables were used as predictive variables, such as elevation, slope, plan curvature, profile curvature, topographic wetness index, lithology, silt content, sand content, clay content, distance to faults, and distance to river network. The Weight of Evidence method was applied to calculate the correlation among the flood-related variables and to assign a weight value to each variable class. Regression analysis and multi-collinearity analysis were used to assess collinearity among the flood-related variables, whereas the Shapley Additive explanations method was used to rank the features by importance. The evaluation process involved estimating the predictive ability of all models via classification accuracy, sensitivity, specificity, and area under the success and predictive rate curves (AUC). The outcomes of the analysis confirmed that the 1D-CNN provided a higher accuracy (0.924), followed by LR (0.904) and DLNN (0.899). Overall, 1D-CNNs can be useful tools for analyzing flood susceptibility using remote sensing data, with high accuracy predictions.
Subject
General Earth and Planetary Sciences
Reference91 articles.
1. CRED (2023). 2022 Disasters in Numbers, CRED. Available online: https://cred.be/sites/default/files/2022_EMDAT_report.pdf.
2. Diakakis, M. (2012). Flood Hazard Assessment with the Use of Modeling Techniques, National and Kapodistrian University of Athens.
3. Flash Flood Susceptibility Mapping Using Stacking Ensemble Machine Learning Models;Ilia;Geocarto Int.,2022
4. Hoque, M., Tasfia, S., Ahmed, N., and Pradhan, B. (2019). Assessing Spatial Flood Vulnerability at KalaparaUpazila in Bangladesh Using an Analytic Hierarchy Process. Sensors, 19.
5. Development of novel hybridized models for urban flood susceptibility mapping;Rahmati;Sci. Rep.,2020