Affiliation:
1. National Institute of Technology Karnataka
2. National Centre for Earth Science Studies
Abstract
Abstract
The intensity and frequency of extreme events have increased significantly in the past few years due to climate change, leading to more severe and devastating floods worldwide. In India, Kerala state has witnessed the most catastrophic floods of the century in the past five years. Thus, accurate flood susceptibility models are required for effective risk assessment and disaster management. In the present study, Machine Learning-based flood susceptibility models are developed for one of the severely affected districts, Kottayam, in the foothills of the Southern Western Ghats of Kerala state in India. The performance of SVM, tree-based XGBOOST, and Deep-Learning CNN models have been evaluated in flood susceptibility modelling. The performance of candidate models is evaluated using the Area Under the Curve of the Receiver Operating Characteristic curve (AUC-ROC). The models are validated using Overall accuracy, Precision, Recall, Specificity, and F1- score. CNN model outperformed SVM and XGBOOST. The AUC - ROC for SVM, XGBOOST, and CNN is 0.96, 0.97, and 0.99, respectively. The flood susceptibility model developed in the present study will be helpful in better disaster preparedness and the development of tailored flood mitigation plans, which would eventually reduce the impact of floods in the coming years.
Publisher
Research Square Platform LLC
Reference95 articles.
1. Flash-flood susceptibility mapping based on XGBoost, random forest and boosted regression trees;Abedi Rahebeh;Geocarto International,2022
2. Mapping flood susceptibility in an arid region of southern Iraq using ensemble machine learning classifiers: a comparative study;Al-Abadi Alaa M;Arabian Journal of Geosciences,2018
3. Albawi, Saad, Tareq Abed Mohammed, and Saad Al-Zawi.(2017) Understanding of a convolutional neural network." 2017 international conference on engineering and technology (ICET). Ieee.
4. The use of “overall accuracy” to evaluate the validity of screening or diagnostic tests;Alberg Anthony J;Journal of general internal medicine,2004
5. Review of deep learning: Concepts, CNN architectures, challenges, applications, future directions;Alzubaidi Laith;Journal of big Data,2021