نویسندگان | Himan Shahabi, Ataollah Shirzadi, Keyvan Ghaderi, Ebrahim Omidvar, Al-Ansari, John J. Clague, Marten Geertsema, et al |
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نشریه | Remote Sensing |
شماره صفحات | 1 |
شماره مجلد | 12 |
ضریب تاثیر (IF) | 4.118 |
نوع مقاله | Full Paper |
تاریخ انتشار | 2020-01-13 |
رتبه نشریه | ISI |
نوع نشریه | الکترونیکی |
کشور محل چاپ | سوئیس |
نمایه نشریه | SCOPUS ,JCR |
چکیده مقاله
Mapping flood-prone areas is a key activity in flood disaster management. In this paper, we propose a new flood susceptibility mapping technique. We employ new ensemble models based on bagging as a meta-classifier and K-Nearest Neighbor (KNN) coarse, cosine, cubic, and weighted base classifiers to spatially forecast flooding in the Haraz watershed in northern Iran. We identified flood-prone areas using data from Sentinel-1 sensor. We then selected 10 conditioning factors to spatially predict floods and assess their predictive power using the Relief Attribute Evaluation (RFAE) method. Model validation was performed using two statistical error indices and the area under the curve (AUC). Our results show that the Bagging–Cubic–KNN ensemble model outperformed other ensemble models. It decreased the overfitting and variance problems in the training dataset and enhanced the prediction accuracy of the Cubic–KNN model (AUC=0.660). We therefore recommend that the Bagging–Cubic–KNN model be more widely applied for the sustainable management of flood-prone areas.
tags: flood; machine learning; remote sensing data; goodness-of-fit; overfitting; Haraz; Iran