Building ANN-based regional multi-step-ahead flood inundation forecast models
學年 107
學期 1
出版（發表）日期 2018-09-19
作品名稱 Building ANN-based regional multi-step-ahead flood inundation forecast models
作品名稱（其他語言）
著者 Li-Chiu Chang; Mohd Zaki M. Amin; Shun-Nien Yang; Fi-John Chang
單位
出版者
著錄名稱、卷期、頁數 Water 10(9), 1283
摘要 A regional inundation early warning system is crucial to alleviating flood risks and reducing loss of life and property. This study aims to provide real-time multi-step-ahead forecasting of flood inundation maps during storm events for flood early warnings in inundation-prone regions. For decades, the Kemaman River Basin, located on the east coast of the West Malaysia Peninsular, has suffered from monsoon floods that have caused serious damage. The downstream region with an area of approximately 100 km2 located on the east side of this basin is selected as the study area. We explore and implement a hybrid ANN-based regional flood inundation forecast system in the study area. The system combines two popular artificial neural networks—the self-organizing map (SOM) and the recurrent nonlinear autoregressive with exogenous inputs (RNARX)—to sequentially produce regional flood inundation maps during storm events. The results show that: (1) the 4 × 4 SOM network can effectively cluster regional inundation depths; (2) RNARX networks can accurately forecast the long-term (3–12 h) regional average inundation depths; and (3) the hybrid models can produce adequate real-time regional flood inundation maps. The proposed ANN-based model was shown to very quickly carry out multi-step-ahead forecasting of area-wide inundation depths with sufficient lead time (up to 12 h) and can visualize the forecasted results on Google Earth using user devices to help decision makers and residents take precautionary measures against flooding. View Full-Text
關鍵字
語言 en_US
ISSN 2073-4441
期刊性質 國外
收錄於 SCI EI
產學合作 國外
通訊作者
審稿制度 是
國別 CHE
公開徵稿
出版型式 ,電子版,紙本
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/116055 )