Artificial neural network for flood susceptibility mapping in Bangladesh

The objective of the research is to investigate flood susceptibility in the Sylhet division of Bangladesh. Eight influential factors (i.e., elevation, slope, aspect, curvature, TWI, SPI, roughness, and LULC) were applied as inputs to the model. In this work, 1280 samples were taken at different loca...

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Main Authors: Rhyme Rubayet Rudra, Showmitra Kumar Sarkar
Format: Article
Language:English
Published: Elsevier 2023-06-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844023036666
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author Rhyme Rubayet Rudra
Showmitra Kumar Sarkar
author_facet Rhyme Rubayet Rudra
Showmitra Kumar Sarkar
author_sort Rhyme Rubayet Rudra
collection DOAJ
description The objective of the research is to investigate flood susceptibility in the Sylhet division of Bangladesh. Eight influential factors (i.e., elevation, slope, aspect, curvature, TWI, SPI, roughness, and LULC) were applied as inputs to the model. In this work, 1280 samples were taken at different locations based on flood and non-flood characteristics; of these, 75% of the inventory dataset was used for training and 25% for testing. An artificial neural network was applied to develop a flood susceptibility model, and the results were plotted on a map using ArcGIS. According to the finding, 40.98% (i.e., 499433.50 hectors) of the study area is found within the very high-susceptibility zone, and 37.43% (i.e., 456168.76 hectors) are in the highly susceptible zone. Only 6.52% and 15% of the area were found in low and medium flood susceptibility zones, respectively. The results of model validation show that the overall prediction rate is around 89% and the overall model success rate is around 98%. The study's findings assist policymakers and concerned authorities in making flood risk management decisions in order to mitigate the negative impacts.
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spelling doaj.art-c6132e9968094cd8a69867c2e9dc48892023-05-26T04:21:49ZengElsevierHeliyon2405-84402023-06-0196e16459Artificial neural network for flood susceptibility mapping in BangladeshRhyme Rubayet Rudra0Showmitra Kumar Sarkar1Department of Urban and Regional Planning, Khulna University of Engineering & Technology (KUET), Khulna, 9203, BangladeshCorresponding author.; Department of Urban and Regional Planning, Khulna University of Engineering & Technology (KUET), Khulna, 9203, BangladeshThe objective of the research is to investigate flood susceptibility in the Sylhet division of Bangladesh. Eight influential factors (i.e., elevation, slope, aspect, curvature, TWI, SPI, roughness, and LULC) were applied as inputs to the model. In this work, 1280 samples were taken at different locations based on flood and non-flood characteristics; of these, 75% of the inventory dataset was used for training and 25% for testing. An artificial neural network was applied to develop a flood susceptibility model, and the results were plotted on a map using ArcGIS. According to the finding, 40.98% (i.e., 499433.50 hectors) of the study area is found within the very high-susceptibility zone, and 37.43% (i.e., 456168.76 hectors) are in the highly susceptible zone. Only 6.52% and 15% of the area were found in low and medium flood susceptibility zones, respectively. The results of model validation show that the overall prediction rate is around 89% and the overall model success rate is around 98%. The study's findings assist policymakers and concerned authorities in making flood risk management decisions in order to mitigate the negative impacts.http://www.sciencedirect.com/science/article/pii/S2405844023036666FloodMachine learningGeographic information systemRemote sensingBangladesh
spellingShingle Rhyme Rubayet Rudra
Showmitra Kumar Sarkar
Artificial neural network for flood susceptibility mapping in Bangladesh
Heliyon
Flood
Machine learning
Geographic information system
Remote sensing
Bangladesh
title Artificial neural network for flood susceptibility mapping in Bangladesh
title_full Artificial neural network for flood susceptibility mapping in Bangladesh
title_fullStr Artificial neural network for flood susceptibility mapping in Bangladesh
title_full_unstemmed Artificial neural network for flood susceptibility mapping in Bangladesh
title_short Artificial neural network for flood susceptibility mapping in Bangladesh
title_sort artificial neural network for flood susceptibility mapping in bangladesh
topic Flood
Machine learning
Geographic information system
Remote sensing
Bangladesh
url http://www.sciencedirect.com/science/article/pii/S2405844023036666
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AT showmitrakumarsarkar artificialneuralnetworkforfloodsusceptibilitymappinginbangladesh