Enhancing precision flood mapping: Pahang's vulnerability unveiled.
Malaysia, particularly Pahang, experiences devastating floods annually, causing significant damage. The objective of the research was to create a flood susceptibility map for the designated area by employing an Ensemble Machine Learning (EML) algorithm based on geographic information system (GIS). B...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2024-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0310435 |
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| author | Tahmina Afrose Keya Siventhiran S Balakrishnan Maheswaran Solayappan Saravana Selvan Dheena Dhayalan Sreeramanan Subramaniam Low Jun An Anthony Leela Kevin Fernandez Prahan Kumar A Lokeshmaran Abhijit Vinodrao Boratne Mohd Tajuddin Abdullah |
| author_facet | Tahmina Afrose Keya Siventhiran S Balakrishnan Maheswaran Solayappan Saravana Selvan Dheena Dhayalan Sreeramanan Subramaniam Low Jun An Anthony Leela Kevin Fernandez Prahan Kumar A Lokeshmaran Abhijit Vinodrao Boratne Mohd Tajuddin Abdullah |
| author_sort | Tahmina Afrose Keya |
| collection | DOAJ |
| description | Malaysia, particularly Pahang, experiences devastating floods annually, causing significant damage. The objective of the research was to create a flood susceptibility map for the designated area by employing an Ensemble Machine Learning (EML) algorithm based on geographic information system (GIS). By analyzing nine key factors from a geospatial database, flood susceptibility map was created with the ArcGIS software (ESRI ArcGIS Pro v3.0.1 x64). The Random Forest (RF) model was employed in this study to categorize the study area into distinct flood susceptibility classes. The Feature selection (FS) method was used to ranking the flood influencing factors. To validate the flood susceptibility models, standard statistical measures and the Area Under the Curve (AUC) were employed. The FS ranking demonstrated that the primary attributes to flooding in the study region are rainfall and elevation, with slope, geology, curvature, flow accumulation, flow direction, distance from the river, and land use/land cover (LULC) patterns ranking subsequently. The categories of 'very high' and 'high' class collectively made up 37.1% and 26.3% of the total area, respectively. The flood vulnerability assessment of Pahang found that the Eastern, Southern, and central regions were at high risk of flooding due to intense precipitation, low-lying topography with steep inclines, proximity to the shoreline and rivers, and abundant flooded vegetation, crops, urban areas, bare ground, and rangeland. Conversely, areas with dense tree canopies or forests were less susceptible to flooding in this research area. The ROC analysis demonstrated strong performance on the validation datasets, with an AUC value of >0.73 and accuracy scores exceeding 0.71. Research on flood susceptibility mapping can enhance risk reduction strategies and improve flood management in vulnerable areas. Technological advancements and expertise provide opportunities for more sophisticated methods, leading to better prepared and resilient communities. |
| format | Article |
| id | doaj-art-7235fd6387064342a1fbf67b0232ccb4 |
| institution | DOAJ |
| issn | 1932-6203 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-7235fd6387064342a1fbf67b0232ccb42025-08-20T02:58:11ZengPublic Library of Science (PLoS)PLoS ONE1932-62032024-01-011911e031043510.1371/journal.pone.0310435Enhancing precision flood mapping: Pahang's vulnerability unveiled.Tahmina Afrose KeyaSiventhiran S BalakrishnanMaheswaran SolayappanSaravana Selvan Dheena DhayalanSreeramanan SubramaniamLow Jun AnAnthony LeelaKevin FernandezPrahan KumarA LokeshmaranAbhijit Vinodrao BoratneMohd Tajuddin AbdullahMalaysia, particularly Pahang, experiences devastating floods annually, causing significant damage. The objective of the research was to create a flood susceptibility map for the designated area by employing an Ensemble Machine Learning (EML) algorithm based on geographic information system (GIS). By analyzing nine key factors from a geospatial database, flood susceptibility map was created with the ArcGIS software (ESRI ArcGIS Pro v3.0.1 x64). The Random Forest (RF) model was employed in this study to categorize the study area into distinct flood susceptibility classes. The Feature selection (FS) method was used to ranking the flood influencing factors. To validate the flood susceptibility models, standard statistical measures and the Area Under the Curve (AUC) were employed. The FS ranking demonstrated that the primary attributes to flooding in the study region are rainfall and elevation, with slope, geology, curvature, flow accumulation, flow direction, distance from the river, and land use/land cover (LULC) patterns ranking subsequently. The categories of 'very high' and 'high' class collectively made up 37.1% and 26.3% of the total area, respectively. The flood vulnerability assessment of Pahang found that the Eastern, Southern, and central regions were at high risk of flooding due to intense precipitation, low-lying topography with steep inclines, proximity to the shoreline and rivers, and abundant flooded vegetation, crops, urban areas, bare ground, and rangeland. Conversely, areas with dense tree canopies or forests were less susceptible to flooding in this research area. The ROC analysis demonstrated strong performance on the validation datasets, with an AUC value of >0.73 and accuracy scores exceeding 0.71. Research on flood susceptibility mapping can enhance risk reduction strategies and improve flood management in vulnerable areas. Technological advancements and expertise provide opportunities for more sophisticated methods, leading to better prepared and resilient communities.https://doi.org/10.1371/journal.pone.0310435 |
| spellingShingle | Tahmina Afrose Keya Siventhiran S Balakrishnan Maheswaran Solayappan Saravana Selvan Dheena Dhayalan Sreeramanan Subramaniam Low Jun An Anthony Leela Kevin Fernandez Prahan Kumar A Lokeshmaran Abhijit Vinodrao Boratne Mohd Tajuddin Abdullah Enhancing precision flood mapping: Pahang's vulnerability unveiled. PLoS ONE |
| title | Enhancing precision flood mapping: Pahang's vulnerability unveiled. |
| title_full | Enhancing precision flood mapping: Pahang's vulnerability unveiled. |
| title_fullStr | Enhancing precision flood mapping: Pahang's vulnerability unveiled. |
| title_full_unstemmed | Enhancing precision flood mapping: Pahang's vulnerability unveiled. |
| title_short | Enhancing precision flood mapping: Pahang's vulnerability unveiled. |
| title_sort | enhancing precision flood mapping pahang s vulnerability unveiled |
| url | https://doi.org/10.1371/journal.pone.0310435 |
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