HEC-RAS 2D modeling for flood inundation mapping: a case study of the Krishna River Basin
Floods are catastrophic natural disasters that cause a substantial toll on human lives, infrastructure, and the economy. Structural and non-structural measures are developed for planning flood mitigation strategies. Flood inundation mapping is valuable information for decision-makers and authorities...
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-04-01
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| Series: | Water Practice and Technology |
| Subjects: | |
| Online Access: | http://wpt.iwaponline.com/content/18/4/831 |
| _version_ | 1797830395124776960 |
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| author | Komal Vashist K. K. Singh |
| author_facet | Komal Vashist K. K. Singh |
| author_sort | Komal Vashist |
| collection | DOAJ |
| description | Floods are catastrophic natural disasters that cause a substantial toll on human lives, infrastructure, and the economy. Structural and non-structural measures are developed for planning flood mitigation strategies. Flood inundation mapping is valuable information for decision-makers and authorities to develop flood mitigation strategies and resource allocation. This study uses the HEC-RAS 2D model for flood inundation mapping in the Krishna River Basin. Digital elevation models (DEMs) of 12.5 and 30 m resolutions were used to model the inundation map. The study also investigated the effect of change in upstream boundary data on the inundated area. The simulated results with 12.5 m resolution DEM are found in good agreement with the validation data and conform to the inundated areas with the available reports. This study proves the 2D capabilities of HEC-RAS and helps the experts with better management practices.
HIGHLIGHTS
Flood inundation mapping was performed on the Krishna River Basin using the HEC-RAS 2D model.;
Digital elevation models (DEMs) of 12.5 m resolution and 30 m resolution were incorporated to perform the inundation mapping.;
The study investigated the influence of varying the upstream boundary data on the inundated area.;
The simulated results with 12.5 m resolution DEM give a good agreement with the data available for the validation.; |
| first_indexed | 2024-04-09T13:35:59Z |
| format | Article |
| id | doaj.art-4f9a662971c3489e9f5359c390116f63 |
| institution | Directory Open Access Journal |
| issn | 1751-231X |
| language | English |
| last_indexed | 2024-04-09T13:35:59Z |
| publishDate | 2023-04-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Practice and Technology |
| spelling | doaj.art-4f9a662971c3489e9f5359c390116f632023-05-09T09:58:27ZengIWA PublishingWater Practice and Technology1751-231X2023-04-0118483184410.2166/wpt.2023.048048HEC-RAS 2D modeling for flood inundation mapping: a case study of the Krishna River BasinKomal Vashist0K. K. Singh1 Department of Civil Engineering, NIT Kurukshetra, Kurukshetra, Haryana, India Department of Civil Engineering, NIT Kurukshetra, Kurukshetra, Haryana, India Floods are catastrophic natural disasters that cause a substantial toll on human lives, infrastructure, and the economy. Structural and non-structural measures are developed for planning flood mitigation strategies. Flood inundation mapping is valuable information for decision-makers and authorities to develop flood mitigation strategies and resource allocation. This study uses the HEC-RAS 2D model for flood inundation mapping in the Krishna River Basin. Digital elevation models (DEMs) of 12.5 and 30 m resolutions were used to model the inundation map. The study also investigated the effect of change in upstream boundary data on the inundated area. The simulated results with 12.5 m resolution DEM are found in good agreement with the validation data and conform to the inundated areas with the available reports. This study proves the 2D capabilities of HEC-RAS and helps the experts with better management practices. HIGHLIGHTS Flood inundation mapping was performed on the Krishna River Basin using the HEC-RAS 2D model.; Digital elevation models (DEMs) of 12.5 m resolution and 30 m resolution were incorporated to perform the inundation mapping.; The study investigated the influence of varying the upstream boundary data on the inundated area.; The simulated results with 12.5 m resolution DEM give a good agreement with the data available for the validation.;http://wpt.iwaponline.com/content/18/4/831digital elevation modelfloodhec-ras 2dinundation mapping |
| spellingShingle | Komal Vashist K. K. Singh HEC-RAS 2D modeling for flood inundation mapping: a case study of the Krishna River Basin Water Practice and Technology digital elevation model flood hec-ras 2d inundation mapping |
| title | HEC-RAS 2D modeling for flood inundation mapping: a case study of the Krishna River Basin |
| title_full | HEC-RAS 2D modeling for flood inundation mapping: a case study of the Krishna River Basin |
| title_fullStr | HEC-RAS 2D modeling for flood inundation mapping: a case study of the Krishna River Basin |
| title_full_unstemmed | HEC-RAS 2D modeling for flood inundation mapping: a case study of the Krishna River Basin |
| title_short | HEC-RAS 2D modeling for flood inundation mapping: a case study of the Krishna River Basin |
| title_sort | hec ras 2d modeling for flood inundation mapping a case study of the krishna river basin |
| topic | digital elevation model flood hec-ras 2d inundation mapping |
| url | http://wpt.iwaponline.com/content/18/4/831 |
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