A geospatial assessment of flood hazard in north‐eastern depressed basin, Bangladesh
Bibliographic Data
| ID | 20153259 |
|---|---|
| Authors | Mohammad Abdul Quader (0000-0002-8176-3856, Department of Geography and Environment Jagannath University Dhaka Bangladesh, corresponding author), Hemal Dey (0000-0002-7227-9579, Department of Geography and Environment Jagannath University Dhaka Bangladesh), Abdul Malak (Department of Geography and Environment Jagannath University Dhaka Bangladesh), Zakiur Rahman (0000-0002-8208-6164, Department of Geography and Environmental Science Begum Rokeya University Rangpur Bangladesh) |
| Year | 2023 |
| Volume | 44 |
| Issue | 2 |
| Pages | 277-299 |
| Publication date | 2023-05-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Singapore Journal of Tropical Geography (JOURNAL) |
| Journal identifiers | ISSN: 0129-7619 • E-ISSN: 1467-9493 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1111/sjtg.12476 |
| OpenAlex | W4320729940 |
| Language | EN |
| Citations received | 3 |
| References cited | 53 |
Floods are a frequently occurring calamity in deltaic Bangladesh. This paper aims to assess the temporal expansion of waterbodies during flooding using geospatial techniques. Several water indices were applied to classify the satellite images at various temporal scales. Among them, the Normalized Difference Water Index (NDWI) showed the highest correlation ( r = 0.831; where p = 0.01) with rainfall data. Specifically, the NDWI results showed that perennial waterbodies measured 37 km 2 and 60 km 2 in Sunamganj District in 2017 and 2019, respectively. The area of waterbodies notably increased 52‐fold from March to April (37 km 2 to 1958 km 2 ) during the pre‐monsoon flash flood of 2017. During the July 2019 monsoon flood, waterbodies started to extend after May and flooded 2784 km 2 in area. NDVI analysis showed that in 2019, floodwater submerged 361.7 km 2 of vegetation cover. At the same time, the Surma River's flooding resulted in a 73.9 per cent inundation of the total area of the Sunamganj District. We hope that this study will provide better understanding of the varying nature of floods that occur in the low lying bowl shaped Haor region which will in turn assist the government with flood mitigation
Cartography · Climate change · Flash flood · Flood myth · Flooding (psychology) · Geography · Geomorphology · Geospatial analysis · Hydrology (agriculture) · Meteorology · Monsoon · Normalized Difference Vegetation Index · Physical geography · Structural basin · Environmental Science · Flood Risk Assessment and Management · Geology · Groundwater and Watershed Analysis · Oceanography · Tropical and Extratropical Cyclones Research
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Digital terrain modelling
Rohingya refugee flooding and changes of the physical and social landscape in Ukhiya, Bangladesh
Global warming and changes in the probability of occurrence of floods in Bangladesh and implications
Impacts of climate change and sea-level rise on cyclonic storm surge floods in Bangladesh
Effect of Flood on Agricultural Wages in Bangladesh
The effects of changing land use and flood hazard on poverty in coastal Bangladesh
Tipping points in adaptation to urban flooding under climate change and urban growth
| Unique citing works | 3 |
|---|---|
| Citations per year | 1,5 |
| Citation span | 2024 - 2026 (3) |
| Citation velocity | current |
| Highly cited | No |
| Citation types | Neutral: 3 |