Uncertainties of Flash Flood in Context of Climate Change in Sunamganj District, Bangladesh

Bhattacharjee, Shubhra

doi:10.1061/41173(414)475

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…Two primary reasons were found to be behind frequent flooding in the Sunamganj District and especially in Haor areas. First, excessive rainfall in Sunamganj District and the upper hill catchment of Meghalaya raises the water level of the Surma River (Figure 9) which then overflows the riverbank (Bhattacharjee, 2011). Secondly, this is exacerbated by the bowl‐shaped low topography of the Haor region.…”

Section: Discussionmentioning

confidence: 99%

“…Due to flooding, which is increasing due to global environmental changes, primary livelihood activities of this area are becoming increasingly vulnerable and this has attracted some research and policy attention (Rahman, 2018). Global climate change, in particular, rainfall variation in upstream Meghalaya region of India, is increasing the frequency of premonsoon flash floods as well as monsoon floods (Bhattacharjee, 2011). This is threatening the livelihood security of the north-eastern Haor residents (Rahman, 2018).…”

Section: Discussionmentioning

confidence: 99%

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A geospatial assessment of flood hazard in north‐eastern depressed basin, Bangladesh

Quader

Dey

Malak

et al. 2023

Singap J Trop Geogr

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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 premonsoon 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.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

A geospatial assessment of flood hazard in north‐eastern depressed basin, Bangladesh

Quader

Dey

Malak

et al. 2023

Singap J Trop Geogr

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“…Now a days, flood hits mostly in the middle of April. Bhattacharjee, 2011 andSumiya et al, 2019 Flash flood frequently poses severe threat, particularly for indigent households in Bangladesh. Occupation and income of the poor are the two most crucial sectors on which flood have significant impacts (Table 4).…”

Section: Recurrent Flood Eventsmentioning

confidence: 99%

Impacts of Flash Flood on Livelihood and Adaptation Strategies of the Haor Inhabitants: A Study in Tanguar Haor of Sunamganj, Bangladesh

Abedin

Khatun

2020

Dhaka Univ J Earth Env Sci

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The study evaluates the impacts of flash flood (especially 2017 massive flash flood) and explores prevailing adaptation strategies taken by haor inhabitants to subdue the impact. Primary data were collected through field visit, questionnaire survey, FGD and KII. A purposive random sampling method was applied for selecting 350 households from 10villages located in and around Tanguar Haor. The inhabitants of low-lying haor areas are extremely vulnerable to flash flood. Their coping mechanism has been strictly curved by a number of social, economic, and political factors, leading to vicious circle of debt and poverty to mohajon (money lender) and micro credit institution, perennial marginalization from haor resources by influential groups and subsequent dependency on wealthy neighbors or relatives. The haor indigent community lives with flood, suffers a loss of income and living, confronts it with food shortage and malnutrition, and survives with the circumstances by bearing considerable debt with high interest rates. This vicious circle of debt, resource loss and poverty act as a dynamic force towards their long-lasting paucity and vulnerabilities, which curve their capability to get ready, take action, and recuperate from subsequent floods, as well as any other disasters. Government should formulate combined and effectual haor management and flood management policy and implemented suitably to shield lives and livelihoods of haor inhabitants. The Dhaka University Journal of Earth and Environmental Sciences, Vol. 8(1), 2019, P 41-51

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Climate Change Impacts and Mitigation Approach: Coastal Landscape, Transport, and Health Aspects

et al. 2021

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Uncertainties of Flash Flood in Context of Climate Change in Sunamganj District, Bangladesh

Cited by 3 publications

References 2 publications

A geospatial assessment of flood hazard in north‐eastern depressed basin, Bangladesh

A geospatial assessment of flood hazard in north‐eastern depressed basin, Bangladesh

Impacts of Flash Flood on Livelihood and Adaptation Strategies of the Haor Inhabitants: A Study in Tanguar Haor of Sunamganj, Bangladesh

Climate Change Impacts and Mitigation Approach: Coastal Landscape, Transport, and Health Aspects

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