Providing guidance on efficient flash flood documentation: an application based approach

Kaiser, Maria; Günnemann, Stephan; Disse, Markus

doi:10.1016/j.jhydrol.2019.124466

Cited by 12 publications

(5 citation statements)

References 44 publications

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“…Bangladesh is subjected to different types of floods such as river (often called the monsoon) floods, tidal or coastal, flash, and tropical cyclones-induced storm-surge floods [44,45] . e A precise definition of flash floods is problematic and frequently debated (e.g., [46][47][48][49] . Flash floods are caused by excessive rainfall in a short period of time with a small lead time and very limited warning time.…”

Section: Was the 2020 August Event Considered A Flash Flood?mentioning

confidence: 99%

Coping Measures and Social Capital in Offsetting Effects of an Estuary Flash Flood in Bangladesh: A Case Study

Rahman,

Paul,

Hossain

2024

j. of geogr. res.

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The northern, northeastern, and southeastern parts of Bangladesh are highly susceptible to the impacts of flash flooding. Beyond these typical areas, flash floods also occur in the coastal areas of the country. The objective of this paper is to examine the ways residents of a coastal area have coped with the impacts of the flash flood event that took place on 5 August 2020 in 26 villages of Kamalnagar and Ramgati upazilas in the Lakshmipur district, Bangladesh. A household survey conducted in these villages revealed that nearly 83% of the respondents adopted two of the six broad groups of coping measures to recover from the impacts of the 2020 flash flood event. Unlike flash floods in typical areas, the survivors in the study area did not receive any emergency assistance either from local/national governments or NGOs, creating a cause of anger among the flash flood survivors. They offset the event effects largely by social capital through social networks and social relations. This study concludes that the government of Bangladesh should have effective policies to reduce the impacts of coastal flash flooding.

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Section: Was the 2020 August Event Considered A Flash Flood?mentioning

confidence: 99%

Coping Measures and Social Capital in Offsetting Effects of an Estuary Flash Flood in Bangladesh: A Case Study

Rahman,

Paul,

Hossain

2024

j. of geogr. res.

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“…This may be simply because no floods have occurred, for example with dry ground or permeable soils able to accept the incident rainfall. Kaiser et al (2020) recommend that such ‘negative’ events where heavy precipitation did not cause a flash flood, be included in a database to help understand threshold conditions for flooding. However, the majority of cases with intense rainfall but no reported flooding are because flood information sources have not yet been identified.…”

Section: Description Of the Chronologymentioning

confidence: 99%

“…Chronologies or databases of flash floods also suffer from a wide variety of definitions. Kaiser, Günnemann, and Disse (2020) described 11 chronologies, 5 from Europe, 3 from the United States and 1 from China. The majority of these used properties of rainfall as the principal factor to define a threshold between flash floods and normal floods (between short intense or long‐lasting precipitation).…”

Section: Introductionmentioning

confidence: 99%

A historical flash flood chronology for Britain

Archer

Fowler

2021

J Flood Risk Management

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The chronology provides a record of flash flood events in Britain based on data collated mainly between 1700 and 2020. The primary purpose of the chronology is to improve the risk assessment of flash floods of given magnitude. It is divided into 18 regions of the country and contains descriptions of nearly 8000 events. It extends a previous chronology covering northern and southwest England which is provided as an online resource in (http://ceg-fepsys.ncl.ac.uk/outputs/). Flash floods have had a variety of previous definitions but are here defined in terms of the speed of onset which can apply to both river floods and surface water floods. The chronology for the first time provides a comprehensive list of surface water floods and their recorded impact on cities, towns and villages. It also draws attention to the prevalence of very rapid rates of rise in river level either as ‘walls of water’, or at a rate likely to endanger life as a result of intense rainfall. Nearly 300 such events have been identified mainly in upland areas of northern England, Wales and Scotland. Practical and theoretical issues with respect to flood risk assessment and warning are discussed. The chronology is available to download and is hosted on https://www.jbatrust.org/how-we-help/publications-resources/rivers-and-coasts/uk-chronology-of-flash-floods-1/

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“…A significant problem may arise in small catchments that are poorly gauged or when no recorded data exist (Szolgay et al, 2020). Several published datasets exist that document flash flood and surface runoff events triggered by heavy precipitation (Kaiser et al, 2020). According these authors, the amount of documented events increases steadily towards recent decades.…”

Section: Introductionmentioning

confidence: 99%

Post-flood field investigation of the June 2020 flash flood in the upper Muráň River basin and the catastrophic flash flood scenario

Pekárová

Mészáros

Miklánek

et al. 2021

Journal of Hydrology and Hydromechanics

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After a dry spring, in June 2020 several intense storms occurred at the headwaters of the small basins of the Muráň and Zdychava rivers in the territory of the Muránska planina National Park (Slaná River basin, Slovakia). In the first part of the study– according to a hydrological survey made by the authors after the flash flood – the peak discharge was reconstructed at several Muráň River profiles. Next, the flash flood waves were reconstructed by the rainfall-runoff model NLC (non-linear cascade). The results of modelling based on field investigations show that, despite the extreme precipitation event (108 mm per 1 hour at the precipitation gauging station at Predná Hora), the peak flow rates were not exceptional in selected profiles on the Muráň River. The fact that extreme precipitation above 120 mm fell in a relatively very small area at the division of the Muráň and Zdychava rivers’ water contributed to this result. In the second part, a catastrophic 1000-year rainfall event scenario on the Zdychava River basin has been prepared. In analysing time series and identifying T-year daily rainfall depths, daily data was used from six precipitation stations in the vicinity of Muránska planina. Then, the 1000-year discharge of the Zdychava at Revúca was simulated by the calibrated NLC model. In such an extreme precipitation scenario, the peak flow rate would reach 105.15 m3 s−1, i.e. with a specific runoff of 1.78 m3 s−1 km–2. The total runoff in an 18-hour period would be 1.119 million m3, representing 21.11% of the rainfall (5.301 million m3).

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Providing guidance on efficient flash flood documentation: an application based approach

Cited by 12 publications

References 44 publications

Coping Measures and Social Capital in Offsetting Effects of an Estuary Flash Flood in Bangladesh: A Case Study

Coping Measures and Social Capital in Offsetting Effects of an Estuary Flash Flood in Bangladesh: A Case Study

A historical flash flood chronology for Britain

Post-flood field investigation of the June 2020 flash flood in the upper Muráň River basin and the catastrophic flash flood scenario

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