Heavy Rainfall Resulting from Extreme Weather Disturbances in Eastern Coastal Parts of South Africa: 11 April 2022

Sivakumar, Venkataraman; Fazel-Rastgar, Farahnaz

doi:10.1007/978-3-031-34783-2_9

Environmental Earth Sciences

2023

DOI: 10.1007/978-3-031-34783-2_9

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Heavy Rainfall Resulting from Extreme Weather Disturbances in Eastern Coastal Parts of South Africa: 11 April 2022

Venkataraman Sivakumar

Farahnaz Fazel-Rastgar

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A case study of an extreme flooding episode in Charikar, Eastern Afghanistan

Fazel-Rastgar,

Sivakumar

2023

Journal of Water and Climate Change

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This work investigates the meteorological mechanisms forming a classical frontal system on 26 August 2020 in the northeast and eastern parts of Afghanistan. The weather system caused heavy rainfall and led to severe flash floods. Flooding, affected by torrential rain showers, struck mostly the city of Charikar in Parvan province early in the morning day, while most people were asleep. This caused 150 deaths, and nearly 500 houses were destroyed. This research explores atmospheric processes by examining the National Centers for Environmental Prediction dataset and MERRA Model database. The calculation of the convective available potential energy (CAPE) and Showalter index extracted from the Skew-T log-pressure diagram shows a high value of the CAPE at around 2,632 J/kg and −6.6 for the Showalter index, respectively. This presents a very extreme instability in the study area during the time of the flood. The study reveals that the triggering of this system was mostly by thermodynamical aspects, low-level deep convergence, and local topographical aspects rather than the PV streamer. However, the anomaly climate analysis for different atmospheric elements with a comparison of the climate normal values shows the importance of climate change in the weather system into a stronger frontal activity associated with stronger baroclinicity over the study area.

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A case study of an extreme flooding episode in Charikar, Eastern Afghanistan

Fazel-Rastgar,

Sivakumar

2023

Journal of Water and Climate Change

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Heavy Rainfall Resulting from Extreme Weather Disturbances in Eastern Coastal Parts of South Africa: 11 April 2022

Cited by 1 publication

References 57 publications

A case study of an extreme flooding episode in Charikar, Eastern Afghanistan

A case study of an extreme flooding episode in Charikar, Eastern Afghanistan

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