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Hossain, A.T.M.S., Jafrin, S.J., Khan, P.A., Khatun, M., Imam, H., Sayem, H.M., Dutta, T. and Haque, M.E. (2023) The Hidden Geo-Hazards in the Rohingya Refugee Camps of Ukhiya, Cox’s Bazar, Bangladesh-A Threat for Sustainable Development. Book Volume of IAEG XIV Congress, Chengdu, 12 October 2022, Abstract No-221-5.
https://doi.org/10.1130/abs/2022AM-378674

has been cited by the following article:

• TITLE: Climate Variability & Establishment of Rainfall Threshold Line for Landslide Hazards in Rangamati, Bangladesh

  AUTHORS: Mahmuda Khatun, Abu Taher Mohammad Shakhawat Hossain, Hossain Md. Sayem

  KEYWORDS: Climate Change, Antecedent Rainfall, Rainfall Threshold, Catastrophic and Landslide

  JOURNAL NAME: Open Journal of Geology, Vol.13 No.9, September 18, 2023

  ABSTRACT: This study aims to evaluate the impact of extreme rainfall events on landslides under current and past climate scenarios. Rainfall-triggered landslides are analyzed by rainfall estimates, derived using statistics of events. It is established that recent climate changes, mainly temperature and rainfall patterns have significantly increased the rainfall-induced landslide hazards in the Rangamati district, Bangladesh. It is also observed that the temperature and rainfall of Rangamati had increased gradually during the last 40 years (1981-2021). On 13 June 2017, a series of landslides triggered by heavy monsoon rains (300 mm/24 h) occurred and killed more than 112 people in the Rangamati hill district, Bangladesh. The highest annual decade rainfall is 3816 mm, recorded in 2010-21. A relationship between causalities and the number of events has also been established. The analysis shows that both antecedent and single-day major rainfall patterns can influence sliding events. It is established that monsoonal rainfall (June-September) can significantly influence catastrophic landslide hazard events. Finally, two rainfall threshold lines for the researched area are constructed based on antecedent and single-day major rainfall occurrences, as well as the number of fatalities caused by landslides. Total rainfall of 100 mm (16.66 mm/day) during six days appears to define the minimum rainfall that has led to shallow landslides/slope failures, while 210 mm (35 mm/day) within six days appears to define the lowest rainfall that could be a cause of catastrophic landslide in Rangamati district.