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Assessment of characteristic changes of regional estimation of extreme rainfall under climate change: A case study in a tropical monsoon region with the climate projections from CMIP6 model by Samiran Das; Mohammad Kamruzzaman; Abu Reza Md. Towfiqul Islam is a Environmental Science article available to read on EtoBox.

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Climate change is perceived to be the main reason in affecting global rainfall patterns. The estimation of rainfall extremes based on historical data, hence, might undervalue the risk related to the design of water infrastructure system. Bangladesh, a tropical monsoon region, is highly vulnerable to climate change; however, little is investigated in the changes of extreme rainfall under climate change. Also, the impact of climate change on the behavioural changes of regional estimate of extreme estimation is understudied. The goal of this study is to examine the characteristic changes of regional estimate of extreme rainfall at the daily time scale under the backdrop of climate change in Bangladesh. The multi-model ensemble method consists of several global climate models (CMIP6 GCMs) and two emission scenarios were employed to assess the effect of climate change in two time horizons: 2021-2060 and 2061-2100. The regional index-flood approach comprised of index value and growth curve (estimated using generalized extreme value, GEV, distribution) was used to quantify the return period values of extreme rainfall. The above approach was applied to observed as well as simulated rainfal

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Author

Samiran Das; Mohammad Kamruzzaman; Abu Reza Md. Towfiqul Islam

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Environmental Science (Physical Sciences)