Impact of climate change on hydro-meteorological drought over the Be River Basin, Vietnam

In this paper, the responses of hydro-meteorological drought to changing climate in the Be River Basin located in Southern Vietnam are investigated. Climate change scenarios for the study area were statistically downscaled using the Long Ashton Research Station Weather Generator tool, which incorpor...

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Autores principales:	Dao Nguyen Khoi, Truong Thao Sam, Pham Thi Loi, Bui Viet Hung, Van Thinh Nguyen
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	be river basin climate change hydro-meteorological drought swat model Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/0973e40469ab4a05999ac77f8ba5ca62
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spelling	oai:doaj.org-article:0973e40469ab4a05999ac77f8ba5ca622021-11-09T23:59:40ZImpact of climate change on hydro-meteorological drought over the Be River Basin, Vietnam2040-22442408-935410.2166/wcc.2021.137https://doaj.org/article/0973e40469ab4a05999ac77f8ba5ca622021-11-01T00:00:00Zhttp://jwcc.iwaponline.com/content/12/7/3159https://doaj.org/toc/2040-2244https://doaj.org/toc/2408-9354In this paper, the responses of hydro-meteorological drought to changing climate in the Be River Basin located in Southern Vietnam are investigated. Climate change scenarios for the study area were statistically downscaled using the Long Ashton Research Station Weather Generator tool, which incorporates climate projections from Coupled Model Intercomparison Project 5 (CMIP5) based on an ensemble of five general circulation models (Can-ESM2, CNRM-CM5, HadGEM2-AO, IPSL-CM5A-LR, and MPI-ESM-MR) under two Representative Concentration Pathway (RCP) scenarios (RCP4.5 and RCP8.5). The Soil and Water Assessment Tool model was employed to simulate streamflow for the baseline time period and three consecutive future 20-year periods of 2030s (2021–2040), 2050s (2041–2060), and 2070s (2061–2080). Based on the simulation results, the Standardized Precipitation Index and Standardized Discharge Index were estimated to evaluate the features of hydro-meteorological droughts. The hydrological drought has a 1-month lag time from the meteorological drought and the hydro-meteorological droughts have negative correlations with the El Niño Southern Oscillation and Pacific Decadal Oscillation. Under the climate change impacts, the trends of drought severity will decrease in the future; while the trends of drought frequency will increase in the near future period (2030s), but decrease in the following future periods (2050 and 2070s). The findings of this study can provide useful information for the policy- and decisionmakers for a better future planning and management of water resources in the study region. HIGHLIGHTS There is a lack of knowledge about how climate change will affect the hydro-meteorological drought in the tropical region.; The hydro-meteorological droughts have negative correlations with the global climate oscillation.; The drought frequency will have a rising trend in the near future period (2030s) and downward trends in the following future periods (2050 and 2070s).;Dao Nguyen KhoiTruong Thao SamPham Thi LoiBui Viet HungVan Thinh NguyenIWA Publishingarticlebe river basinclimate changehydro-meteorological droughtswat modelEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENJournal of Water and Climate Change, Vol 12, Iss 7, Pp 3159-3169 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	be river basin climate change hydro-meteorological drought swat model Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	be river basin climate change hydro-meteorological drought swat model Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Dao Nguyen Khoi Truong Thao Sam Pham Thi Loi Bui Viet Hung Van Thinh Nguyen Impact of climate change on hydro-meteorological drought over the Be River Basin, Vietnam
description	In this paper, the responses of hydro-meteorological drought to changing climate in the Be River Basin located in Southern Vietnam are investigated. Climate change scenarios for the study area were statistically downscaled using the Long Ashton Research Station Weather Generator tool, which incorporates climate projections from Coupled Model Intercomparison Project 5 (CMIP5) based on an ensemble of five general circulation models (Can-ESM2, CNRM-CM5, HadGEM2-AO, IPSL-CM5A-LR, and MPI-ESM-MR) under two Representative Concentration Pathway (RCP) scenarios (RCP4.5 and RCP8.5). The Soil and Water Assessment Tool model was employed to simulate streamflow for the baseline time period and three consecutive future 20-year periods of 2030s (2021–2040), 2050s (2041–2060), and 2070s (2061–2080). Based on the simulation results, the Standardized Precipitation Index and Standardized Discharge Index were estimated to evaluate the features of hydro-meteorological droughts. The hydrological drought has a 1-month lag time from the meteorological drought and the hydro-meteorological droughts have negative correlations with the El Niño Southern Oscillation and Pacific Decadal Oscillation. Under the climate change impacts, the trends of drought severity will decrease in the future; while the trends of drought frequency will increase in the near future period (2030s), but decrease in the following future periods (2050 and 2070s). The findings of this study can provide useful information for the policy- and decisionmakers for a better future planning and management of water resources in the study region. HIGHLIGHTS There is a lack of knowledge about how climate change will affect the hydro-meteorological drought in the tropical region.; The hydro-meteorological droughts have negative correlations with the global climate oscillation.; The drought frequency will have a rising trend in the near future period (2030s) and downward trends in the following future periods (2050 and 2070s).;
format	article
author	Dao Nguyen Khoi Truong Thao Sam Pham Thi Loi Bui Viet Hung Van Thinh Nguyen
author_facet	Dao Nguyen Khoi Truong Thao Sam Pham Thi Loi Bui Viet Hung Van Thinh Nguyen
author_sort	Dao Nguyen Khoi
title	Impact of climate change on hydro-meteorological drought over the Be River Basin, Vietnam
title_short	Impact of climate change on hydro-meteorological drought over the Be River Basin, Vietnam
title_full	Impact of climate change on hydro-meteorological drought over the Be River Basin, Vietnam
title_fullStr	Impact of climate change on hydro-meteorological drought over the Be River Basin, Vietnam
title_full_unstemmed	Impact of climate change on hydro-meteorological drought over the Be River Basin, Vietnam
title_sort	impact of climate change on hydro-meteorological drought over the be river basin, vietnam
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/0973e40469ab4a05999ac77f8ba5ca62
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_version_	1718440718227210240

Impact of climate change on hydro-meteorological drought over the Be River Basin, Vietnam

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