Resolution Dependence of Regional Hydro-Climatic Projection: A Case-Study for the Johor River Basin, Malaysia

High resolution models from the High-Resolution Model Intercomparison Project (HighResMIP), part of CMIP6, have the capacity to allow a better representation of the climate system in tropical regions, but how different model resolutions affect hydrological outputs remains unclear. This research aims...

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Autores principales:	Mou Leong Tan, Ju Liang, Matthew Hawcroft, James M. Haywood, Fei Zhang, Ruslan Rainis, Wan Ruslan Ismail
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	climate change CMIP6 HighResMIP SWAT water resource resolution Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/b5823dda335247d88492cfcbe4f917ce
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spelling	oai:doaj.org-article:b5823dda335247d88492cfcbe4f917ce2021-11-25T19:14:54ZResolution Dependence of Regional Hydro-Climatic Projection: A Case-Study for the Johor River Basin, Malaysia10.3390/w132231582073-4441https://doaj.org/article/b5823dda335247d88492cfcbe4f917ce2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/22/3158https://doaj.org/toc/2073-4441High resolution models from the High-Resolution Model Intercomparison Project (HighResMIP), part of CMIP6, have the capacity to allow a better representation of the climate system in tropical regions, but how different model resolutions affect hydrological outputs remains unclear. This research aims to evaluate projections of hydro-climatic change of the Johor River Basin (JRB) in southern Peninsular Malaysia between 1985 to 2015 and 2021 to 2050, focusing on uncertainty quantification of hydrological outputs from low (>1°), medium (0.5° to 1°) and high (≤0.5°) horizontal resolution models. These projections show future increases in annual precipitation of 0.4 to 3.1%, minimum and maximum temperature increases of 0.8 to 0.9 °C and 0.9 to 1.1 °C, respectively. These projected climate changes lead to increases in annual mean streamflow of 0.9% to 7.0% and surface runoff of 7.0% to 20.6% in the JRB. These annual mean changes are consistent with those during the wet period (November to December), e.g., streamflow increases of 4.9% to 10.8% and surface runoff of 28.8 to 39.9% in December. Disagreement in the direction of change is found during the dry seasons, (February to March and May to September), where high resolution models project a decrease in future monthly precipitation and streamflow, whilst increases are projected by the medium- and low-resolution models.Mou Leong TanJu LiangMatthew HawcroftJames M. HaywoodFei ZhangRuslan RainisWan Ruslan IsmailMDPI AGarticleclimate changeCMIP6HighResMIPSWATwater resourceresolutionHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3158, p 3158 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	climate change CMIP6 HighResMIP SWAT water resource resolution Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	climate change CMIP6 HighResMIP SWAT water resource resolution Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Mou Leong Tan Ju Liang Matthew Hawcroft James M. Haywood Fei Zhang Ruslan Rainis Wan Ruslan Ismail Resolution Dependence of Regional Hydro-Climatic Projection: A Case-Study for the Johor River Basin, Malaysia
description	High resolution models from the High-Resolution Model Intercomparison Project (HighResMIP), part of CMIP6, have the capacity to allow a better representation of the climate system in tropical regions, but how different model resolutions affect hydrological outputs remains unclear. This research aims to evaluate projections of hydro-climatic change of the Johor River Basin (JRB) in southern Peninsular Malaysia between 1985 to 2015 and 2021 to 2050, focusing on uncertainty quantification of hydrological outputs from low (>1°), medium (0.5° to 1°) and high (≤0.5°) horizontal resolution models. These projections show future increases in annual precipitation of 0.4 to 3.1%, minimum and maximum temperature increases of 0.8 to 0.9 °C and 0.9 to 1.1 °C, respectively. These projected climate changes lead to increases in annual mean streamflow of 0.9% to 7.0% and surface runoff of 7.0% to 20.6% in the JRB. These annual mean changes are consistent with those during the wet period (November to December), e.g., streamflow increases of 4.9% to 10.8% and surface runoff of 28.8 to 39.9% in December. Disagreement in the direction of change is found during the dry seasons, (February to March and May to September), where high resolution models project a decrease in future monthly precipitation and streamflow, whilst increases are projected by the medium- and low-resolution models.
format	article
author	Mou Leong Tan Ju Liang Matthew Hawcroft James M. Haywood Fei Zhang Ruslan Rainis Wan Ruslan Ismail
author_facet	Mou Leong Tan Ju Liang Matthew Hawcroft James M. Haywood Fei Zhang Ruslan Rainis Wan Ruslan Ismail
author_sort	Mou Leong Tan
title	Resolution Dependence of Regional Hydro-Climatic Projection: A Case-Study for the Johor River Basin, Malaysia
title_short	Resolution Dependence of Regional Hydro-Climatic Projection: A Case-Study for the Johor River Basin, Malaysia
title_full	Resolution Dependence of Regional Hydro-Climatic Projection: A Case-Study for the Johor River Basin, Malaysia
title_fullStr	Resolution Dependence of Regional Hydro-Climatic Projection: A Case-Study for the Johor River Basin, Malaysia
title_full_unstemmed	Resolution Dependence of Regional Hydro-Climatic Projection: A Case-Study for the Johor River Basin, Malaysia
title_sort	resolution dependence of regional hydro-climatic projection: a case-study for the johor river basin, malaysia
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b5823dda335247d88492cfcbe4f917ce
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Resolution Dependence of Regional Hydro-Climatic Projection: A Case-Study for the Johor River Basin, Malaysia

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