Next Article in Journal
Efficient Reservoir Modelling for Flood Regulation in the Ebro River (Spain)
Next Article in Special Issue
Groundwater Impacts and Management under a Drying Climate in Southern Australia
Previous Article in Journal
Knowledge Management and Operational Capacity in Water Utilities, a Balance between Human Resources and Digital Maturity—The Case of AGS
Previous Article in Special Issue
Evaluation of Streamflow under Climate Change in the Zambezi River Basin of Southern Africa
 
 
Article

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

1
GeoInformatic Unit, Geography Section, School of Humanities, Universiti Sains Malaysia (USM), Penang 11800, Malaysia
2
College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QE, UK
3
Centre for Applied Climate Sciences, University of Southern Queensland, Toowoomba, QLD 4350, Australia
4
Met Office, FitzRoy Road, Exeter EX1 3PB, UK
5
Key Laboratory of Wisdom City and Environmental Modeling of Higher Education Institute, College of Resources and Environment Sciences, Xinjiang University, Urumqi 830046, China
*
Author to whom correspondence should be addressed.
Academic Editor: Glen R. Walker
Water 2021, 13(22), 3158; https://doi.org/10.3390/w13223158
Received: 7 October 2021 / Revised: 30 October 2021 / Accepted: 2 November 2021 / Published: 9 November 2021
(This article belongs to the Special Issue Integrated Water Assessment and Management under Climate Change)
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. View Full-Text
Keywords: climate change; CMIP6; HighResMIP; SWAT; water resource; resolution; Malaysia; Johor climate change; CMIP6; HighResMIP; SWAT; water resource; resolution; Malaysia; Johor
Show Figures

Figure 1

MDPI and ACS Style

Tan, M.L.; Liang, J.; Hawcroft, M.; Haywood, J.M.; Zhang, F.; Rainis, R.; Ismail, W.R. Resolution Dependence of Regional Hydro-Climatic Projection: A Case-Study for the Johor River Basin, Malaysia. Water 2021, 13, 3158. https://doi.org/10.3390/w13223158

AMA Style

Tan ML, Liang J, Hawcroft M, Haywood JM, Zhang F, Rainis R, Ismail WR. Resolution Dependence of Regional Hydro-Climatic Projection: A Case-Study for the Johor River Basin, Malaysia. Water. 2021; 13(22):3158. https://doi.org/10.3390/w13223158

Chicago/Turabian Style

Tan, Mou Leong, Ju Liang, Matthew Hawcroft, James M. Haywood, Fei Zhang, Ruslan Rainis, and Wan Ruslan Ismail. 2021. "Resolution Dependence of Regional Hydro-Climatic Projection: A Case-Study for the Johor River Basin, Malaysia" Water 13, no. 22: 3158. https://doi.org/10.3390/w13223158

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop