Skip to main content

Advertisement

Log in

Relative performance of CMIP5 and CMIP6 models in simulating rainfall in Peninsular Malaysia

  • Original Paper
  • Published:
Theoretical and Applied Climatology Aims and scope Submit manuscript

Abstract

This study evaluated the skills of global climate models (GCMs) of the fifth and sixth Coupled Model Intercomparison Project (CMIP5 and CMIP6) in simulating observed rainfall climatology, seasonal variability, and probability distribution function (PDF) in Peninsular Malaysia. Monthly rainfall records of eighty stations for 1975 − 2005 were employed for this purpose. The Kling-Gupta efficiency was applied to estimate GCMs’ skill to reconstruct rainfall climatology and seasonal variability, while Perkins skill score to replicate PDF. The GCMs of individual CMIP were initially ranked based on the individual metric, and then a compromise rating matric was then employed for the grading. Finally, the highest-ranking CMIP6 GCMs were identified and employed for rainfall projections over Peninsular Malaysia for different shared socioeconomic pathways (SSPs). Results revealed higher bias in CMIP6 GCMs than CMIP5 GCMs but the better association in replicating rainfall climatology and seasonal variability. The EC-ERATH was the best performing model in CMIP5, followed by MPI-ESM-LR, FGOALS-g2, and CanESM2. In contrast, MPI-ESM-MR showed the highest skill among CMIP6 models, followed by MPI-ESM-LR, MIROC-ESM, and GFDL-ESM2M. The employment of the most skilled four GMIP6 GCMs in projecting rainfall in the peninsula revealed a non-linear rainfall change for SSPs—an increase in rainfall for SSP1-26 and SSP5-85 and a decrease for SSP2-45 and SSP3-70. Overall, rainfall was projected to increase in the northwest and central south by 10 − 20% and decrease in the northeast and far south by 1 to 30%.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11

Similar content being viewed by others

Data Availability

All the data are available in the public domain at the links provided in the text.

Code Availability

The codes used for data processing can be provided on request to the corresponding author.

References

Download references

Acknowledgements

The authors are also thankful to the WCRP Coupled Model Intercomparison Project (Phase 6) website of the Program for Climate Model Diagnosis and Intercomparison (PCMDI) for providing GCM simulation data through the data portal. The authors are also grateful to the Department of Drainage (DID), Malaysia, for providing rainfall records.

Funding

The authors are grateful to Universiti Teknologi Malaysia (UTM) for providing financial support to conduct this research through Postdoctoral Fellowship (Teaching & Learning) Scheme.

Author information

Authors and Affiliations

Authors

Contributions

All authors equally contributed to conceptualizing and designing the study. Sahar Hadi Pour collected data, performed necessary analysis, prepared results, and the first draft; Shamsuddin Shahid wrote the programming code for data analysis and repeatedly revised the initial draft to generate the final version. Mohammed Mainuddin performed investigation, revision, and manuscript editing.

Corresponding author

Correspondence to Sahar Hadi Pour.

Ethics declarations

Conflict of interest

The authors declare no competing interests.

Additional information

Publisher's note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Pour, S.H., Shahid, S. & Mainuddin, M. Relative performance of CMIP5 and CMIP6 models in simulating rainfall in Peninsular Malaysia. Theor Appl Climatol 149, 709–725 (2022). https://doi.org/10.1007/s00704-022-04076-7

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00704-022-04076-7

Keywords

Navigation