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Multi-model assessment of climate change impacts on drought characteristics

Author

Listed:
  • Adnan Dehghani

    (Rice University)

  • Fatemehsadat Mortazavizadeh

    (E.T.S. Ingenieros de Minas y Energía, Universidad Politécnica de Madrid)

  • Amin Dehghani

    (University of Tehran)

  • Muhammad Bin Rahmat

    (University of Malaya (UM))

  • Hadi Galavi

    (University of Zabol)

  • David Bolonio

    (E.T.S. Ingenieros de Minas y Energía, Universidad Politécnica de Madrid)

  • Jing Lin Ng

    (Universiti Teknologi MARA (UiTM))

  • Vahid Rezaverdinejad

    (Urmia University)

  • Majid Mirzaei

    (University of Maryland)

Abstract

The study of projected rainfall data across multiple future scenarios is a key factor in developing sustainable water resource management plans. This paper presents an analysis of projected rainfall series in the Sabah and Sarawak region, Malaysia, against the bias-corrected GCM simulated rainfall data. Three Shared Socioeconomic Pathways (SSP) of SSP126, SSP245, and SSP585 were used to retrieve rainfall simulations of three Global Climate Models (GCMs) of Access-CM2, HadGEM, and UKESM1. The SSPs provide different pathways through which they can affect the rainfall trend. This investigation helps to illustrate the complex interactions between socio-economic developments and climatic changes, underlining the need for adaptive strategies in regional planning. The GCM outputs were downscaled using the quantile-based bias correction method for the future projections. The annual and monthly rainfall data were divided into two periods of 2021–2055 and 2056–2090 for detailed analysis of the future rainfall in the study area. This division allows for a clearer understanding of short-term versus long-term climatic impacts. The non-parametric Mann–Kendall (MK) test and the Sen’s Slope estimator were used to study the trend in the rainfall series. The rainfall data simulated using the Access-CM2 and the HadGEM showed a negative trend, while it was positive in the UKESM1 simulations. Generally, a positive trend in the projected rainfall series was observed. The rainfall series and the rainfall variability index (RVI) chart were plotted to compare the rainfall series of all the SSPs. The drought Severity-Duration-Frequency analysis for the return periods of 2-year, 5-years, 10-year, 20-year, and 50-year was also developed based on the RVI, to estimate the temporal trend of drought severity. These analyses are crucial for preparing effective drought management and mitigation strategies. Results demonstrated that as the drought duration increases its intensity and severity increases as well.

Suggested Citation

  • Adnan Dehghani & Fatemehsadat Mortazavizadeh & Amin Dehghani & Muhammad Bin Rahmat & Hadi Galavi & David Bolonio & Jing Lin Ng & Vahid Rezaverdinejad & Majid Mirzaei, 2025. "Multi-model assessment of climate change impacts on drought characteristics," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 121(5), pages 6069-6084, March.
    • Handle: RePEc:spr:nathaz:v:121:y:2025:i:5:d:10.1007_s11069-024-07015-z
    DOI: 10.1007/s11069-024-07015-z
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    References listed on IDEAS

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    1. Guillaume Rohat, 2018. "Projecting Drivers of Human Vulnerability under the Shared Socioeconomic Pathways," IJERPH, MDPI, vol. 15(3), pages 1-23, March.
    2. Milad Jajarmizadeh & Lariyah Mohd Sidek & Majid Mirzai & Sina Alaghmand & Sobri Harun & Mohammad Rafee Majid, 2016. "Prediction of Surface Flow by Forcing of Climate Forecast System Reanalysis Data," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 30(8), pages 2627-2640, June.
    3. Tugrul Varol & Ayhan Atesoglu & Halil Baris Ozel & Mehmet Cetin, 2023. "Copula-based multivariate standardized drought index (MSDI) and length, severity, and frequency of hydrological drought in the Upper Sakarya Basin, Turkey," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 116(3), pages 3669-3683, April.
    4. Hadi Galavi & Majid Mirzaei, 2020. "Analyzing Uncertainty Drivers of Climate Change Impact Studies in Tropical and Arid Climates," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 34(6), pages 2097-2109, April.
    5. Milad Jajarmizadeh & Lariyah Mohd Sidek & Majid Mirzaei & Sina Alaghmand & Sobri Harun & Mohammad Rafee Majid, 2016. "Erratum to: Prediction of Surface Flow by Forcing of Climate Forecast System Reanalysis Data," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 30(10), pages 3651-3651, August.
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