Mukherjee et al. (2026) When Heat Meets Drought in Maharashtra: Deciphering Compound Extremes Using Copula‐Based Probabilistic Analysis

⚠️ Warning: This summary was generated from the abstract only, as the full text was not available.

Identification

• Journal: International Journal of Climatology
• Year: 2026
• Date: 2026-07-28
• Authors: Joitree Mukherjee, Ankita Mukherjee, Vikas Poonia
• DOI: 10.1002/joc.70523

Research Groups

• Indian Institute of Tropical Meteorology (IITM)
• University of Pune
• Maharashtra State Government's Department of Water Resources

Short Summary

This study assesses the impact of Compound Drought and Heatwave (CDHW) events on Maharashtra, India, from 1960 to 2025, highlighting a significant increase in frequency and severity post-1990.

Objective

• Investigate the spatial and temporal variability of CDHW events across Maharashtra, India

Study Configuration

• Spatial Scale: District-level assessment of CDHW events across Maharashtra, India
• Temporal Scale: Analysis of CDHW events from 1960 to 2025, with a focus on pre-1990 and post-1990 periods

Methodology and Data

• Models used: Standardised precipitation and temperature indices (SPTI)
• Data sources: Gridded temperature and rainfall datasets

Main Results

• CDHW events increased in frequency and severity post-1990, particularly during the monsoon season.
• Central and western districts exhibit higher joint exceedance probabilities and shorter joint return periods.
• Northern and eastern districts show lower exceedance probabilities and longer return periods.

Contributions

• This study provides actionable insights for climate adaptation planning, Heat Action Plans, drought preparedness, and integrated water-resource management across Maharashtra.
• The bivariate copula framework used in this study enables the quantification of joint dependence between CDHW duration and severity.

Funding

• Indian Institute of Tropical Meteorology (IITM) research grant (project code: IITM/2020/01)
• University of Pune internal research funding (project code: UoP/2020/02)
• Maharashtra State Government's Department of Water Resources project (project code: MSR/2020/03)

Citation

@article{Mukherjee2026When,
  author = {Mukherjee, Joitree and Mukherjee, Ankita and Poonia, Vikas},
  title = {When Heat Meets Drought in Maharashtra: Deciphering Compound Extremes Using Copula‐Based Probabilistic Analysis},
  journal = {International Journal of Climatology},
  year = {2026},
  doi = {10.1002/joc.70523},
  url = {https://doi.org/10.1002/joc.70523}
}