Articles | Volume 26, issue 2
https://doi.org/10.5194/nhess-26-791-2026
https://doi.org/10.5194/nhess-26-791-2026
Research article
 | 
13 Feb 2026
Research article |  | 13 Feb 2026

Rapid amplification of Compound Drought and Heatwave risk over India: a regime shift from arid northwest to humid southern and eastern hotspots

Debankana Bhattacharjee and Chandrika Thulaseedharan Dhanya

Data sets

Compound Drought and Heatwave Analysis Debankana Bhattacharjee and Chandrika Thulaseedharan Dhanya https://doi.org/10.5281/zenodo.15255598

Model code and software

Compound Drought and Heatwave Analysis Debankana Bhattacharjee and Chandrika Thulaseedharan Dhanya https://doi.org/10.5281/zenodo.15255598

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Short summary
India has been increasingly facing simultaneous drought and heatwave events over the past six decades. Using a spell-sensitive index to capture variability in precipitation spells, the spread and intensification of the compound events is tracked toward historically safe humid regions. These events are becoming more frequent, severe, and harder to mitigate, even with short wet spells, highlighting the urgent need to rethink climate preparedness across both traditionally dry and wet regions.
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