Articles | Volume 25, issue 1
Hydrol. Earth Syst. Sci., 25, 429–446, 2021
https://doi.org/10.5194/hess-25-429-2021
Hydrol. Earth Syst. Sci., 25, 429–446, 2021
https://doi.org/10.5194/hess-25-429-2021

Research article 28 Jan 2021

Research article | 28 Jan 2021

Progressive water deficits during multiyear droughts in basins with long hydrological memory in Chile

Camila Alvarez-Garreton et al.

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Latest update: 18 Oct 2021
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Short summary
The megadrought experienced in Chile (2010–2020) has led to larger than expected water deficits. By analysing 106 basins with snow-/rainfall regimes, we relate such intensification with the hydrological memory of the basins, explained by snow and groundwater. Snow-dominated basins have larger memory and thus accumulate the effect of persistent precipitation deficits more strongly than pluvial basins. This notably affects central Chile, a water-limited region where most of the population lives.