Articles | Volume 25, issue 1
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, Juan Pablo Boisier, René Garreaud, Jan Seibert, and Marc Vis

Data sets

CAMELS-CL explorer C. Alvarez-Garreton

ERA5-Land monthly averaged data from 1981 to present J. Muñoz Sabater

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.