Changes in mean evapotranspiration dominate  groundwater recharge in semi-arid regions

Turkeltaub, Tuvia; Bel, Golan

doi:https://doi.org/10.5194/hess-28-4263-2024

Articles | Volume 28, issue 18

https://doi.org/10.5194/hess-28-4263-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-28-4263-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 28, issue 18

Research article

|

18 Sep 2024

Research article |

| 18 Sep 2024

Changes in mean evapotranspiration dominate groundwater recharge in semi-arid regions

Tuvia Turkeltaub and Golan Bel

Supplement

https://doi.org/10.5194/hess-28-4263-2024-supplement

Data sets

Simulated and reported groundwater recharge fluxes in 196 locations in arid and semi-arid regions Tuvia Turkeltaub https://doi.org/10.4211/hs.5a28b74c55c74a7e9ad2b59a0a5d9ab3

Short summary

Future climate projections suggest that climate change will impact groundwater recharge, with its exact effects being uncertain due to incomplete understanding of rainfall, evapotranspiration, and recharge relations. We studied the effects of changes in the average, spread, and frequency of extreme events of rainfall and evapotranspiration on groundwater recharge. We found that increasing or decreasing the potential evaporation has the most dominant effect on groundwater recharge.