Groundwater storage dynamics in the world's large aquifer systems from GRACE: uncertainty and role of extreme precipitation

Shamsudduha, Mohammad; Taylor, Richard G.

doi:https://doi.org/10.5194/esd-11-755-2020

Articles | Volume 11, issue 3

https://doi.org/10.5194/esd-11-755-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/esd-11-755-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 11, issue 3

Research article

| Highlight paper

|

27 Aug 2020

Research article | Highlight paper |

| 27 Aug 2020

Groundwater storage dynamics in the world's large aquifer systems from GRACE: uncertainty and role of extreme precipitation

Mohammad Shamsudduha and Richard G. Taylor

Supplement

https://doi.org/10.5194/esd-11-755-2020-supplement

Data sets

GRACE and GLDAS datasets for world's large aquifer systems Mohammad Shamsudduha and Richard Taylor https://doi.org/10.5285/0387fd53-9fed-468e-bda9-0bde8f5fda13

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Short summary

Recent assessments of the sustainability of global groundwater resources using the Gravity Recovery and Climate Experiment (GRACE) satellites assume that the underlying trends are linear. Here, we assess recent changes in groundwater storage (ΔGWS) in the world’s large aquifer systems using an ensemble of GRACE datasets and show that trends are mostly non-linear. Non-linearity in ΔGWS derives, in part, from the episodic nature of groundwater replenishment associated with extreme precipitation.