Articles | Volume 26, issue 1
Hydrol. Earth Syst. Sci., 26, 35–54, 2022
https://doi.org/10.5194/hess-26-35-2022
Hydrol. Earth Syst. Sci., 26, 35–54, 2022
https://doi.org/10.5194/hess-26-35-2022

Research article 04 Jan 2022

Research article | 04 Jan 2022

How well are we able to close the water budget at the global scale?

Fanny Lehmann et al.

Data sets

JPL GRACE Mascon Ocean, Ice, and Hydrology Equivalent Water Height Release 06 Coastal Resolution Improvement (CRI) Filtered Version 1.0 D. N. Wiese, D.-N. Yuan, C. Boening, F. W. Landerer, and M. M. Watkins https://doi.org/10.5067/TEMSC-3MJC6

Model code and software

lehmannfa/water_budget_closure F. Lehmann https://github.com/lehmannfa/water_budget_closure

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Short summary
Many data sources are available to evaluate components of the water cycle (precipitation, evapotranspiration, runoff, and terrestrial water storage). Despite this variety, it remains unclear how different combinations of datasets satisfy the conservation of mass. We conducted the most comprehensive analysis of water budget closure on a global scale to date. Our results can serve as a basis to select appropriate datasets for regional hydrological studies.