Articles | Volume 26, issue 4
Hydrol. Earth Syst. Sci., 26, 1089–1109, 2022
https://doi.org/10.5194/hess-26-1089-2022
Hydrol. Earth Syst. Sci., 26, 1089–1109, 2022
https://doi.org/10.5194/hess-26-1089-2022
Research article
24 Feb 2022
Research article | 24 Feb 2022

The importance of vegetation in understanding terrestrial water storage variations

Tina Trautmann et al.

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Cited articles

Andersen, O. B., Krogh, P. E., Bauer-Gottwein, P., Leiriao, S., Smith, R., and Berry, P.: Terrestrial Water Storage from GRACE and Satellite Altimetry in the Okavango Delta (Botswana), IAG Symp., 135, 521–526, https://doi.org/10.1007/978-3-642-10634-7_69, 2010. 
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Baldocchi, D., Ma, S., and Verfaillie, J.: On the inter- and intra-annual variability of ecosystem evapotranspiration and water use efficiency of an oak savanna and annual grassland subjected to booms and busts in rainfall, Glob. Change Biol., 27, 359–375, https://doi.org/10.1111/gcb.15414, 2021. 
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We assess the effect of how vegetation is defined in a global hydrological model on the composition of total water storage (TWS). We compare two experiments, one with globally uniform and one with vegetation parameters that vary in space and time. While both experiments are constrained against observational data, we found a drastic change in the partitioning of TWS, highlighting the important role of the interaction between groundwater–soil moisture–vegetation in understanding TWS variations.