Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 28, issue 7
Articles | Volume 28, issue 7
https://doi.org/10.5194/hess-28-1725-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-28-1725-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 28, issue 7
Research article
 | 
15 Apr 2024
Research article |  | 15 Apr 2024

Benchmarking multimodel terrestrial water storage seasonal cycle against Gravity Recovery and Climate Experiment (GRACE) observations over major global river basins

Sadia Bibi, Tingju Zhu, Ashraf Rateb, Bridget R. Scanlon, Muhammad Aqeel Kamran, Abdelrazek Elnashar, Ali Bennour, and Ci Li

Supplement

https://doi.org/10.5194/hess-28-1725-2024-supplement

Data sets

JPL GRACE Mascon Ocean, Ice, and Hydrology Equivalent Water Height Release 06 Coastal Resolution Improvement (CRI) Filtered Version 1.0 (TELLUS_GRACE_MASCON_CRI_GRID_RL06_V1) NASA https://doi.org/10.5067/TEMSC-3MJC6

KGClim historical: A 1-km global dataset of historical (1979--2013) Köppen-Geiger climate classification and bioclimatic variables (Version V2) [Data set] D. Cui et al. https://doi.org/10.5281/zenodo.5347837

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Short summary
We assessed 13 global models using GRACE satellite data over 29 river basins. Simulated seasonal water storage cycles showed discrepancies compared to GRACE. The models overestimated seasonal amplitude in boreal basins and showed underestimation in tropical, arid, and temperate zones, with phase differences of 2–3 months compared to GRACE in cold basins and of 1 month in temperate, arid, and semi-arid basins. Seasonal amplitude and phase differences provide insights for model improvement.
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