Articles | Volume 28, issue 7
https://doi.org/10.5194/hess-28-1527-2024
https://doi.org/10.5194/hess-28-1527-2024
Research article
 | 
04 Apr 2024
Research article |  | 04 Apr 2024

Sediment transport in South Asian rivers high enough to impact satellite gravimetry

Alexandra Klemme, Thorsten Warneke, Heinrich Bovensmann, Matthias Weigelt, Jürgen Müller, Tim Rixen, Justus Notholt, and Claus Lämmerzahl

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Cited articles

Akter, J., Roelvink, D., and van der Wegen, M.: Process-based modeling deriving a long-term sediment budget for the Ganges-Brahmaputra-Meghna Delta, Bangladesh, Estuar. Coast. Shelf S., 260, 107509, https://doi.org/10.1016/j.ecss.2021.107509, 2021. a, b, c, d
Bisht, H., Kotlia, B. S., Kumar, K., Dumka, R. K., Taloor, A. K., and Upadhyay, R.: GPS derived crustal velocity, tectonic deformation and strain in the Indian Himalayan arc, Quatern. Int., 575–576, 141–152, https://doi.org/10.1016/j.quaint.2020.04.028, sI: Remote Sensing and GIS Applications in Quaternary Sciences, 2021. a, b
Boergens, E., Dobslaw, H., and Dill, R.: COST-G GravIS RL01 Continental Water Storage Anomalies. V. 0004, GFZ Data Services, https://doi.org/10.5880/COST-G.GRAVIS_01_L3_TWS, 2020. a, b, c, d, e, f
Boergens, E., Dobslaw, H., and Dill, R.: COST-G GravIS RL01 Continental Water Storage Anomalies. V. 0005, GFZ Data Services [data set], https://doi.org/10.5880/COST-G.GRAVIS_01_L3_TWS, 2020. a
Borrelli, P., Robinson, D. A., Fleischer, L. R., Lugato, E., Ballabio, C., Alewell, C., Meusburger, K., Modugno, S., Schütt, B., Ferro, V., Bagarello, V., Oost, K. V., Montanarella, L., and Panagos, P.: An assessment of the global impact of 21st century land use change on soil erosion, Nat. Commun., 8, 2013, https://doi.org/10.1038/s41467-017-02142-7, 2017. a
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Short summary
Satellite data help estimate groundwater depletion, but earlier assessments missed mass loss from river sediment. In the Ganges–Brahmaputra–Meghna (GBM) river system, sediment accounts for 4 % of the depletion. Correcting for sediment in the GBM mountains reduces estimated depletion by 14 %. It's important to note that the Himalayas' uplift may offset some sediment-induced mass loss. This understanding is vital for accurate water storage trend assessments and sustainable groundwater management.
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