Articles | Volume 30, issue 20
https://doi.org/10.5194/hess-30-6623-2026
https://doi.org/10.5194/hess-30-6623-2026
Research article
 | 
29 Oct 2026
Research article |  | 29 Oct 2026

Enhancing hydrological representation of the Brahmaputra basin through terrestrial water storage and surface soil moisture Data Assimilation

Leire Retegui-Schiettekatte, Manuela Girotto, Maike Schumacher, Mohammad Shamsudduha, Henrik Madsen, and Ehsan Forootan

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Cited articles

Ahmad, J. A., Forman, B. A., Getirana, A., and Kumar, S. V.: Influence of SMAP soil moisture retrieval assimilation on runoff estimation across South Asia, J. Hydrol., 639, 131550, https://doi.org/10.1016/j.jhydrol.2024.131550, 2024. a
Alam, S., Ali, M. M., Rahaman, A. Z., and Islam, Z.: Multi-model ensemble projection of mean and extreme streamflow of Brahmaputra River Basin under the impact of climate change, J. Water Clim. Change, 12, 2026–2044, https://doi.org/10.2166/wcc.2021.286, 2021. a, b
Amatulli, G., Domisch, S., Tuanmu, M.-N., Parmentier, B., Ranipeta, A., Malczyk, J., and Jetz, W.: A suite of global, cross-scale topographic variables for environmental and biodiversity modeling, Sci. Data, 5, 180040, https://doi.org/10.1038/sdata.2018.40, 2018. a, b
Beguería, S., Vicente-Serrano, S. M., Reig, F., and Latorre, B.: Standardized precipitation evapotranspiration index (SPEI) revisited: parameter fitting, evapotranspiration models, tools, datasets and drought monitoring, Int. J. Climatol., 34, 3001–3023, https://doi.org/10.1002/joc.3887, 2014. a, b
Blyverket, J., Hamer, P. D., Bertino, L., Albergel, C., Fairbairn, D., and Lahoz, W. A.: An Evaluation of the EnKF vs. EnOI and the Assimilation of SMAP, SMOS and ESA CCI Soil Moisture Data over the Contiguous US, Remote Sens., 11, 478, https://doi.org/10.3390/rs11050478, 2019. a
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Short summary
An improved method is used to integrate satellite-derived terrestrial water storage and surface soil moisture observations into a hydrological model within the Brahmaputra River basin (South Asia). This leads to a more realistic representation of the water stored in the land, allowing us to better understand its changes in space and time. The information the results provide is crucial in this basin due to its increasing water demand and vulnerability to extreme events because of climate change.
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