Articles | Volume 25, issue 12
Hydrol. Earth Syst. Sci., 25, 6359–6379, 2021
https://doi.org/10.5194/hess-25-6359-2021
Hydrol. Earth Syst. Sci., 25, 6359–6379, 2021
https://doi.org/10.5194/hess-25-6359-2021
Research article
16 Dec 2021
Research article | 16 Dec 2021

Calibrating 1D hydrodynamic river models in the absence of cross-section geometry using satellite observations of water surface elevation and river width

Liguang Jiang et al.

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Latest update: 08 Aug 2022
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Short summary
River roughness and geometry are essential to hydraulic river models. However, measurements of these quantities are not available in most rivers globally. Nevertheless, simultaneous calibration of channel geometric parameters and roughness is difficult as they compensate for each other. This study introduces an alternative approach of parameterization and calibration that reduces parameter correlations by combining cross-section geometry and roughness into a conveyance parameter.