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

Jiang, Liguang; Westphal Christensen, Silja; Bauer-Gottwein, Peter

doi:https://doi.org/10.5194/hess-25-6359-2021

Articles | Volume 25, issue 12

https://doi.org/10.5194/hess-25-6359-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-25-6359-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 12

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, Silja Westphal Christensen, and Peter Bauer-Gottwein

Model code and software

Calibrating 1D hydrodynamic river models in the absence of cross-section geometry in DHI MIKE HYDRO L. Jiang, S. W. Christensen, and P. Bauer-Gottwein https://doi.org/10.5281/zenodo.5782990

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.