Articles | Volume 24, issue 7
https://doi.org/10.5194/nhess-24-2315-2024
https://doi.org/10.5194/nhess-24-2315-2024
Research article
 | 
09 Jul 2024
Research article |  | 09 Jul 2024

An improved dynamic bidirectional coupled hydrologic–hydrodynamic model for efficient flood inundation prediction

Yanxia Shen, Zhenduo Zhu, Qi Zhou, and Chunbo Jiang

Related authors

Median bed-material sediment particle size across rivers in the contiguous US
Guta Wakbulcho Abeshu, Hong-Yi Li, Zhenduo Zhu, Zeli Tan, and L. Ruby Leung
Earth Syst. Sci. Data, 14, 929–942, https://doi.org/10.5194/essd-14-929-2022,https://doi.org/10.5194/essd-14-929-2022, 2022
Short summary
A new large-scale suspended sediment model and its application over the United States
Hong-Yi Li, Zeli Tan, Hongbo Ma, Zhenduo Zhu, Guta Wakbulcho Abeshu, Senlin Zhu, Sagy Cohen, Tian Zhou, Donghui Xu, and L. Ruby Leung
Hydrol. Earth Syst. Sci., 26, 665–688, https://doi.org/10.5194/hess-26-665-2022,https://doi.org/10.5194/hess-26-665-2022, 2022
Short summary

Cited articles

Barbulescu, A.: A new method for estimation the regional precipitation, Water Resour. Manage., 30, 33–42, https://doi.org/10.1007/s11269-015-1152-2, 2016. 
Bates, P. D.: Flood inundation prediction, Annu. Rev. Fluid Mech., 54, 287–315, https://doi.org/10.1146/annurev-fluid-030121-113138, 2022. 
Bhola, P. K., Leandro, J., and Disse, M.: Framework for offline flood inundation forecasts for two-dimensional hydrodynamic models, Geosciences, 8, 346, https://doi.org/10.3390/geosciences8090346, 2018. 
Blackmarr, W.: Documentation of hydrologic, geomorphic, and sediment transport measurements on the Goodwin Creek experimental watershed, northern Mississippi, for the period 1982–1993, Technical Report for United States Department of Agriculture, Oxford, MS, USA, 1995. 
Bomers, A., Schielen, R. M. J., and Hulscher, S. J. M. H.: The influence of grid shape and grid size on hydraulic river modelling performance, Environ. Fluid Mech., 19, 1273–1294, https://doi.org/10.1007/s10652-019-09670-4, 2019. 
Download
Short summary
We present an improved Multigrid Dynamical Bidirectional Coupled hydrologic–hydrodynamic Model (IM-DBCM) with two major improvements: (1) automated non-uniform mesh generation based on the D-infinity algorithm was implemented to identify flood-prone areas where high-resolution inundation conditions are needed, and (2) ghost cells and bilinear interpolation were implemented to improve numerical accuracy in interpolating variables between the coarse and fine grids. The improved model was reliable.
Share
Altmetrics
Final-revised paper
Preprint