Version 1
: Received: 26 January 2024 / Approved: 26 January 2024 / Online: 26 January 2024 (10:49:32 CET)
How to cite:
Lin, Y.; Lee, T. Block Kinematic Wave, A Novel Rainfall-Runoff Model For Small Urban Catchments. Preprints2024, 2024011892. https://doi.org/10.20944/preprints202401.1892.v1
Lin, Y.; Lee, T. Block Kinematic Wave, A Novel Rainfall-Runoff Model For Small Urban Catchments. Preprints 2024, 2024011892. https://doi.org/10.20944/preprints202401.1892.v1
Lin, Y.; Lee, T. Block Kinematic Wave, A Novel Rainfall-Runoff Model For Small Urban Catchments. Preprints2024, 2024011892. https://doi.org/10.20944/preprints202401.1892.v1
APA Style
Lin, Y., & Lee, T. (2024). Block Kinematic Wave, A Novel Rainfall-Runoff Model For Small Urban Catchments. Preprints. https://doi.org/10.20944/preprints202401.1892.v1
Chicago/Turabian Style
Lin, Y. and Tim-Hau Lee. 2024 "Block Kinematic Wave, A Novel Rainfall-Runoff Model For Small Urban Catchments" Preprints. https://doi.org/10.20944/preprints202401.1892.v1
Abstract
BKW is a highly efficient Storage Function-type rainfall-runoff model that utilizes the steady-state storage (S) and outflow (Q) of a catchment at different rainfall intensities as the S-Q relation of the catchment. For the inundation nowcasting of urban areas under high-intensity, short-duration rainfall, a Storage Function-type model is a judicious choice. However, S-Q hysteresis exists in the catchment S-Q relation, and BKW is unable to exhibit hysteresis due to assuming that the S-Q relation of a catchment is a nonlinear relation. The S-Q hysteresis can influence the outflow estimation of BKW, reducing the model's accuracy. Through the evaluation of analytical solutions, we found that the change in rainfall intensity dominates the S-Q relation of a catchment. The S-Q relation during a rainfall event is a dynamic process rather than a monotonic nonlinear relation. By applying the dynamic S-Q relation in BKW, we improved BKW to become a highly efficient and accurate rainfall-runoff model for small urban catchments.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
