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Article

Raspy-Cal: A Genetic Algorithm-Based Automatic Calibration Tool for HEC-RAS Hydraulic Models

1
Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO 80401, USA
2
Shiley School of Engineering, University of Portland, Portland, OR 97203, USA
3
Research Applications Laboratory, National Center for Atmospheric Research, Boulder, CO 80305, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Giuseppe Pezzinga
Water 2021, 13(21), 3061; https://doi.org/10.3390/w13213061
Received: 27 September 2021 / Revised: 29 October 2021 / Accepted: 31 October 2021 / Published: 2 November 2021
(This article belongs to the Section Hydraulics and Hydrodynamics)
While automatic calibration programs exist for many hydraulic models, no user-friendly and broadly reusable automatic calibration system currently exists for steady-state HEC-RAS models. This study highlights development of Raspy-Cal, an automatic HEC-RAS calibration program based on a genetic algorithm and implemented in Python. It includes a graphical user interface and an interactive command-line interface, as well as libraries readily usable by other programs. As a case study, Raspy-Cal was used to calibrate a model of the Los Angeles River in California and its two major tributaries. We found that Raspy-Cal matched the accuracy of manual calibrations in much less time and without manual intervention, producing a Nash–Sutcliffe Efficiency of 0.89 or greater within several hours when run for 100 iterations. Our analysis showed that the open-source freeware facilitates fast and precise calibration of HEC-RAS models and could serve as a basis for future software development. Raspy-Cal is available online in source and executable form as well as through the Python Package Index. View Full-Text
Keywords: hydraulic modeling; autocalibration; genetic algorithm; optimization; HEC-RAS hydraulic modeling; autocalibration; genetic algorithm; optimization; HEC-RAS
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MDPI and ACS Style

Philippus, D.; Wolfand, J.M.; Abdi, R.; Hogue, T.S. Raspy-Cal: A Genetic Algorithm-Based Automatic Calibration Tool for HEC-RAS Hydraulic Models. Water 2021, 13, 3061. https://doi.org/10.3390/w13213061

AMA Style

Philippus D, Wolfand JM, Abdi R, Hogue TS. Raspy-Cal: A Genetic Algorithm-Based Automatic Calibration Tool for HEC-RAS Hydraulic Models. Water. 2021; 13(21):3061. https://doi.org/10.3390/w13213061

Chicago/Turabian Style

Philippus, Daniel, Jordyn M. Wolfand, Reza Abdi, and Terri S. Hogue. 2021. "Raspy-Cal: A Genetic Algorithm-Based Automatic Calibration Tool for HEC-RAS Hydraulic Models" Water 13, no. 21: 3061. https://doi.org/10.3390/w13213061

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