Automatic Calibration for CE-QUAL-W2 Model Using Improved Global-Best Harmony Search Algorithm

CE-QUAL-W2 is widely used for simulating hydrodynamics and water quality of the aquatic environments. Currently, the model calibration is mainly based on trial and error, and therefore it is subject to the knowledge and experience of users. The Particle Swarm Optimization (PSO) algorithm has been te...

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Vydáno v:Water (Basel) Ročník 13; číslo 16; s. 2308
Hlavní autoři: Shabani, Afshin, Zhang, Xiaodong, Chu, Xuefeng, Zheng, Haochi
Médium: Journal Article
Jazyk:angličtina
Vydáno: Basel MDPI AG 23.08.2021
Témata:
Algorithms
Calibration
hydrodynamics
Hydrology
Improvisation
lakes
North Dakota
Optimization
Precipitation
Radiation
Simulation
water
Water quality
Water temperature
Iran
United States > US
Devils Lake North Dakota
North Dakota
ISSN:2073-4441, 2073-4441
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Shrnutí:CE-QUAL-W2 is widely used for simulating hydrodynamics and water quality of the aquatic environments. Currently, the model calibration is mainly based on trial and error, and therefore it is subject to the knowledge and experience of users. The Particle Swarm Optimization (PSO) algorithm has been tested for automatic calibration of CE-QUAL-W2, but it has an issue of prematurely converging to a local optimum. In this study, we proposed an Improved Global-Best Harmony Search (IGHS) algorithm to automatically calibrate the CE-QUAL-W2 model to overcome these shortcomings. We tested the performance of the IGHS calibration method by simulating water temperature of Devils Lake, North Dakota, which agreed with field observations with R2 = 0.98, and RMSE = 1.23 and 0.77 °C for calibration (2008–2011) and validation (2011–2016) periods, respectively. The same comparison, but with the PSO-calibrated CE-QUAL-W2 model, produced R2 = 0.98 and Root Mean Squared Error (RMSE) = 1.33 and 0.91 °C. Between the two calibration methods, the CE-QUAL-W2 model calibrated by the IGHS method could lower the RMSE in water temperature simulation by approximately 7–15%.
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ISSN:2073-4441
2073-4441
DOI:10.3390/w13162308