Articles | Volume 16, issue 14
Development and technical paper
28 Jul 2023
Development and technical paper |  | 28 Jul 2023

Recalibration of a three-dimensional water quality model with a newly developed autocalibration toolkit (EFDC-ACT v1.0.0): how much improvement will be achieved with a wider hydrological variability?

Chen Zhang and Tianyu Fu

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Cited articles

Adrian, R., O'Reilly, C. M., Zagarese, H., Baines, S. B., Hessen, D. O., Keller, W., Livingstone, D. M., Sommaruga, R., Straile, D., Van Donk, E., Weyhenmeyer, G. A., and Winder, M.: Lakes as sentinels of climate change, Limnol. Oceanogr., 54, 2283–2297,, 2009. 
Alexandrov, G. A., Ames, D., Bellocchi, G., Bruen, M., Crout, N., Erechtchoukova, M., Hildebrandt, A., Hoffman, F., Jackisch, C., Khaiter, P., Mannina, G., Matsunaga, T., Purucker, S. T., Rivington, M., and Samaniego, L.: Technical assessment and evaluation of environmental models and software: Letter to the Editor, Environ. Modell. Softw., 26, 328–336,, 2011. 
Arhonditsis, G. and Brett, M.: Evaluation of the current state of mechanistic aquatic biogeochemical modeling, Mar. Ecol. Prog. Ser., 271, 13–26,, 2004. 
Arhonditsis, G. B., Qian, S. S., Stow, C. A., Lamon, E. C., and Reckhow, K. H.: Eutrophication risk assessment using Bayesian calibration of process-based models: Application to a mesotrophic lake, Ecol. Model., 208, 215–229,, 2007. 
Arifin, R. R., James, S. C., de Alwis Pitts, D. A., Hamlet, A. F., Sharma, A., and Fernando, H. J. S.: Simulating the thermal behavior in Lake Ontario using EFDC, J. Gt. Lakes Res., 42, 511–523,, 2016. 
Short summary
A new automatic calibration toolkit was developed and implemented into the recalibration of a 3-D water quality model, with observations in a wider range of hydrological variability. Compared to the model calibrated with the original strategy, the recalibrated model performed significantly better in modeled total phosphorus, chlorophyll a, and dissolved oxygen. Our work indicates that hydrological variability in the calibration periods has a non-negligible impact on the water quality models.