The National Institute of Environmental Research (NIER) has improved the Environmental Fluid Dynamic Code (EFDC) source code (version 20100328) released by Dynamic Solutions International (https://www.ds-intl.biz). Based on this, a new source code, known as EFDC-NIER, can simulate the vertical migration mechanisms of multiple algal species and cyanobacteria. Along with the vertical migration mechanisms of multiple algal species and cyanobacteria, new parameters are added to the EFDC-NIER model. As the phytoplankton functional group (PFG) concept is adopted, a method to predict Microcystis spp. cell count and parameter calibrations is required. The existing parameter calibration processes for water quality modeling are labor-intensive and time consuming, as the calibration depends on each user’s experience, and require repeated manual changes to the parameters of the model. Such manual calibration tends to aggravate the uncertainty in the modeling results. Therefore, this study adopted the Latin-Hypercube One-factor-At-a-Time (LH-OAT) method to construct model sets for parameter calibration. A graphical user interface (GUI) system was also developed for automatic model parameter set configuration, model construction, and modeling, with suggestions for optimal parameters based on the simulation results. The proposed method and tools reported in this study will be useful to determine an optimal parameter interval and values to predict the cell counts of harmful cyanobacteria, such as Microcystis spp.
Optimized Microcystis Prediction Model Using EFDC-NIER and LH-OAT Method
KSCE J Civ Eng
KSCE Journal of Civil Engineering ; 27 , 3 ; 1066-1076
2023-03-01
11 pages
Article (Journal)
Electronic Resource
English
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