I am using Qual2kw software in my research work for water quality modelling.I am not able to understand how to calibrate model either use VBA or fortran programme with giving weight and fitness or run autoclibration. How much time is taken to run autoclibrate programme?
Help me
Thank You
Hiral patel
Respected Sir/madam
refer this material which is very helpful to your research Article Water Quality Model for Streams: A Review
Dear Hiral Patel , When manually calibrating a water quality model, considerabletime and attention are required to calibrate each water quality variable and modelparameter.Hence, developingan automated modelthatallows for efficient and objective automatic calibrationis highly desirable. The QUAL2Kwmodelcalibrates the QUAL2K model automatically using a genetic algorithm (GA). As the calibration results of a GA vary stronglywiththe performance criteria used as the objective function inGA optimization problems, this study compares and analyzes auto-calibration results and selects the optimal criterion for each objective from among6 performance criteria:CV(RMSE),R², NSE, PBIAS, RSR, and SSNR. Please read it: https://easychair.org/publications/open/5T63
Read also here: In this study, auto-calibration method for water quality model was compared and analyzed using QUAL2Kw, which can estimate the optimum parameters through the integration of genetic algorithm and QUAL2K. The QUAL2Kw was applied to the Sum River which is greatly affected by the pollution loads of Wonju city. Two auto-calibration methods were examined: single parameter application for the whole river reach and separate parameter application for each reach of multiple reaches. The analysis about CV(RMSE) and fitness of the GA show that the separate parameter auto-calibration method is better than the single parameter method in the degree of precision. Article Comparative analysis of auto-calibration methods using QUAL2...
The model was run until the system parameters were appropriately adjusted and the reasonable agreement between model results and field measurements was achieved. In order to test the ability of the calibrated model to predict water quality under different conditions, the model was run using a different set of water quality data taken on the first set, and one more data set taken on for validation.
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