PEST modules with regularization for the acceleration of the automatic calibration in hydrodynamic models
| Autor: | Polomčić Dušan M., Bajić Dragoljub I., Močević Jelena M. |
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| Jazyk: | English<br />Serbian |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Tehnika, Vol 70, Iss 6, Pp 952-956 (2015) |
| Druh dokumentu: | article |
| ISSN: | 0040-2176 2560-3086 |
| DOI: | 10.5937/tehnika1506952P |
| Popis: | The calibration process of hydrodynamic model is done usually manually by 'testing' with different values of hydrogeological parameters and hydraulic characteristics of the boundary conditions. By using the PEST program, automatic calibration of models has been introduced, and it has proved to significantly reduce the subjective influence of the model creator on results. With the relatively new approach of PEST, i.e. with the introduction of so-called 'pilot points', the concept of homogeneous zones with parameter values of porous media or zones with the given boundary conditions has been outdated. However, the consequence of this kind of automatic calibration is that a significant amount of time is required to perform the calculation. The duration of calibration is measured in hours, sometimes even days. PEST contains two modules for the shortening of that process - Parallel PEST and BeoPEST. The paper presents performed experiments and analysis of different cases of PEST module usage, based on which the reduction in the time required to calibrate the model is done. |
| Databáze: | Directory of Open Access Journals |
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