Efficient calibration of a conceptual hydrological model based on the enhanced Gauss–Levenberg–Marquardt procedure

Vidmar, Andrej (avtor), Brilly, Mitja (avtor), Lebar, Klaudija (avtor), Kryžanowski, Andrej (avtor)

Various models were developed in the past to simulate different hydrological processes. However, discrepancies between simulated and observed values are still significant and pose a challenge to many researchers. Models contain many parameters that cannot be directly measured. The values of most of these parameters are determined in the calibration process conditioning the efficiency of such models. This paper introduces the use of the enhanced Gauss–Levenberg–Marquardt (GLM) procedure in combination with the singular value decomposition (SVD) and Tikhonov regularization to improve the process of hydrological model calibration. The procedure is tested on a freely available hydrological model using a synthetic dataset. Based on several efficiency measures, the GLM procedure, in combination with SVD and Tikhonov regularization, was found to provide efficient model history matching and almost perfect parameter calibration. Moreover, by comparing the results of the proposed procedure with the results of global evolutionary calibration procedures, it was found that the only calibration using the combined GLM procedure gave a perfect fit in low flows. Last but not least, the noise in the calculation results with the combined GLM method was practically the same in either the calibration or validation procedure, suggesting that only computational noise remained in the results.

• Jezik: Angleški jezik
• Ključne besede: calibration model efficiency, Parameter Estimation Tool (PEST), HBV-light, Gauss–Levenberg–Marquardt procedure, SVD, Tikhonov regularization, parallel computing
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2020
• Št. strani: 20 str.
• Številčenje: Vol. 10, iss. 11, art. 3841
• PID: 20.500.12556/RUL-116916
• UDK: 556:004
• ISSN pri članku: 2076-3417
• DOI: 10.3390/app10113841
• COBISS.SI-ID: 18190595
• Datum objave v RUL: 16.06.2020

Gradivo je del revije

• Naslov: Applied sciences
• Skrajšan naslov: Appl. sci.
• Založnik: MDPI
• ISSN: 2076-3417
• COBISS.SI-ID: 522979353

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 01.06.2020

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: učinkovitost kalibracijskega modela, PEST, HBV-light, Gauss-Levenberg-Marquardt postopek, SVD, Tikhonova regularizacija, paralelno računanje, hidrologija

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0180
• Naslov: Vodarstvo in geotehnika: orodja in metode za analize in simulacije procesov ter razvoj tehnologij