izpis_h1_title_alt

Efficient calibration of a conceptual hydrological model based on the enhanced Gauss - Levenberg - Marquardt procedure
Vidmar, Andrej (Author), Brilly, Mitja (Author), Sapač, Klaudija (Author), Kryžanowski, Andrej (Author)

.pdfPDF - Presentation file, Download (2,34 MB)
MD5: E71E3E4E54401B19E56ED351251BBC2A
URLURL - Source URL, Visit https://www.mdpi.com/2076-3417/10/11/3841 This link opens in a new window

Abstract
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.

Language:English
Keywords:calibration model efficiency, PEST - parameter estimation tool, HBV-light, Gauss - Levenberg - Marquardt procedure, SVD, Tikhonov regularization, parallel computing
Work type:Scientific work (r2)
Tipology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2020
Number of pages:Str. 1-20
Numbering:Letn. 10, št. 11
UDC:556:004
ISSN on article:2076-3417
DOI:10.3390/app10113841 This link opens in a new window
COBISS.SI-ID:18190595 This link opens in a new window
Views:302
Downloads:262
Metadata:XML RDF-CHPDL DC-XML DC-RDF
 
Average score:(0 votes)
Your score:Voting is allowed only to logged in users.
:
Share:AddThis
AddThis uses cookies that require your consent. Edit consent...

Record is a part of a journal

Title:Applied sciences
Shortened title:Appl. sci.
Publisher:MDPI
ISSN:2076-3417
COBISS.SI-ID:522979353 This link opens in a new window

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:P2-0180
Name:Vodarstvo in geotehnika: orodja in metode za analize in simulacije procesov ter razvoj tehnologij.

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:16.06.2020

Secondary language

Language:Slovenian
Keywords:učinkovitost kalibracijskega modela, PEST, HBV-light, Gauss-Levenberg-Marquardt postopek, SVD, Tikhonova regularizacija, paralelno računanje, hidrologija

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Comments

Leave comment

You have to log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back