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Analysis of conceptual rainfall-runoff modelling performance in different climates
SMHI, Research Department, Hydrology.
SMHI.
2000 (English)In: Journal of Hydrology, ISSN 0022-1694, E-ISSN 1879-2707, Vol. 238, no 3-4, 231-247 p.Article in journal (Refereed) Published
Abstract [en]

With the objective of studying conceptual rainfall-runoff modelling performance in different climates, the HBV-96 model was applied on four catchments located in Europe, Africa and South America. Manual, automatic and Monte Carlo techniques were used for model calibration and parameter analyses. It was found that the magnitude of the water balance components had a significant influence on model performance. Performance decreased and demands of calibration period length increased with increased catchment dryness primarily because of a neater water balance and higher climatic variability in drier areas. A large degree of equifinality was discovered in all catchments where different calibration methods yielded equally good results but with different parameter combinations. Thus, it may be impossible to know if an optimum parameter set exists and to relate parameter values to physical properties of the catchment. On the other hand the validation results indicated that it might not matter if parameter values were not unique when studying runoff solely, provided the model application is within the same regime of flows. (C) 2000 Elsevier Science B.V. AU rights reserved.

Place, publisher, year, edition, pages
2000. Vol. 238, no 3-4, 231-247 p.
Keyword [en]
conceptual rainfall-runoff modelling, climate, calibration, Monte Carlo simulation
National Category
Oceanography, Hydrology, Water Resources
Research subject
Hydrology
Identifiers
URN: urn:nbn:se:smhi:diva-1496DOI: 10.1016/S0022-1694(00)00330-9ISI: 000165525000006OAI: oai:DiVA.org:smhi-1496DiVA: diva2:848075
Available from: 2015-08-24 Created: 2015-08-17 Last updated: 2016-01-25Bibliographically approved

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Citation style
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