Analysis of the Relative Importance of Model Parameters in Watersheds with Different Hydrological Regimes
Depending on the purpose of the study, aggregated hydrological models are preferred over distributed models because they provide acceptable results in terms of precision and are easy to run, especially in data scarcity scenarios. To obtain acceptable results in terms of hydrological process represen...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/12/9/2376 |
| _version_ | 1797555827413876736 |
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| author | Yelena Medina Enrique Muñoz |
| author_facet | Yelena Medina Enrique Muñoz |
| author_sort | Yelena Medina |
| collection | DOAJ |
| description | Depending on the purpose of the study, aggregated hydrological models are preferred over distributed models because they provide acceptable results in terms of precision and are easy to run, especially in data scarcity scenarios. To obtain acceptable results in terms of hydrological process representativeness, it is necessary to understand and assess the models. In this study, the relative importance of the parameters of the Hydrologiska Byråns Vattenbalansavdelning (HBV) model is analyzed using sensitivity analysis to detect if the simulated processes represent the predominant hydrological processes at watershed scale. As a case study, four watersheds with different hydrological regimes (glacial and pluvial) and therefore different dominant processes are analyzed. The results show that in the case of the rivers with a glacial regime, the model performance depends highly on the snow module parameters, while in the case of the rivers with a pluvial regime, the model is sensitive to the soil and evapotranspiration modules. The results are directly related to the hydrological regime, which indicates that the HBV model, complemented by sensitivity analysis, is capable of both detecting and representing hydrological processes at watershed scale. |
| first_indexed | 2024-03-10T16:53:10Z |
| format | Article |
| id | doaj.art-aa1bf3241adf4df99f1cf425f42ed886 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T16:53:10Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-aa1bf3241adf4df99f1cf425f42ed8862023-11-20T11:14:32ZengMDPI AGWater2073-44412020-08-01129237610.3390/w12092376Analysis of the Relative Importance of Model Parameters in Watersheds with Different Hydrological RegimesYelena Medina0Enrique Muñoz1Department of Civil Engineering, Universidad Católica de la Santísima Concepción, Concepción 4090541, ChileDepartment of Civil Engineering, Universidad Católica de la Santísima Concepción, Concepción 4090541, ChileDepending on the purpose of the study, aggregated hydrological models are preferred over distributed models because they provide acceptable results in terms of precision and are easy to run, especially in data scarcity scenarios. To obtain acceptable results in terms of hydrological process representativeness, it is necessary to understand and assess the models. In this study, the relative importance of the parameters of the Hydrologiska Byråns Vattenbalansavdelning (HBV) model is analyzed using sensitivity analysis to detect if the simulated processes represent the predominant hydrological processes at watershed scale. As a case study, four watersheds with different hydrological regimes (glacial and pluvial) and therefore different dominant processes are analyzed. The results show that in the case of the rivers with a glacial regime, the model performance depends highly on the snow module parameters, while in the case of the rivers with a pluvial regime, the model is sensitive to the soil and evapotranspiration modules. The results are directly related to the hydrological regime, which indicates that the HBV model, complemented by sensitivity analysis, is capable of both detecting and representing hydrological processes at watershed scale.https://www.mdpi.com/2073-4441/12/9/2376hydrological processes sensitivityhydrological modelsensitivity analysis |
| spellingShingle | Yelena Medina Enrique Muñoz Analysis of the Relative Importance of Model Parameters in Watersheds with Different Hydrological Regimes Water hydrological processes sensitivity hydrological model sensitivity analysis |
| title | Analysis of the Relative Importance of Model Parameters in Watersheds with Different Hydrological Regimes |
| title_full | Analysis of the Relative Importance of Model Parameters in Watersheds with Different Hydrological Regimes |
| title_fullStr | Analysis of the Relative Importance of Model Parameters in Watersheds with Different Hydrological Regimes |
| title_full_unstemmed | Analysis of the Relative Importance of Model Parameters in Watersheds with Different Hydrological Regimes |
| title_short | Analysis of the Relative Importance of Model Parameters in Watersheds with Different Hydrological Regimes |
| title_sort | analysis of the relative importance of model parameters in watersheds with different hydrological regimes |
| topic | hydrological processes sensitivity hydrological model sensitivity analysis |
| url | https://www.mdpi.com/2073-4441/12/9/2376 |
| work_keys_str_mv | AT yelenamedina analysisoftherelativeimportanceofmodelparametersinwatershedswithdifferenthydrologicalregimes AT enriquemunoz analysisoftherelativeimportanceofmodelparametersinwatershedswithdifferenthydrologicalregimes |