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Gharari, Shervan (author), Gupta, Hoshin V. (author), Clark, Martyn P. (author), Hrachowitz, M. (author), Fenicia, Fabrizio (author), Matgen, Patrick (author), Savenije, Hubert (author)Process-based hydrological models seek to represent the dominant hydrological processes in a catchment. However, due to unavoidable incompleteness of knowledge, the construction of “fidelius” process-based models depends largely on expert judgment. We present a systematic approach that treats models as hierarchical assemblages of hypotheses ...journal article 2021
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Gao, H. (author), Hrachowitz, M. (author), Sriwongsitanon, Nutchanart (author), Fenicia, F. (author), Gharari, S. (author), Savenije, Hubert (author)Understanding which catchment characteristics dominate hydrologic response and how to take them into account remains a challenge in hydrological modeling, particularly in ungauged basins. This is even more so in nontemperate and nonhumid catchments, where—due to the combination of seasonality and the occurrence of dry spells—threshold processes...journal article 2016
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- Gao, H. (author), Hrachowitz, M. (author), Fenicia, F.F. (author), Gharari, S. (author), Sriwongsitanon, N. (author), Savenije, H.H.G. (author) journal article 2015
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- Hrachowitz, M. (author), Fovet, O. (author), Ruiz, L. (author), Euser, T. (author), Gharari, S. (author), Nijzink, R.C. (author), Savenije, H.H.G. (author), Gascuel-Odoux, C. (author) journal article 2015
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Gharari, S. (author), Shafiei, M. (author), Hrachowitz, M. (author), Kumar, R. (author), Fenicia, F. (author), Gupta, H.V. (author), Savenije, H.H.G. (author)Many environmental systems models, such as conceptual rainfall-runoff models, rely on model calibration for parameter identification. For this, an observed output time series (such as runoff) is needed, but frequently not available (e.g., when making predictions in ungauged basins). In this study, we provide an alternative approach for parameter...journal article 2014
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Gharari, S. (author), Hrachowitz, M. (author), Fenicia, F. (author), Gao, H. (author), Savenije, H.H.G. (author)Conceptual environmental system models, such as rainfall runoff models, generally rely on calibration for parameter identification. Increasing complexity of this type of models for better representation of hydrological process heterogeneity, typically makes parameter identification more difficult. Although various, potentially valuable,...journal article 2014
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Hrachowitz, M. (author), Fovet, O. (author), Ruiz, L. (author), Euser, T. (author), Gharari, S. (author), Nijzink, R. (author), Freer, J. (author), Savenije, H.H.G. (author), Gascuel-Odoux, C. (author)Hydrological models frequently suffer from limited predictive power despite adequate calibration performances. This can indicate insufficient representations of the underlying processes. Thus, ways are sought to increase model consistency while satisfying the contrasting priorities of increased model complexity and limited equifinality. In this...journal article 2014
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Gao, H. (author), Hrachowitz, M. (author), Fenicia, F.F. (author), Gharari, S. (author), Savenije, H.H.G. (author)Although elevation data are globally available and used in many existing hydrological models, their information content is still underexploited. Topography is closely related to geology, soil, climate and land cover. As a result, it may reflect the dominant hydrological processes in a catchment. In this study, we evaluated this hypothesis...journal article 2014
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Gharari, S. (author), Shafiei, M. (author), Hrachowitz, M. (author), Fenicia, F. (author), Gupta, H.V. (author), Savenije, H.H.G. (author)Many environmental systems models, such as conceptual rainfall-runoff models, rely on model calibration for parameter identification. For this, an observed output time series (such as runoff) is needed, but frequently not available. Here, we explore another way to constrain the parameter values of semi-distributed conceptual models, based on two...journal article 2013
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Gharari, S. (author), Hrachowitz, M. (author), Fenecia, F. (author), Gao, H. (author), Savenije, H.H.G. (author)Conceptual environmental systems models, such as rainfall runoff models, generally rely on calibration for parameter identification. Increasing complexity of this type of model for better representation of hydrological process heterogeneity typically makes parameter identification more difficult. Although various, potentially valuable,...journal article 2013
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- Gao, H. (author), Hrachowitz, M. (author), Fenicia, F.F. (author), Gharari, S. (author), Savenije, H.H.G. (author) journal article 2013
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Gharari, S. (author), Hrachowitz, M. (author), Fenicia, F. (author), Savenije, H.H.G. (author)Conceptual hydrological models rely on calibration for the identification of their parameters. As these models are typically designed to reflect real catchment processes, a key objective of an appropriate calibration strategy is the determination of parameter sets that reflect a “realistic” model behavior. Previous studies have shown that...journal article 2013
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Gharari, S. (author), Hrachowitz, M. (author), Fenicia, F. (author), Savenije, H.H.G. (author)Conceptual hydrological models often rely on calibration for the identification of their parameters. As these models are typically designed to reflect real catchment processes, a key objective of an appropriate calibration strategy is the determination of parameter sets that reflect a “realistic” model behavior. Previous studies have shown that...journal article 2012
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Gharari, S. (author), Hrachowitz, M. (author), Fenicia, F. (author), Savenije, H.G. (author)This paper presents a detailed performance and sensitivity analysis of a recently developed hydrological landscape classification method based on dominant runoff mechanisms. Three landscape classes are distinguished: wetland, hillslope and plateau, corresponding to three dominant hydrological regimes: saturation excess overland flow, storage...journal article 2011
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Gharari, S. (author), Fenicia, F. (author), Hrachowitz, M. (author), Savenije, H.H.G. (author)This paper presents a new type of hydrological landscape classification based on dominant runoff mechanisms. Three landscape classes are distinguished: wetland, hillslope and plateau, corresponding to three dominant hydrological regimes: saturation excess overland flow, storage excess sub-surface flow, and deep percolation. Topography, geology...journal article 2011