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| Titel |
Uniqueness of place and process representations in hydrological modelling |
| VerfasserIn |
K. J. Beven  |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 4, no. 2 ; Nr. 4, no. 2, S.203-213 |
| Datensatznummer |
250001628
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| Publikation (Nr.) |
 copernicus.org/hess-4-203-2000.pdf |
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| Zusammenfassung |
| This paper addresses the problem of uniqueness of catchment areas
in relation to model representations of flow processes. The uniqueness of field
measurements as a limitation on model representations is discussed. The
treatment of uniqueness as a residual from a modelled relationship may conceal
information about the uniqueness of catchments, while the treatment of
uniqueness as a set of parameter values within a particular model structure is
problematic due to the equifinality of model structures and parameter sets. The
analysis suggests that a fully reductionist approach to describe the uniqueness
of individual catchment areas by the aggregation of descriptions of small scale
behaviour will be impossible given current measurement technologies. A suggested
strategy for the representation of uniqueness of place as a fuzzy mapping of the
landscape into a model space is suggested. This will lead to a quantification of
the uncertainty in predictions of any particular location in a way that allows a
conditioning of the mapping on the basis of the available data. This process can
incorporate a hypothesis testing approach to model evaluation but the problem of
multiple behavioural models may provide an ultimate limitation on the realism of
process representations: not on the principle of realism but on the possibility
of unambiguous process representations. |
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