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| Titel |
Copula-based downscaling of spatial rainfall: a proof of concept |
| VerfasserIn |
M. J. Berg, S. Vandenberghe, B. Baets, N. E. C. Verhoest |
| 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 ; 15, no. 5 ; Nr. 15, no. 5 (2011-05-11), S.1445-1457 |
| Datensatznummer |
250012780
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| Publikation (Nr.) |
 copernicus.org/hess-15-1445-2011.pdf |
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| Zusammenfassung |
| Fine-scale rainfall data is important for many hydrological applications.
However, often the only data available is at a coarse scale. To bridge this
gap in resolution, stochastic disaggregation methods can be used. Such
methods generally assume that the distribution of the field is stationary,
i.e. the distribution for the entire (fine-scale) field is the same as the
distribution of a smaller region within the field. This assumption is
generally incorrect and we provide a proof of concept of a method to estimate
the distribution of a smaller region. In this method, a copula is used to
construct a bivariate distribution describing the relation between the
scales. This distribution is then used to estimate the distribution of the
fine-scale rainfall within a single coarse-scale pixel, by conditioning on
the coarse-scale rainfall depth. |
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