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| Titel |
Imperfect scaling in distributions of radar-derived rainfall fields |
| VerfasserIn |
M. J. Berg, L. Delobbe, 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 ; 18, no. 12 ; Nr. 18, no. 12 (2014-12-19), S.5331-5344 |
| Datensatznummer |
250120573
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| Publikation (Nr.) |
 copernicus.org/hess-18-5331-2014.pdf |
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| Zusammenfassung |
| Fine-scale rainfall observations for modelling exercises are often not
available, but rather coarser data derived from a variety of sources are
used. Effectively using these data sources in models often requires the
probability distribution of the data at the applicable scale. Although
numerous models for scaling distributions exist, these are often based on
theoretical developments, rather than on data. In this study, we develop a
model based on the α-stable distribution of rainfall fields, and
tested on 5 min radar data from a Belgian weather radar. We use these data
to estimate functions that describe parameters of the distribution over
various scales. Moreover, we study how the mean of the distribution and the
intermittency change with scale, and validate and design functions to
describe the shape parameter of the distribution. This information was
combined into an effective model of the distribution. |
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