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Titel |
Precipitation classification at mid-latitudes in terms of drop size distribution parameters |
VerfasserIn |
C. Caracciolo, F. Porcú, F. Prodi |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1680-7340
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Digitales Dokument |
URL |
Erschienen |
In: Observation, Prediction and Verification of Precipitation (EGU Session 2007) ; Nr. 16 (2008-04-09), S.11-17 |
Datensatznummer |
250013065
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Publikation (Nr.) |
copernicus.org/adgeo-16-11-2008.pdf |
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Zusammenfassung |
The drop size distribution (DSD) is a fundamental property of rainfall
because the shape of the distribution reflects the physics of rain formation
processes. Given the lack of studies on the DSD at mid-latitudes, the
present work focuses on the microphysical characterization of precipitation
events occurring in Italy, using two different types of disdrometer. A large
number of different rain events was collected: they underwent microphysical
analysis by computing the Z-R relationships, observing the average DSDs and
DSD parameters, fitting the real distribution for different rainfall rate
categories and applying convective (C) – stratiform (S) discrimination
algorithms. A general agreement with past works at mid-latitudes is found
both in the Z-R relationship and in DSD parameters. The rain distribution is
well described by a gamma DSD and only in some cases (especially the light
rain events) by an exponential DSD. Marked differences are observed in DSD
parameters and Z-R relationships between C and S episodes. The use of
disdrometers for areas covered by multiparametric radar is suggested and
will be performed in the near future. |
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