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| Titel |
Analysis of highly accurate rain intensity measurements from a field test site |
| VerfasserIn |
L. G. Lanza, E. Vuerich, I. Gnecco |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Precipitation: Measurement, Climatology, Remote Sensing, and Modeling (EGU Session 2009) ; Nr. 25 (2010-03-09), S.37-44 |
| Datensatznummer |
250015734
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| Publikation (Nr.) |
 copernicus.org/adgeo-25-37-2010.pdf |
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| Zusammenfassung |
| In the course of the recent WMO international instrument
intercomparison in the field and the associated specific laboratory tests,
highly accurate rainfall intensity measurements have been collected and made
available for scientific investigation. The resulting high quality data set
(contemporary one-minute rainfall intensity data from 26 gauges based on
various measuring principles) constitutes an important resource to provide
insights into the expected behaviour of rain intensity gauges in operational
conditions and further useful information for National Meteorological
Services and other users. A few aspects of the analysis of one-minute
resolution rain intensity measurements are discussed in this paper, focusing
on the observed deviations from a calculated reference intensity based on
four pit gauges. Results from both catching and non-catching type gauges are
discussed in relation with suitable tolerance limits obtained as a
combination of the estimated uncertainty of the reference intensity and the
WMO accuracy limits for rainfall intensity measurements. It is shown that
suitably post-processed weighing gauges and tipping-bucket rain gauges had
acceptable performance, while none of the non-catching rain gauges agreed
well with the reference. |
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