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First experiences of the operational use of a dual-polarisation weather radar in Finland

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Many national weather services are currently bringing dual-polarisation radars into operational use, after three decades of its use in research. In Finland, three systems are already running operationally, and the data are integrated into the national weather service infrastructure. This opens up new possibilities for applications, but also sets new challenges for measurement design. Our solution has been to alternate measurements optimized for dual-polarisation with another set of measurements optimized for the best quality of Doppler velocity data. This paper describes how the new measurement schedule was designed, balancing between the different needs of the end-users. Our experience after a few months of usage is illustrated with three case studies in weather situations typical of the Finnish climate

Viele nationale Wetterdienste haben damit begonnen, polarimetrische Wetterradargeräte in Betrieb zu nehmen, nachdem sie drei Jahrzehnte lang zu Forschugszwecken eingesetzt worden waren. In Finnland werden bereits drei Systeme im Routinebetrieb verwendet, und sie sind fest in die Infrastruktur des nationalen Beobachtungsnetzes integriert. Dies ermöglicht neue Anwendungsgebiete, stellt aber auch neue Anforderungen an die Planung der Messungen. Wir entschieden uns, die für polarimetrische Radargeräte optimierten Messungen alternierend mit solchen durchzuführen, die die beste Qualität für Doppler Geschwindigkeitsmessungen versprechen. Diese Veröffentlichung beschreibt das Design des neuen Messplans, der die unterschiedlichen Bedürfnisse der Endbenutzer miteinander in Einklang bringt. Unsere Erfahrung nach einigen Monaten Betrieb ist an Hand von drei Fallstudien dargestellt, die für Finnland typische Wettersituationen widerspiegeln.

Document Type: Research Article

DOI: http://dx.doi.org/10.1127/0941-2948/2011/0197

Publication date: June 1, 2011

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  • Meteorologische Zeitschrift (originally founded in 1866) is the joint periodical of the meteorological societies of Austria, Germany and Switzerland. It accepts high-quality peer-reviewed manuscripts on all aspects of observational, theoretical and computational research out of the entire field of meteorology, including climatology. Meteorologische Zeitschrift represents a natural forum for the meteorological community of Central Europe and worldwide.
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