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Verification scores for the operational GPCP-1DD product over the European Alps

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Abstract:

The Global Precipitation Climatology Project has provided, beginning October 2000, operational 1 degree/daily multi-satellite precipitation fields. Purpose of the present study is to verify this GPCP-1DD product with ground truth over the Alpine area. The surface fields for the verification were gained from 3100 daily rain gauge measurements operating during the European MAP project (June/July 1997). We compare the earlier experimental version of the GPCP-1DD with the present operational version. The latter is now free of systematic errors and can therefore be recommended as quantitative precipitation estimate on a monthly scale. On the daily scale, however, the operational precipitation pattern exhibits no better accuracy than already achieved by the experimental version.

Das Global Precipitation Climatology Project bietet seit Oktober 2000 operationelle, tägliche 1-Grad Niederschlagsfelder. In der vorliegenden Arbeit wird dieses Multi-Satellitenprodukt mit Ombrometermessungen über den Alpen verifiziert. Für die Bodenwahrheit wurden Werte von 3100 Stationen aus dem Europäischen MAP-Projekt (Juni/Juli 1997) analysiert. Wir vergleichen die frühere experimentelle Version des GPCP-1DD Produkts mit der operationellen Version. Diese ist jetzt frei von systematischen Fehlern und kann daher als quantitative Niederschlagsbestimmung auf der Monatsskala empfohlen werden. Allerdings ist die Genauigkeit der operationellen Niederschlagsfelder auf der Tagesskala nicht höher als die der experimentellen Version.

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Document Type: Research Article

DOI: http://dx.doi.org/10.1127/0941-2948/2002/0011-0367

Publication date: September 1, 2002

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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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