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Visual meteorological observations as indicators of climate changes, derived from long-term time series of the Potsdam station

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On the basis of the visual meteorological observations at the Potsdam station for the "type of precipitation" (period 1893–2000) and the "cloud coverage" (1894–2000) it is shown that such subjectively registered values have a strong connection with measured parameters. Moreover they reflect climate changes very well. A main result is the fact that in summer a clear decrease in advective precipitation can be observed combined with an increase in convective precipitation. This development is accompanied by a change in the daily course of the cloud cover.

Anhand der meteorologischen Augenbeobachtungen an der Station Potsdam fu¨r den Niederschlagstyp (Zeitraum 1893–2000) und den Bedeckungsgrad (1894–2000) wird gezeigt, dass solche subjektiv erfassten Gro¨ßen in enger Verbindung mit Messgro¨ßen stehen. Ausserdem spiegeln sie Klimaa¨nderungen gut wieder. Wichtigstes Ergebnis ist die Tatsache, dass im Sommer eine deutliche Abnahme des advektiven Niederschlags bei gleichzeitiger Zunahme des konvektiven Niederschlags beobachtet wird. Diese Entwicklung geht einher mit einer A¨nderung im Tagesgang der Bewo¨lkung.


Document Type: Short Communication


Publication date: 2003-01-01

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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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