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Die Parametrisierung der atmosphärischen Gegenstrahlung im Ostalpenraum

The parametrization of the atmospheric back-radiation in the eastern alpine regions

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Zusammenfassung

Es werden mehrere Modelle zur Parametrisierung der atmosphärischen Gegenstrahlung untersucht und auf ihre Eignung für die Verhältnisse des Ostalpenraumes hin geprüft. Es zeigte sich, daß eine Berechnung der Gegenstrahlung über die Ausstrahlung eines schwarzen Körpers bei der Temperatur am Meßort die besten Ergebnisse brachte. Über oder in unmittelbarer Nähe von Gewässern jedoch erzielte eine Beziehung, die die relative Luftfeuchte dem scheinbaren Emissionsvermögen der Atmosphäre zuordnete, gegenüber der ersten Methode geringfügig bessere Resultate.

Summary

Several models parametrizing the atmospheric back-radiation are presented and tested for their applicability in the eastern Alpine Regions. It is shown that the calculation of the back-radiation using the black body radiation with temperature on the station gives the best results in comparison with other parametrization formulas. However, above a natural water surfaces or at lake shores a relationship applying the relative humidity of air in the evaluation of the emissivity of the atmosphere achieved the best approximations.

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Author notes

  1. H. Dobesch

    Present address: Zentralanstalt für Meterologie und Geodynamik, Hhhe Warte 38, A-1190, Wien, österreich

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    1. H. Dobesch
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    Dobesch, H. Die Parametrisierung der atmosphärischen Gegenstrahlung im Ostalpenraum. Arch. Met. Geoph. Biokl. B. 28, 365–371 (1980). https://doi.org/10.1007/BF02352273

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    • DOI: https://doi.org/10.1007/BF02352273

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