Sensitivity of the agrometeorological model AMBETI / BEKLIMA to modified meteorological boundary conditions

Author: Braden, Harald

Source: Meteorologische Zeitschrift, Volume 20, Number 5, October 2011 , pp. 471-477(7)

Publisher: E. Schweizerbart'sche Verlagsbuchhandlung

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The model AMBETI/BEKLIMA was run with measured meteorological boundary conditions on one hand and with modified meteorological data on the other hand. The comparison of the computations shows the model's sensitivity to the respective meteorological data. The target variables are: soil temperatures, minimum air temperatures near to the ground, canopy temperatures, leaf wetness duration, evaporation components, duration of snow covers and topsoil humidity. The modified boundary conditions are: air temperature and humidity, global radiation and incident long-wave radiation. The results inform about the impact of trends as well as uncertainties in the forecasted climate data on the agrometeorological quantities.

Mit dem Modell AMBETI/BEKLIMA wurden Rechnungen einerseits mit gemessenen und andererseits mit modifizierten meteorologischen Randbedingungen durchgeführt. Vergleiche der jeweils berechneten Modellergebnisse zeigen die Sensitivität des Modells für meteorologische Randbedingungen an. Zielgrößen sind dabei Bodentemperaturen, bodennahe Minimumtemperatur, Bestandstemperatur, Blattbenetzungsdauer, Verdunstungskomponenten, sowie Dauer der Schneebedeckung und Krumenbodenfeuchte. Die modifizierten Randbedingungen sind Lufttemperatur und -feuchte, Globalstrahlung und langwellige Gegenstrahlung. Die Ergebnisse erlauben Aussagen über den Einfluss sowohl von Unsicherheiten der vorhergesagten Klimadaten als auch von deren Trends auf agrarmeteorologische Zielgrößen.

Document Type: Research Article


Publication date: October 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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