Beitrag
Towards nowcasting of winter precipitation: The Black Ice Event in Berlin 2014
Trömel, Silke; Ryzhkov, Alexander V.; Bick, Theresa; Mühlbauer, Kai; Simmer, Clemens
Meteorologische Zeitschrift Vol. 26 No. 2 (2017), p. 147 - 160
51 Literaturangaben
veröffentlicht: Apr 25, 2017
Online veröffentlicht: Jan 24, 2017
Manuskript akzeptiert: Oct 14, 2016
finale Ms. Revision erhalten: Oct 4, 2016
Manuskript-Revision angefordert: Jun 9, 2016
Manuskript erhalten: Jan 15, 2016
Open Access (Arbeit kann kostenlos heruntergeladen werden)
Abstract
Prediction of winter precipitation is challenging because besides its amount also its variable phase might have a strong impact on people, transportation, and infrastructure in general. We combine a bulk microphysics numerical weather prediction with a 1D spectral bin microphysical model, which explicitely treats the processes of melting, ice nucleation and refreezing as a first step towards a potential nowcasting application. Polarimetric weather radar observations from the German national meteorological service (DWD) are used to evaluate the approach. The potential of the strategy is demonstrated by its application to the black ice event occurring in Berlin, Germany, on 20 January 2014. The methodology is able to clearly identify the classical mechanism leading to freezing rain at the surface, which might be exploited in future nowcasting algorithms.
Schlagworte
Winter precipitation • radar polarimetry • nowcasting • spectral bin microphysical model