publication . Article . 2007

Doppler radar observation, CG lightning activity and aerial survey of a multiple downburst in southern Germany on 23 March 2001

Dotzek, Nikolai; Lang, Peter; Hagen, Martin; Fehr, Thorsten; Hellmiss, Werner;
Open Access
  • Published: 01 Jan 2007 Journal: Atmospheric Research, volume 83, pages 519-533 (issn: 0169-8095, Copyright policy)
  • Publisher: Elsevier BV
  • Country: Germany
Abstract
Abstract Two downburst events from one thunderstorm are investigated, which occurred on 23 March 2001, in Germany's climatologic annual minimum of downburst activity. Observations by two Doppler radars are combined with hail reports, ground lightning detection and an aerial survey conducted after the event. The downburst-producing storm had formed at a synoptic convergence line within the warm sector of a cyclone. It had a remarkably high propagation speed of up to 31 m s − 1 corresponding to the mid-tropospheric flow. Thus, by superposition with the storm motion, even two weak downbursts were sufficient to cause the observed damage of F1 and F2 intensity, respe...
Subjects
free text keywords: Atmospheric Science, Physics, Atmospheric sciences, Severe weather, Thunderstorm, Downburst, Storm, Convective storm detection, Doppler radar, law.invention, law, Meteorology, Microburst, Lightning detection, Dynamik der Atmosphäre
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