Monitoring of mesoscale precipitation systems in the Alps and the northern Alpine foreland by radar and rain gauges

Martin Hagen, Hans Heinrich Schiesser, Manfred Dorninger

Publications: Contribution to journalArticlePeer Reviewed

Abstract

Mesoscale convective precipitation systems in the Alpine region are studied by analyzing radar and rain gauge data. The data from weather radars in Austria, France, Germany, and Switzerland are combined into a composite. Availability of radar data restricts the study mainly to the northern part of the Alpine region. Mesoscale convective systems (MCS) occur often in this region and are comparable to large systems observed in the USA. Seven precipitation events lasting one to six days from the years 1992-1996 are examined in detail. They all moved west to east and showed no diurnal preference in formation or dissipation. They reach sizes of 2 - 6 ž 104km2. MCS with leading-line trailing-stratiform structure tended to be larger and more intense. A 25-year set of rain gauge data indicates that a giant MCS (covering more than 4 ž 104km2 with more than 30 mm/day) occurs every 6 years in the northern Alpine region. MCS occur more frequently in the southern Alpine region.
Original languageEnglish
Pages (from-to)87-100
Number of pages14
JournalMeteorology and Atmospheric Physics
Volume72
Issue number2-4
Publication statusPublished - 2000

Austrian Fields of Science 2012

  • 105206 Meteorology

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