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Regionalisation of Air-Mass and Frontal Precipitation Occurrence in Europe

  • Ewa Łupikasza
Chapter
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Part of the Springer Atmospheric Sciences book series (SPRINGERATMO)

Abstract

Spatial and seasonal variability in precipitation-prone factors in Europe leads to a variable frequency of each origin-based extreme precipitation type. This chapter synthesises the results of the occurrence of each of these. Cluster analysis of k-means method and carefully selected grouping variables were used to identify six groups of stations (regional groups) in each season characterised by different patterns of occurrence of origin-based extreme precipitation types. A clear spatial order of their occurrence suggests an existence of regularities that govern the occurrence of origin-based precipitation types in Europe. Some of the groups involve scattered stations, but such distribution, far from random, is a result of specific local influences on the processes leading to the development of extreme precipitation and on their volume. In summer, air-mass precipitation dominates three regional groups in Sothern Europe. In the southernmost of them the air-mass type accounts for nearly 70 % of extreme precipitation. Precipitation associated with the passage of different fronts represents the largest proportion of extreme precipitation in winter, when cyclone travel reaches its highest speeds.

Keywords

Extreme precipitation Precipitation regions Cluster analysis precipitation types Europe 

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Ewa Łupikasza
    • 1
  1. 1.Faculty of Earth SciencesUniversity of SilesiaSosnowiecPoland

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