Universität zu Köln

Gomara, Inigo ORCID: 0000-0001-8721-0307, Rodriguez-Fonseca, Belen ORCID: 0000-0002-5261-7083, Zurita-Gotor, Pablo ORCID: 0000-0002-6873-7645 and Pinto, Joaquim G. (2014). On the relation between explosive cyclones affecting Europe and the North Atlantic Oscillation. Geophys. Res. Lett., 41 (6). S. 2182 - 2191. WASHINGTON: AMER GEOPHYSICAL UNION. ISSN 1944-8007

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Abstract

Intense winter cyclones often lead to hazardous weather over Europe. Previous studies have pointed to a link between the North Atlantic Oscillation (NAO) and strong European windstorms. However, the robustness of this relation for cyclones of varying intensities remains largely unexplored. In this paper, the bi-directional relation between the NAO and cyclones impacting Europe is analyzed for the period 1950-2010 focusing on the sensitivity to storm intensity. Evidence is given that explosive (EC) and non-explosive cyclones (NoEC) predominantly develop under different large-scale circulation conditions over the North Atlantic. Whereas NoEC evolve more frequently under negative and neutral NAO phases, the number of EC is larger under a positive NAO phase, typically characterized by an intensified jet toward Western Europe. Important differences are also found on the dynamics of NAO evolution after peak intensity for both cyclone populations.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Gomara, Inigo UNSPECIFIED orcid.org/0000-0001-8721-0307 UNSPECIFIED Rodriguez-Fonseca, Belen UNSPECIFIED orcid.org/0000-0002-5261-7083 UNSPECIFIED Zurita-Gotor, Pablo UNSPECIFIED orcid.org/0000-0002-6873-7645 UNSPECIFIED Pinto, Joaquim G. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-443077
DOI:	10.1002/2014GL059647
Journal or Publication Title:	Geophys. Res. Lett.
Volume:	41
Number:	6
Page Range:	S. 2182 - 2191
Date:	2014
Publisher:	AMER GEOPHYSICAL UNION
Place of Publication:	WASHINGTON
ISSN:	1944-8007
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CLIMATOLOGY; PRECURSORS; RESPECT Multiple languages Geosciences, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/44307