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  Present and future atmospheric blocking and its impact on European mean and extreme climate

Sillmann, J., & Croci-Maspoli, M. (2009). Present and future atmospheric blocking and its impact on European mean and extreme climate. Geophysical Research Letters, 36: L10702. doi:10.1029/2009GL038259.

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 Urheber:
Sillmann, J.1, 2, Autor           
Croci-Maspoli, M., Autor
Affiliations:
1The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society, ou_913550              
2IMPRS on Earth System Modelling, MPI for Meteorology, Max Planck Society, ou_913547              

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 Zusammenfassung: Atmospheric blocking plays an important role in the mid-latitude climate variability and can be responsible for anomalous mean and/or extreme climate. In this study, a potential vorticity based blocking indicator is used to investigate the representation of Euro-Atlantic atmospheric blocking events in the ECHAM5/MPI-OM climate model. The impact of blocking events on present and future mean and extreme climate is studied by means of composite maps and correlation analyses. In comparison to ERA-40 re-analysis, the model represents the blocking frequency and seasonal distribution well. We show that European blocking events have a sustained influence particularly on anomalous cold winter temperatures in Europe. In a future climate, the blocking frequency is slightly diminished but the influence on the European winter climate remains robust. Due to a northeastward shift of the blocking pattern and an increase in maximum blocking duration, cold winter temperature extremes can still be expected in a future climate

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Sprache(n): eng - English
 Datum: 2009
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 360684
DOI: 10.1029/2009GL038259
 Art des Abschluß: -

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Titel: Geophysical Research Letters
  Alternativer Titel : Geophys. Res. Letts.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 36 Artikelnummer: L10702 Start- / Endseite: - Identifikator: -