elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

Multimodel climate and variability of the stratosphere

Butchart, Neal und Charlton-Perez, A.J. und Cionni, Irene und Haynes, P.H. und Hardiman, S.C. und Krüger, K. und Kushner, P. und Newman, P.A. und Osprey, S.M. und Perlwitz, J. und Sigmond, M. und Wang, L. und et, al. und Dameris, Martin und Eyring, Veronika und Garny, Hella und Jöckel, Patrick (2011) Multimodel climate and variability of the stratosphere. Journal of Geophysical Research, 116 (D05102), Seiten 1-21. DOI: 10.1029/2010JD014995.

[img]
Vorschau
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
1MB

Offizielle URL: http://elib.dlr.de/70088/1/Butchart_et_al_2011.pdf

Kurzfassung

The stratospheric climate and variability from simulations of sixteen chemistryclimate models is evaluated. On average the polar night jet is well reproduced though its variability is less well reproduced with a large spread between models. Polar temperature biases are less than 5 K except in the Southern Hemisphere (SH) lower stratosphere in spring. The accumulated area of low temperatures responsible for polar stratospheric cloud formation is accurately reproduced for the Antarctic but underestimated for the Arctic. The shape and position of the polar vortex is well simulated, as is the tropical upwelling in the lower stratosphere. There is a wide model spread in the frequency of major sudden stratospheric warnings (SSWs), late biases in the breakup of the SH vortex, and a weak annual cycle in the zonal wind in the tropical upper stratosphere. Quantitatively, �metrics� indicate a wide spread in model performance for most diagnostics with systematic biases in many, and poorer performance in the SH than in the Northern Hemisphere (NH). Correlations were found in the SH between errors in the final warming, polar temperatures, the leading mode of variability, and jet strength, and in the NH between errors in polar temperatures, frequency of major SSWs, and jet strength. Models with a stronger QBO have stronger tropical upwelling and a colder NH vortex. Both the qualitative and quantitative analysis indicate a number of common and long�standing model problems, particularly related to the simulation of the SH and stratospheric variability.

Dokumentart:Zeitschriftenbeitrag
Titel:Multimodel climate and variability of the stratosphere
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Butchart, NealMet Office Exeter, UK
Charlton-Perez, A.J.Univ. Reading, UK
Cionni, IreneDLR-IPA
Haynes, P.H.Met Office Hadley Centre, Exeter, UK
Hardiman, S.C.Univ. of Cambridge, Cambridge, UK
Krüger, K.Kiel Univ., Kiel
Kushner, P.Univ. of Toronto, CND
Newman, P.A.NASA Goddard Space Flight Center, Greenbelt, MD, USA
Osprey, S.M.Univ. of Oxford, Oxford, UK
Perlwitz, J.Univ. of Colorado, Boulder, CO, USA
Sigmond, M.Univ. of Toronto, CND
Wang, L.Univ. of Toronto, CND
et, al.NICHT SPEZIFIZIERT
Dameris, MartinDLR-IPA
Eyring, VeronikaDLR-IPA
Garny, HellaDLR-IPA
Jöckel, PatrickMPI-C Mainz/DLR-IPA
Datum:2011
Erschienen in:Journal of Geophysical Research
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:116
DOI :10.1029/2010JD014995
Seitenbereich:Seiten 1-21
Status:veröffentlicht
Stichwörter:polar night jet; stratospheric warmings; quasi-biennial oscillation;
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erdbeobachtung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Atmosphären- und Klimaforschung
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Dynamik der Atmosphäre
Hinterlegt von: Prof. Dr. rer. nat. Martin Dameris
Hinterlegt am:20 Jun 2011 16:04
Letzte Änderung:23 Jan 2014 11:36

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.