Sensitivity of the mid‐winter Arctic stratosphere to QBO width in a simplified chemistry–climate model | Zendy

Hurwitz M. M. | Zendy; Braesicke P. | Zendy; Pyle J. A. | Zendy

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Sensitivity of the mid‐winter Arctic stratosphere to QBO width in a simplified chemistry–climate model

Author(s) -

Hurwitz M. M.,

Braesicke P.,

Pyle J. A.

Publication year - 2011

Publication title -

atmospheric science letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.951

H-Index - 45

ISSN - 1530-261X

DOI - 10.1002/asl.330

Subject(s) - stratosphere , quasi biennial oscillation , climatology , atmospheric sciences , arctic , environmental science , polar vortex , the arctic , middle latitudes , climate model , arctic oscillation , sensitivity (control systems) , latitude , ozone , ozone depletion , ozone layer , climate change , meteorology , physics , oceanography , geology , northern hemisphere , electronic engineering , engineering , astronomy

This study is the first to assess the sensitivity of the mid‐winter Arctic stratosphere to variability in the width of the quasi‐biennial oscillation (QBO). Differences between a pair of idealised simulations with a simplified chemistry–climate model are examined. The width of the QBO appears to have equal influence on the Arctic stratosphere as does the phase (i.e. the Holton‐Tan mechanism). In the model, a wider QBO acts like a preferential shift towards the easterly phase of the QBO. That is, on average, a wider QBO is associated with a weaker Arctic vortex and with enhanced total ozone at high latitudes. Copyright © 2011 Royal Meteorological Society

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