The neutral dynamics during the 2009 sudden stratosphere warming simulated by different whole atmosphere models

DOI HANDLE HANDLE Web Site Web Site 被引用文献8件 参考文献62件 オープンアクセス
  • N. M. Pedatella
    High Altitude Observatory National Center for Atmospheric Research Boulder Colorado USA
  • T. Fuller‐Rowell
    CIRES University of Colorado Boulder Boulder Colorado USA
  • H. Wang
    CIRES University of Colorado Boulder Boulder Colorado USA
  • H. Jin
    National Institute of Information and Communications Technology Tokyo Japan
  • Y. Miyoshi
    Department of Earth and Planetary Sciences Kyushu University Fukuoka Japan
  • H. Fujiwara
    Faculty of Science and Technology Seikei University Tokyo Japan
  • H. Shinagawa
    National Institute of Information and Communications Technology Tokyo Japan
  • H.‐L. Liu
    High Altitude Observatory National Center for Atmospheric Research Boulder Colorado USA
  • F. Sassi
    Space Science Division Naval Research Laboratory Washington DC USA
  • H. Schmidt
    Max Planck Institute for Meteorology Hamburg Germany
  • V. Matthias
    Leibniz Institute for Atmospheric Physics at Rostock University Kühlungsborn Germany
  • L. Goncharenko
    Haystack Observatory Massachusetts Institute of Technology Westford Massachusetts USA

書誌事項

公開日
2014-02
資源種別
journal article
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/2013ja019421
公開者
American Geophysical Union (AGU)

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説明

<jats:p>The present study compares simulations of the 2009 sudden stratospheric warming (SSW) from four different whole atmosphere models. The models included in the comparison are the Ground‐to‐topside model of Atmosphere and Ionosphere for Aeronomy, Hamburg Model of the Neutral and Ionized Atmosphere, Whole Atmosphere Model, and Whole Atmosphere Community Climate Model Extended version (WACCM‐X). The comparison focuses on the zonal mean, planetary wave, and tidal variability in the middle and upper atmosphere during the 2009 SSW. The model simulations are constrained in the lower atmosphere, and the simulated zonal mean and planetary wave variability is thus similar up to ∼1 hPa (50 km). With the exception of WACCM‐X, which is constrained up to 0.002 hPa (92 km), the models are unconstrained at higher altitudes leading to considerable divergence among the model simulations in the mesosphere and thermosphere. We attribute the differences at higher altitudes to be primarily due to different gravity wave drag parameterizations. In the mesosphere and lower thermosphere, we find both similarities and differences among the model simulated migrating and nonmigrating tides. The migrating diurnal tide (<jats:italic>D</jats:italic><jats:italic>W</jats:italic>1) is similar in all of the model simulations. The model simulations reveal similar temporal evolution of the amplitude and phase of the migrating semidiurnal tide (<jats:italic>S</jats:italic><jats:italic>W</jats:italic>2); however, the absolute <jats:italic>S</jats:italic><jats:italic>W</jats:italic>2 amplitudes are significantly different. Through comparison of the zonal mean, planetary wave, and tidal variability during the 2009 SSW, the results of the present study provide insight into aspects of the middle and upper atmosphere variability that are considered to be robust features, as well as aspects that should be considered with significant uncertainty.</jats:p>

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