First observation of mesosphere response to the solar wind high‐speed streams

DOI Web Site Web Site 被引用文献1件
  • Wen Yi
    CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Sciences University of Science and Technology of China Hefei China
  • Iain M. Reid
    School of Physical Sciences University of Adelaide Adelaide South Australia Australia
  • Xianghui Xue
    CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Sciences University of Science and Technology of China Hefei China
  • Joel P. Younger
    School of Physical Sciences University of Adelaide Adelaide South Australia Australia
  • Andrew J. Spargo
    School of Physical Sciences University of Adelaide Adelaide South Australia Australia
  • Damian J. Murphy
    Australian Antarctic Division Kingston Tasmania Australia
  • Tingdi Chen
    CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Sciences University of Science and Technology of China Hefei China
  • Xiankang Dou
    CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Sciences University of Science and Technology of China Hefei China

書誌事項

公開日
2017-08
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/2017ja024446
公開者
American Geophysical Union (AGU)

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説明

<jats:title>Abstract</jats:title><jats:p>We present a first analysis of 9 and 6.75 day periodic oscillations observed in the neutral mesospheric density in 2005 and 2006. Mesospheric densities near 90 km are derived using data from the Davis meteor radar (68.5°S, 77.9°E; magnetic latitude, 74.6°S), Antarctica. Spectral analysis indicates that the pronounced periodicities of 9 and 6.75 days observed in the mesosphere densities are associated with variations in solar wind high‐speed streams and recurrent geomagnetic activity. Neutral mesospheric winds and temperatures, simultaneously measured by the Davis meteor radar, also exhibit 9 and 6.75 day periodicities. A Morlet wavelet analysis shows that the time evolution of the 9 and 6.75 day oscillations in the neutral mesosphere densities and winds are similar to those in the solar wind and in planetary magnetic activity index, <jats:italic>Kp</jats:italic> in 2005 and 2006. These results demonstrate a direct coupling between Sun's corona (upper atmosphere) and the Earth's mesosphere.</jats:p>

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