Blar i forfatter "Li, Guozhu"

Viser treff 1-4 av 4

    • Climatology of the mesopause relative density using a global distribution of meteor radars 

      Yi, Wen; Xue, Xianghui; Reid, Iain; Murphy, Damian J.; Hall, Chris; Tsutsumi, Masaki; Ning, Baiqi; Li, Guozhu; Vincent, Robert; Chen, Jinsong; Wu, Jianfei; Chen, Tingdi; Dou, Xiankang (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-06)
      The existing distribution of meteor radars located from high- to low-latitude regions provides a favorable temporal and spatial coverage for investigating the climatology of the global mesopause density. In this study, we report the climatology of the mesopause relative density estimated using multiyear observations from nine meteor radars, namely, the Davis Station (68.6∘ S, 77.9∘ E), Svalbard ...

    • Impact of sudden stratospheric warmings on the neutral density, temperature and wind in the MLT region 

      Zhou, Baozhu; Yi, Wen; Xue, Xianghui; Ye, Hailun; Zeng, Jie; Li, Guozhu; Tsutsumi, Masaki; Gulbrandsen, Njål; Chen, Tingdi; Dou, Xiankang (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-04)
      In this study, the neutral density and horizontal wind observed by the four meteor radars, as well as the temperature measured by the Microwave Limb Sounder (MLS) onboard the Aura satellite are used to examine the response of neutral density, wind, and temperature in the MLT region to the stratospheric sudden warmings (SSWs) during 2005 to 2021 in the Northern Hemisphere. The four meteor radars ...

    • Zonal Wave Number Diagnosis of Rossby Wave-Like Oscillations Using Paired Ground-Based Radars 

      He, Maosheng; Yamazaki, Yosuke; Hoffmann, Peter; Hall, Chris; Tsutsumi, Masaki; Li, Guozhu; Chau, Jorge L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-03)
      Free traveling Rossby wave normal modes (RNMs) are often investigated through large-scale space-time spectral analyses, which therefore is subject to observational availability, especially in the mesosphere. Ground-based mesospheric observations were broadly used to identify RNMs mostly according to the periods of RNMs without resolving their horizontal scales. The current study diagnoses zonal ...

    • Zonal wavenumber diagnosis of Rossby-wave-like oscillations using paired ground-based radars 

      He, Maosheng; Yamazaki, Yosuke; Hoffmann, Peter; Hall, Chris M.; Tsutsumi, Masaki; Li, Guozhu; Chau, Jorge Luis (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-03)
      Free traveling Rossby wave normal modes (RNMs) are often investigated through large‐scale space‐time spectral analyses, which therefore is subject to observational availability, especially in the mesosphere. Ground‐based mesospheric observations were broadly used to identify RNMs mostly according to the periods of RNMs without resolving their horizontal scales. The current study diagnoses zonal wave ...