Blar i forfatter "Hall, Chris M."

Viser treff 1-2 av 2

    • Meteor radar observations of polar mesospheric summer echoes over Svalbard 

      Younger, Joel P.; Reid, Iain M.; Adami, Chris L.; Hall, Chris M.; Tsutsumi, Masaki (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-21)
      A 31 MHz meteor radar located in Svalbard was used to observe polar mesospheric echoes (PMSEs) during summer 2020. Data from 19 July were selected for detailed analysis, with a focus on extracting additional information to characterize the atmosphere in the PMSE region. The use of an all-sky meteor radar adds an additional use to data collected for meteor observations and enables the detection ...

    • 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 ...