Mid‐Latitude Thermosphere‐Ionosphere Na (TINa) Layers Observed With High‐Sensitivity Na Doppler Lidar Over Boulder (40.13°N, 105.24°W)

Details

• Journal Title:
  Geophysical Research Letters
• Personal Author:
  Chu, Xinzhao ; Chen, Yingfei ; Cullens, Chihoko Y. ; Yu, Zhibin ; Xu, Zhonghua ; Zhang, Shun‐Rong ; Huang, Wentao ; Jandreau, Jackson ; Immel, Thomas J. ; Richmond, Arthur D.
• NOAA Program & Office:
  CIRES (Cooperative Institute for Research in Environmental Sciences)
• Description:
  We report the first lidar observations of regular occurrence of mid-latitude thermosphere- ionosphere Na (TINa) layers over Boulder (40.13°N, 105.24°W), Colorado. Detection of tenuous Na layers ( ∼0.1–1 cm−3 from 150 to 130 km) was enabled by high-sensitivity Na Doppler lidar. TINa layers occur regularly in various months and years, descending from ∼125 km after dusk and from ∼150 km before dawn. The downward-progression phase speeds are ∼3 m/s above 120 km and ∼1 m/s below 115 km, consistent with semidiurnal tidal phase speeds. One or more layers sometimes occur across local midnight. Elevated volume mixing ratios above the turning point ( ∼105–110 km) of Na density slope
• Keywords:
  General Earth And Planetary Sciences Geophysics General Earth And Planetary Sciences General Earth And Planetary Sciences
• Source:
  Geophysical Research Letters, 48(11)
• DOI:
  https://doi.org/10.1029/2021gl093729
• ISSN:
  0094-8276 ; 1944-8007
• Format:
  PDF
• Publisher:
  American Geophysical Union (AGU)
• Document Type:
  Journal Article
• License:
  https://creativecommons.org/licenses/by/4.0/
• Rights Information:
  CC BY
• Compliance:
  Library
• Main Document Checksum:
  urn:sha256:ace4fb601b5acb232ef16ec5abe7d448e3e7929a96934062cd10eb379b16b033
• Download URL:
  https://repository.library.noaa.gov/view/noaa/52863/noaa_52863_DS1.pdf
• File Type:
  [PDF - 4.63 MB ]