論文

査読有り 本文へのリンクあり
2020年2月16日

HO <inf>2</inf> Generation Above Sprite-Producing Thunderstorms Derived from Low-Noise SMILES Observation Spectra

Geophysical Research Letters
  • T. Yamada
  • ,
  • T. O. Sato
  • ,
  • T. Adachi
  • ,
  • H. Winkler
  • ,
  • K. Kuribayashi
  • ,
  • R. Larsson
  • ,
  • N. Yoshida
  • ,
  • Y. Takahashi
  • ,
  • M. Sato
  • ,
  • A. B. Chen
  • ,
  • R. R. Hsu
  • ,
  • Y. Nakano
  • ,
  • T. Fujinawa
  • ,
  • S. Nara
  • ,
  • Y. Uchiyama
  • ,
  • Y. Kasai

47
3
開始ページ
e60090
終了ページ
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1029/2019GL085529

©2020. The Authors. No direct observational evidence of sprite-produced active radicals has been presented owing to the difficulty of observing a small event area in the nighttime mesosphere, whereas sprite chemical models have indicated that sprite discharge locally affects the atmospheric composition. We present the first observational evidence of a HO2 production above sprite-producing thunderstorms from the coincidence of temporal-spatial observations of HO2 spectra, sprite events, and thunderstorms by two space instruments, a submillimeter-wave limb spectrometer and ultraviolet/visible Imager and a ground-based very low frequency radiation lightning detection network. A total of three areas was identified with enhanced HO2 levels of approximately 1025 molecules. A chemical sprite model indicates an increase in HO2 in the considered altitude region; however, the predicted production due to a single sprite event is smaller than the observed enhancement. Our observational results suggest that sprites potentially contribute 1% of nighttime background HO2 generation at altitudes of 75–80 km globally.

リンク情報
DOI
https://doi.org/10.1029/2019GL085529
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85079575605&origin=inward 本文へのリンクあり
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85079575605&origin=inward
URL
https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2019GL085529 本文へのリンクあり

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