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Title: SMILES observations of mesospheric ozone during the solar eclipse
Authors: Imai, Koji
Imamura, Takashi
Takahashi, Kenshi  kyouindb  KAKEN_id  orcid (unconfirmed)
Akiyoshi, Hideharu
Yamashita, Yousuke
Suzuki, Makoto
Ebisawa, Ken
Shiotani, Masato  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 今井, 弘二
高橋, けんし
塩谷, 雅人
Issue Date: 7-May-2015
Publisher: American Geophysical Union
Journal title: Geophysical Research Letters
Volume: 42
Issue: 9
Start page: 3576
End page: 3582
Abstract: The Superconducting Submillimeter-Wave Limb-Emission Sounder (SMILES) successfully observed vertical distributions of ozone (O[3]) concentration in the middle atmosphere during the annular solar eclipse that occurred on 15 January 2010. In the mesosphere, where the photochemical lifetime of O[3] is relatively short (approximately 100 s), altitude-dependent changes in O[3] concentration under reduced solar radiation and their temporal variations were clearly observed as a function of the eclipse obscuration. This study reports the vertical distributions of mesospheric O[3] during a solar eclipse event and analyzes theoretically the eclipse-induced changes. We show that simple analytical expressions for O[3] concentration, which assume that O[3] and O are in a photochemically steady state, can be used to describe the O[3] concentration under reduced solar radiation. The SMILES data obtained during the eclipse provide a unique opportunity to test our current understanding of mesospheric O[3] photochemistry.
Description: 日食を利用して太陽光が大気中のオゾンへ与える影響を調査. 京都大学プレスリリース. 2015-06-16.
Rights: ©2015. American Geophysical Union.
DOI(Published Version): 10.1002/2015GL063323
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