関連する実験動画
Updated: Jul 17, 2026

10:11
The Benthic Exchange of O2, N2 and Dissolved Nutrients Using Small Core Incubations
Published on: August 3, 2016
オゾン層の垂直分布の傾向
1National Center for Atmospheric Research, Boulder, CO 80307, USA. National Aeronautics and Space Administration (NASA), Goddard Space Flight Center, Greenbelt, MD 20771, USA. Georgia Institute of Technology, Atlanta, GA 30332, USA. Harvard Un.
まとめ
オゾン層の枯渇は,1979年以来,10~45キロメートルの全高度で著しいマイナスの傾向を示しています. ストラトスフィアのオゾン損失は,北中緯度の冬と春に最も顕著です.
科学分野:
- 大気科学 大気科学
- 環境科学 環境科学
- オゾン層の研究 オゾン層の研究
背景:
- オゾン層は地球を有害な紫外線から守っています.
- オゾン層の動向を理解することは,気候と環境モニタリングにおいて極めて重要です.
- 以前の研究では,オゾン層の減少が示され,更新された分析が必要になった.
研究 の 目的:
- 1979年以降の垂直プロファイルのオゾントレンドの最新推定を提供するためである.
- 様々なオゾン測定システムの一貫性を評価する.
- オゾン層の損失の特定の高さの範囲と季節的変動を特定するために.
主な方法:
- 衛星による測定の分析.
- 地上での測定の分析. 地上での測定の分析.
- バルーンベースの測定の分析.
主要な成果:
- 複数の独立した測定システムで一貫したオゾントレンドの推定値が観測されました.
- 統計的に有意な負のオゾントレンドは,1979年から1996年の間に10キロから45キロメートルまでの全高度で検出されました.
- オゾン層の減少は,北部の中緯度 (10~18km) で季節的変動を示し,冬と春にピークの減少を示した.
- 極度のオゾン層の劣化率は40km (7.4%/十年) と15km (7.3%/十年) であった.
結論:
- オゾントレンドの垂直プロファイルは,枯渇メカニズムの指紋として機能します.
- 発見は,独立して測定されたオゾン全柱の動向と一致しています.
- オゾン層の減少は,特に特定の大気層や季節において,過去20年間にわたって顕著な現象となっている.
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