まとめ
Active Cavity Radiometer Irradiance Monitor (ACRIM I) は,1980年から1985年にかけて年間0.019%の太陽光照射量の減少を観測した. 太陽の磁気活動に関連したこの傾向は,複数の独立した測定によって検証されました.
科学分野:
- 太陽物理 太陽物理学
- 地球科学 地球科学 地球科学
- 宇宙物理学の宇宙物理学
背景:
- 総太陽光照射量 (TSI) は,地球の気候の主要な原動力である.
- 長期的なSTIの変動を理解することは,気候モデリングに不可欠です.
- 以前の衛星ミッションは,限られた長期のSTIデータを提供した.
研究 の 目的:
- ACRIM Iの最初の5年間の太陽光照射総量データを分析するために.
- この期間中の太陽光照射の傾向を特定し,定量化します.
- 観測された太陽光照射量の変動の潜在的な原因を調査する.
主な方法:
- ソーラー・マキシマム・ミッション宇宙船のアクティブ・キャビティ・ラジオメーター・イラディアンス・モニター (ACRIM I) のデータを活用した.
- ACRIM Iの調査結果と内部自己校正をクロス検証した.
- ACRIM Iのデータを,探査ロケット,気球,ニンバス-7宇宙船からの独立した測定値と比較した.
主要な成果:
- 合計太陽光照射量の統計的に有意な減少傾向が検出されました.
- 観測された傾向は,年間−0.019%の減少を示した.
- 傾向の存在は,複数の独立したデータソースによって裏付けられました.
結論:
- 太陽の明るさは,多年の時間尺度で予期せぬ変動を示した.
- これらの変動は,太陽のサイクルとその関連する磁気活動と関連している可能性があります.
- ACRIM Iのデータは,太陽の変動性とその潜在的な気候影響に関する重要な洞察を提供しました.
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