太陽磁気セクター構造:地球の大気循環との関係

J M Wilcox, P H Scherrer, L Svalgaard

Science (New York, N.Y.)

|April 13, 1973

まとめ

太陽の磁場構造は北半球の冬の天候に影響を与えます. 具体的には,地球が太陽系領域の境界を通過すると,高渦性領域 (低圧谷) は約10%弱くなります.

科学分野:

大気科学大気科学
ヘリオフィジックスヘリオフィジックス
宇宙天気宇宙天気

背景:

太陽磁場はセクター構造を示しています.
この構造は太陽風によって外へと運ばれます.
太陽活動と地球の気象パターンの間の潜在的なリンクは,現在進行中の研究分野です.

研究の目的:

北半球における太陽磁気セクター構造と大気渦巻の関係について調査する.
太陽光発電部門の境界を越えが低気圧低位に与える影響を定量化するために.

主な方法:

北半球300ミリバーレベルのデータの分析.
冬の間,高正の渦の中心 (低気圧低谷) に焦点を当てる.
太陽磁気セクターの境界通過時間との相関分析.

主要な成果:

統計的に有意な関係が,太陽磁気セクター構造と高渦性センターの平均面積の間に観察されました.
太陽光発電セクターの境界線横断点の近くでは,高渦の平均面積が約10%減少した.
これは,低気圧の低気圧に緩効果があることを示唆している.

結論:

太陽磁気セクター構造は,北半球の冬の低圧システムの強度を調節しているようです.
太陽系領域の境界通過は,大気渦巻の一時的な減少と相関しています.
基礎となる物理的メカニズムを理解するためにさらなる研究が必要である.

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