硫酸塩の気候への冷却効果は,人為的なSO2の雲内の酸化によるものです
Science (New York, N.Y.)
|October 2, 1992
まとめ
人為的な二酸化硫黄 (SO2) の排出は北半球の冷却を引き起こす. 雲処理は,硫酸エアロゾールの効率を向上させ,太陽放射線を散乱させ,気候強制に影響を与えます.
科学分野:
- 大気化学 大気化学
- 気候科学 気候科学
- エアロゾール科学は,
背景:
- 人為的な二酸化硫黄 (SO2) の排出は,大気中のエアロゾール形成に寄与する.
- 硫酸エアロゾールは太陽放射線を散乱させ,北半球の冷却効果を引き起こす可能性があります.
- 硫酸塩の気候強制に関する以前の推定は,限られた分散測定に基づいていた.
研究 の 目的:
- 硫酸エロゾール散布効率の向上におけるクラウド処理の役割を調査する.
- 硫酸塩の気候強制の推定を精査するために.
主な方法:
- モデル結果を活用して,硫酸エロゾールの雲処理のメカニズムを探求する.
- ガス相と水相SO2酸化の分散効率の違いを分析する.
主要な成果:
- 雲処理は,硫酸エアロゾールの太陽放射線反射効率を大幅に高めます.
- SO(2) を硫酸に水相酸化し,その後に雲の蒸発が続くと,より効率的な分散器が得られます.
- このメカニズムは,以前の推定値と比較して,硫酸塩の散布効率がより高いことを説明します.
結論:
- 雲処理は,人為的なSO2排出の気候冷却効果を拡大する重要なメカニズムである.
- 雲の相互作用による硫酸エアロゾールの分散効率の向上は,気候モデルで考慮する必要があります.
- 正確な気候強制評価には,エアロゾールと雲の相互作用を理解することが必要です.
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