オリゴセンの気候システムの心拍です
Heiko Pälike1, Richard D Norris, Jens O Herrle
1National Oceanography Centre, Southampton, School of Ocean and Earth Science, European Way, Southampton SO14 3ZH, UK. H.Palike@soton.ac.uk
まとめ
1300万年の気候記録は,軌道周期と氷河期に関連した地球規模の炭素サイクル"心拍"を明らかにしています. これは,地球の炭素循環,太陽力,氷河現象の間の根本的な相互作用を示唆しています.
科学分野:
- 古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは
- 地球システム科学 地球システム科学
- 海洋学 海洋学とは
背景:
- オリゴセンの気候記録は,地球システムの長期的な動態に関する洞察を提供します.
- 軌道上の変動は,地球の気候と氷河期に影響を及ぼすことが知られている.
- 世界的な炭素循環は,気候の調節に重要な役割を果たしています.
研究 の 目的:
- 軌道サイクル,地球規模の炭素サイクル,氷河期間の間の長期的な関係を調査する.
- オリゴセーン時代の気候と炭素循環のダイナミクスの周期性を特定する.
- 軌道強制に対する気候システムの反応を駆動するメカニズムを理解する.
主な方法:
- 赤道太平洋の1300万年連続した気候記録の分析.
- 氷河期におけるサイクルと炭素循環の識別.
- カーボンサイクルと太陽力の相互作用をシミュレートするためのボックスモデリング.
主要な成果:
- Aは発音する.
- ハートビート ハートビート
- 世界的な炭素循環と氷河の周期性について特定されました.
- 40万5千年,12万7千年,9万6千年の偏心周期と120万年の傾き周期が検出されました.
- 40万5千年の偏心周期は,炭素が海洋に長期間存在していることで増幅されています.
結論:
- 気候システムは,炭素循環,太陽力,氷河現象の間の根本的な相互作用を示しています.
- 軌道上の変動は,深海の酸性および地球規模のバイオマス生産/埋葬を調節する.
- 海洋の炭素の長時間滞在は,長期の偏心周期を拡大する.
関連する概念動画
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