大気中のCO2の変動する北大西洋のシンクを追跡する.
Andrew J Watson1, Ute Schuster, Dorothee C E Bakker
1School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK. a.watson@uea.ac.uk
まとめ
北大西洋では,二酸化炭素 (CO2) の吸収が年ごとに大きく変化している. 計測器を搭載した船は2005年にCO2の流れを正確に測定し,海洋の炭素吸収のモニタリングを向上させました.
科学分野:
- 海洋学 海洋学 海洋学
- 気候科学 気候科学
- バイオジオケミストリー バイオジオケミストリー
背景:
- 海洋は大気中の二酸化炭素 (CO2) の主要な吸収源として機能します.
- 海洋盆地における海洋CO2吸収率の正確な追跡は,稀な歴史的観測によって制限されています.
- 海洋のCO2吸収の変動を理解することは,気候変動モデリングに不可欠です.
研究 の 目的:
- 北大西洋における二酸化炭素 (CO2) 吸収の変動を,年間時間スケールで調査する.
- 2005年に北大西洋に流入する二酸化炭素の年間流出量を高精度で定量化するためです.
- 海洋のCO2吸収を監視するために,計測器を搭載した商船の使用の可能性を評価する.
主な方法:
- 北大西洋のCO2吸収の実質的な変動性を示すために観測を活用した.
- 計測器を装備した商船の協調ネットワークから計測を行った.
- 2005年に北大西洋に流入する二酸化炭素の年間流出量を約10%の精度で定義した.
主要な成果:
- 北大西洋の二酸化炭素 (CO2) 吸収の実質的な変動は,数年の時間スケールで観察されました.
- 2005年の北大西洋への年間CO2流は,約10%の精度で決定されました.
- この研究は,海洋のCO2吸収を定量化するための船舶ベースの測定の有効性を強調しています.
結論:
- 北大西洋は,大気中の二酸化炭素 (CO2) を吸収する能力において,年間変動が顕著である.
- 計測器を搭載した商船の連携ネットワークは,海洋のCO2吸収を正確にモニタリングするための実行可能な方法を提供します.
- このアプローチは,よく取引されている海盆地における変化する海洋の炭素吸収源の追跡を強化するための約束を保持しています.
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