Le Quéré Corinne, Rödenbeck Christian, Buitenhuis Erik T, Conway Thomas J, Langenfelds Ray, Gomez Antony, Labuschagne Casper, Ramonet Michel, Nakazawa Takakiyo, Metzl Nicolas, Gillett Nathan, Heimann Martin
Max Planck Institut für Biogeochemie, Postfach 100164, D-07701 Jena, Germany.
Science. 2007 Jun 22;316(5832):1735-8. doi: 10.1126/science.1136188. Epub 2007 May 17.
Based on observed atmospheric carbon dioxide (CO2) concentration and an inverse method, we estimate that the Southern Ocean sink of CO2 has weakened between 1981 and 2004 by 0.08 petagrams of carbon per year per decade relative to the trend expected from the large increase in atmospheric CO2. We attribute this weakening to the observed increase in Southern Ocean winds resulting from human activities, which is projected to continue in the future. Consequences include a reduction of the efficiency of the Southern Ocean sink of CO2 in the short term (about 25 years) and possibly a higher level of stabilization of atmospheric CO2 on a multicentury time scale.
基于观测到的大气二氧化碳（CO₂）浓度和一种反演方法，我们估计，相对于大气CO₂大幅增加所预期的趋势，南大洋的CO₂汇在1981年至2004年间以每十年每年0.08拍克碳的速率减弱。我们将这种减弱归因于观测到的由人类活动导致的南大洋风力增强，预计这种增强在未来还会持续。其后果包括短期内（约25年）南大洋CO₂汇效率降低，并且在多个世纪的时间尺度上大气CO₂可能稳定在更高水平。
