Saturation of the Southern Ocean CO2 sink due to recent climate change
Saturation of the Southern Ocean CO2 sink due to recent climate change
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DOI：
10.1126/science.1136188
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发表时间：
2007-06-22
期刊：
影响因子：
56.9
通讯作者：
Heimann, Martin
中科院分区：
文献类型：
--
作者：
Le Quere, Corinne;Roedenbeck, Christian;Heimann, Martin
根据观测到的大气中二氧化碳（CO2）浓度和逆方法，我们估计，南大洋的CO2汇已减弱了0.08 petagrams的碳每年每十年相对于预期的趋势，从大气中的CO2的大量增加，在1981年和2004年之间。我们将这种减弱归因于人类活动导致的南大洋风的增加，预计这种情况将在未来继续。其后果包括在短期内（约25年）降低南大洋CO2汇的效率，并可能在多世纪的时间尺度上提高大气CO2的稳定水平。
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.