Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD 21218, USA.
Science. 2013 Feb 1;339(6119):568-70. doi: 10.1126/science.1225411.
Surface westerly winds in the Southern Hemisphere have intensified over the past few decades, primarily in response to the formation of the Antarctic ozone hole, and there is intense debate on the impact of this on the ocean's circulation and uptake and redistribution of atmospheric gases. We used measurements of chlorofluorocarbon-12 (CFC-12) made in the southern oceans in the early 1990s and mid- to late 2000s to examine changes in ocean ventilation. Our analysis of the CFC-12 data reveals a decrease in the age of subtropical subantarctic mode waters and an increase in the age of circumpolar deep waters, suggesting that the formation of the Antarctic ozone hole has caused large-scale coherent changes in the ventilation of the southern oceans.
在过去几十年中，南半球表面西风显著增强，主要是由于南极臭氧洞的形成，而这对海洋环流以及大气气体的吸收和再分配的影响存在激烈的争论。我们利用 20 世纪 90 年代初和 21 世纪中期到后期在南大洋进行的氯氟碳-12（CFC-12）测量结果来研究海洋通风的变化。我们对 CFC-12 数据的分析表明亚热带亚南极模态水的年龄减小，而环极深海水的年龄增加，这表明南极臭氧洞的形成导致了南大洋通风的大规模协同变化。
