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Timescales for detection of trends in the ocean carbon sink

机译:检测海洋碳汇趋势的时间表

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摘要

The ocean has absorbed 41 per cent of all anthropogenic carbon emitted as a result of fossil fuel burning and cement manufacture(1,2). The magnitude and the large-scale distribution of the ocean carbon sink is well quantified for recent decades(3,4). In contrast, temporal changes in the oceanic carbon sink remain poorly understood(5-7). It has proved difficult to distinguish between air-to-sea carbon flux trends that are due to anthropogenic climate change and those due to internal climate variability(5,6,8-13). Here we use a modelling approach that allows for this separation(14), revealing how the ocean carbon sink may be expected to change throughout this century in different oceanic regions. Our findings suggest that, owing to large internal climate variability, it is unlikely that changes in the rate of anthropogenic carbon uptake can be directly observed in most oceanic regions at present, but that this may become possible between 2020 and 2050 in some regions.
机译:由于化石燃料的燃烧和水泥的制造,海洋吸收了全部人为碳排放的41%(1,2)。近几十年来,海洋碳汇的规模和大规模分布得到了很好的量化(3,4)。相反,海洋碳汇的时间变化仍然知之甚少(5-7)。事实证明,很难区分由于人为气候变化和内部气候变化引起的海-海碳通量趋势(5,6,8-13)。在这里,我们使用一种建模方法来实现这种分离(14),揭示了本世纪整个不同海洋区域的海洋碳汇有望发生变化。我们的发现表明,由于内部气候的巨大变化,目前不可能直接在大多数海洋区域观察到人为碳吸收速率的变化,但是在某些地区到2020年至2050年之间这有可能实现。

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  • 来源
    《Nature》 |2016年第7591期|469-472|共4页
  • 作者单位

    Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USA|Univ Wisconsin, Ctr Climat Res, Madison, WI USA|Univ Wisconsin, Space Sci & Engn Ctr, Madison, WI USA;

    Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USA|NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA;

    Univ Wisconsin, Space Sci & Engn Ctr, Madison, WI USA;

    Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA;

    Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA;

    Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA|Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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