A global estimate of the full oceanic 13C Suess effect since the preindustrial
A global estimate of the full oceanic 13C Suess effect since the preindustrial
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DOI：
10.1002/2016gb005473
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发表时间：
2017-03-01
影响因子：
5.2
通讯作者：
Eldevik, Tor
中科院分区：
文献类型：
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作者：
Eide, Marie;Olsen, Are;Eldevik, Tor
我们根据观测结果首次估计了自工业化时代以来全球海洋 C-13 Suess 效应。这是通过首先使用 Olsen 和 Ninnemann (2010) 的方法计算跨越世界海洋的部分的 C-13 Suess 效应估计而得出的，然后将其映射到全球 1 度 x 1 度网格上。我们发现所有盆地的上部 1000m 都存在强烈的 C-13 Suess 效应，其中北半球副热带环流的下降幅度最大，自工业革命以来，溶解无机碳的 Delta C-13 下降了 0.8% 以上。在更深的地方，只有在北大西洋北部才能检测到显着的 C-13 Suess 效应。 C-13 Suess 效应与人为碳浓度之间的关系在水团之间变化很大，反映了源水在下沉前与大气 C-13 Suess 效应平衡的程度。最后，我们估计全球海洋人为二氧化碳库存量为 92 +/- 46 Gt C。这提供的估计值几乎独立于先前的估计值，并且在不确定性范围内保持一致。
We present the first estimate of the full global ocean C-13 Suess effect since preindustrial times, based on observations. This has been derived by first using the method of Olsen and Ninnemann (2010) to calculate C-13 Suess effect estimates on sections spanning the world ocean, which were next mapped on a global 1 degrees x 1 degrees grid. We find a strong C-13 Suess effect in the upper 1000mof all basins, with strongest decrease in the subtropical gyres of the Northern Hemisphere, where delta C-13 of dissolved inorganic carbon has decreased by more than 0.8% since the industrial revolution. At greater depths, a significant C-13 Suess effect can only be detected in the northern parts of the North Atlantic Ocean. The relationship between the C-13 Suess effect and the concentration of anthropogenic carbon varies strongly between water masses, reflecting the degree to which source waters are equilibrated with the atmospheric C-13 Suess effect before sinking. Finally, we estimate a global ocean inventory of anthropogenic CO2 of 92 +/- 46 Gt C. This provides an estimate that is almost independent of and consistent, within the uncertainties, with previous estimates.