CFC - 11、Δ14C和3H示踪剂作为评估海洋中人为二氧化碳浓度的手段

IF 2.3 4区 地球科学 Q3 METEOROLOGY & ATMOSPHERIC SCIENCES
F. Touratier, L. Azouzi, C. Goyet
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引用次数: 111

摘要

由于海洋中人为的二氧化碳浓度无法测量,因此很难评估各种估计的准确性。到目前为止,只有在各种方法和假设之间的比较被用来估计结果的不确定性。在这里,我们使用三种测量的人为示踪剂(CFC-11, Δ 14c和3h)来评估基于非常不同假设的人为co2分布的三种估计的相关性。为了将这项工作的重点放在海洋中示踪剂和人为co2浓度估值之间的相关性上,我们选择了WOCE I1巡航(印度洋;1995年),因为它包括了三种示踪剂的数据以及碳酸盐/二氧化碳性质的数据。这种选择进一步使我们能够使用ΔC*和MIX方法使用已发表的人为co2浓度结果。利用该数据集的四种性质(总溶解无机碳、总碱度、溶解氧和势温),我们还利用最近的TrOCA方法估计了人为co2的分布。人为co2浓度与人为示踪剂3h、CFC-11和Δ 14c的相关性结果表明,当使用MIX或TrOCA方法估算人为co2浓度时,这些相关性显著高于使用ΔC*方法。基于这些结果和简单的TrOCA方法易于使用的特点,我们建议使用这种方法来揭示海洋中人为碳的分布。DOI: 10.1111 / j.1600-0889.2006.00247.x
本文章由计算机程序翻译,如有差异,请以英文原文为准。
CFC‐11, Δ14C and 3H tracers as a means to assess anthropogenic CO2 concentrations in the ocean
Since anthropogenic CO 2 concentrations in the ocean cannot be measured, it is very difficult to assess the accuracy of the various estimates. Until now, only comparisons among the various approaches and hypotheses have been used to estimate the uncertainties of the results. Here we use three measured anthropogenic tracers (CFC-11, Δ 14 C and 3 H) to assess the relevance of three estimates of anthropogenic CO 2 distributions based upon very different hypotheses. In order to focus this work on the correlations among tracers and estimates of anthropogenic CO 2 concentrations in the ocean, we chose as an example the data set from the WOCE I1 cruise (Indian Ocean; 1995), since it included data from the three tracers as well as data of the carbonate/CO 2 properties. This choice further allows us to use the published results of anthropogenic CO 2 concentrations using both the ΔC* and MIX approaches. Using four properties (total dissolved inorganic carbon, total alkalinity, dissolved oxygen and potential temperature) of this data set, we also estimated the distribution of anthropogenic CO 2 using the recent TrOCA approach. The results of correlations of anthropogenic CO 2 concentrations with the anthropogenic tracers 3 H, CFC-11 and Δ 14 C, indicate that these correlations are significantly higher when anthropogenic CO 2 is estimated using either the MIX or the TrOCA approaches than using the ΔC* approach. Based upon these results and the easiness to use the simple TrOCA approach we propose to use this method to unravel the distribution of anthropogenic carbon in the Ocean. DOI: 10.1111/j.1600-0889.2006.00247.x
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期刊介绍: Tellus B: Chemical and Physical Meteorology along with its sister journal Tellus A: Dynamic Meteorology and Oceanography, are the international, peer-reviewed journals of the International Meteorological Institute in Stockholm, an independent non-for-profit body integrated into the Department of Meteorology at the Faculty of Sciences of Stockholm University, Sweden. Aiming to promote the exchange of knowledge about meteorology from across a range of scientific sub-disciplines, the two journals serve an international community of researchers, policy makers, managers, media and the general public.
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