Anthropogenic carbon in the East Greenland Current
Anthropogenic carbon in the East Greenland Current
复制标题
东格陵兰洋流中的人为碳
DOI：
10.1016/j.pocean.2008.04.001
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发表时间：
2008
影响因子：
4.1
通讯作者：
E. Jeansson
中科院分区：
文献类型：
--
作者：
S. Jutterström;E. Jeansson
根据2002年东格陵兰海流（EGC）的数据，提出了溶解无机人为碳（CTanthro）的部分。CTanthro已估计使用基于最佳多参数分析与预定义的水源水类型的模型。通过基于渡越时间分布（TTD）技术的年龄估计，将CTanthro值分配给源水类型。这种方法的有效性进行了讨论，并与其他方法相比。结果表明，EGC在整个水体中具有较高的CTanthro水平，并在沿着向南输送的过程中检测到不同源区的人为信号。我们估计，随着丹麦海峡溢出（σθ>27.8kgm−3），CTanthro的年输送量为1.036 ±0.005GtCy−1。在这个密度范围内，CTanthro的平均浓度为1.30 μmolkg−1。主要贡献来自大西洋衍生沃茨、极地中层水和格陵兰海北极中层水。
Sections of dissolved inorganic anthropogenic carbon (CTanthro) based on 2002 data in the East Greenland Current (EGC) are presented. The CTanthrohas been estimated using a model based on optimum multiparameter analysis with predefined source water types. Values of CTanthrohave been assigned to the source water types through age estimations based on the transit time distribution (TTD) technique. The validity of this approach is discussed and compared to other methods. The results indicated that the EGC had rather high levels of CTanthroin the whole water column, and the anthropogenic signal of the different source areas were detected along the southward transit. We estimated an annual transport of CTanthrowith the Denmark Strait overflow (σθ>27.8kgm−3) of ∼0.036±0.005GtCy−1. The mean CTanthroconcentration in this density range was ∼30μmolkg−1. The main contribution was from Atlantic derived waters, the Polar Intermediate Water and the Greenland Sea Arctic Intermediate Water.