Flow-weighted values of runoff tracers (δ18O, DOC, Ba, alkalinity) from the six largest Arctic rivers
Flow-weighted values of runoff tracers (δ18O, DOC, Ba, alkalinity) from the six largest Arctic rivers
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DOI：
10.1029/2008gl035007
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发表时间：
2008-09-20
影响因子：
5.2
通讯作者：
Peterson, B. J.
中科院分区：
文献类型：
--
作者：
Cooper, L. W.;McClelland, J. W.;Peterson, B. J.
我们提供来自北极六大河流（鄂毕河、叶尼塞河、勒拿河、科雷马河、育空河和麦肯齐河）的 Delta 18O(H2O)、溶解有机碳 (DOC)、溶解钡和总碱度的新流量加权数据。这些可用于追踪径流的数据基于 2003 年至 2006 年期间协调收集的数据，这些数据按时间分布，以捕获河流流量和示踪值的相关季节性动态。个别样本表明每条河流对北冰洋的贡献存在显着差异。使用这些新的流量加权估计应该可以减少北冰洋上部淡水输送和命运分析的不确定性，包括与北大西洋温盐环流的联系以及区域水团分析。对这些主要河流向北冰洋贡献的全球重要陆源 DOC 通量的矿化率的评估也应该是可能的。
We present new flow-weighted data for delta 18O(H2O), dissolved organic carbon (DOC), dissolved barium and total alkalinity from the six largest Arctic rivers: the Ob', Yenisey, Lena, Kolyma, Yukon and Mackenzie. These data, which can be used to trace runoff, are based upon coordinated collections between 2003 and 2006 that were temporally distributed to capture linked seasonal dynamics of river flow and tracer values. Individual samples indicate significant variation in the contributions each river makes to the Arctic Ocean. Use of these new flow-weighted estimates should reduce uncertainties in the analysis of freshwater transport and fate in the upper Arctic Ocean, including the links to North Atlantic thermohaline circulation, as well as regional water mass analysis. Additional improvements should also be possible for assessing the mineralization rate of the globally significant flux of terrigenous DOC contributed to the Arctic Ocean by these major rivers.