Variability in oxygen and nutrients in South Pacific Antarctic Intermediate Water
Variability in oxygen and nutrients in South Pacific Antarctic Intermediate Water
复制标题
南太平洋南极中层水中氧气和营养物质的变化
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
Andrew G. Dickson
中科院分区：
文献类型：
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作者：
Joellen Russell;Andrew G. Dickson
根据沿三个WOCE样带收集的磷酸盐和硝酸盐数据计算初始氧表明，关于新南极中间水（AAIW）初始氧饱和的一般假设是不正确的。AAIW初始氧浓度呈欠饱和状态，且欠饱和程度逐年变化。使用氟氯化碳数据确定了不同纬度的AAIW的年龄，并给出了初始氧浓度变化的频率分析。本文提出了这种变化对全球碳循环可能产生的影响。
Calculation of the initial oxygen based on both phosphate and nitrate data collected along three WOCE transects indicates that the common assumption that new Antarctic Intermediate Water (AAIW) is initially saturated with respect to oxygen is incorrect. The initial oxygen concentration of AAIW is shown to be undersaturated, and the degree of undersaturation varies from year to year. Chlorofluorocarbon data is used to determined the age of AAIW at various latitudes and a frequency analysis of the variability in the initial oxygen concentrations is presented. Possible implications of this variability to the global carbon cycle are suggested.