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Summertime freshwater fractions in the surface water of the western Arctic Ocean evaluated from total alkalinity

【标题】Summertime freshwater fractions in the surface water of the western Arctic Ocean evaluated from total alkalinity

【Title】Summertime freshwater fractions in the surface water of the western Arctic Ocean evaluated from total alkalinity

【作者】 ZHANG Fan; 高众勇; 孙恒; 陈立奇

【Author】 Gao Zhongyong ; Sun Heng ; Chen Liqi

【期刊】极地研究

【Journal】Advances in Polar Science

【期刊年份】2012

【卷】23

【期】2

【关键词】 western Arctic Ocean; total alkalinity; freshwater fractions; sea-ice meltwater; river

【Keywords】 western Arctic Ocean; total alkalinity; freshwater fractions; sea-ice meltwater; river

【摘要】 As a quasi-conservative tracer, total alkalinity (TA) could trace freshwater and seawater. In this study, fractions of sea ice meltwater, river runoff, and seawater in the surface water of western Arctic Ocean are determined from salinity and total alkalinity relationships based on the Third Chinese Arctic Research Expedition during the summer of 2008. The largest fraction of sea ice meltwater was found around 75°N in the Canada Basin, the ice edge zone during survey, where ice concentrations increased northward gradually. The presence of river runoff was associated with the circulation, accumulated in the western Arctic Ocean.

【Abstract】 As a quasi-conservative tracer, total alkalinity (TA) could trace freshwater and seawater. In this study, fractions of sea ice meltwater, river runoff, and seawater in the surface water of western Arctic Ocean are determined from salinity and total alkalinity relationships based on the Third Chinese Arctic Research Expedition during the summer of 2008. The largest fraction of sea ice meltwater was found around 75°N in the Canada Basin, the ice edge zone during survey, where ice concentrations increased northward gradually. The presence of river runoff was associated with the circulation, accumulated in the western Arctic Ocean.

【基金/项目】

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