极地研究2012，Vol.24Issue(1)：1-7,7.DOI:10.3724/SP.J.1084.2012.00001
西北冰洋总碱度与溶解无机碳的分布
DISTRIBUTIONS OF DISSOLVE INORGANIC CARBON AND TOTAL ALKALINITY IN THE WESTERN ARCTIC OCEAN
摘要
Abstract
The 3rd Chinese National Arctic Research Expedition (CHINARE 2008) was carried out from July to September in 2008. During survey, a considerable number of seawater samples were taken for C02 parameters measurements (including total alkalinity (TA) , total dissolved inorganic carbon ( DIC) ). The distributions of C02 parameters in the Western Arctic Ocean were determined, and the according controlling factors were discussed. The ranges of summertime TA, nTA (nTA =TA ×35/S), DIC and nDIC (nDIC =DIC ×35/S) in the Western Arctic Ocean surface water were 1 757-2 229 μmnol · kg-1, 2 383-2 722 μmol · kg-1, 1 681-2 034 μmol · kg-1, 2 119- 2 600 μmol · kg-1, respectively. As a result of dilution from ice-melt water, the surface TA and DIC concentrations were rather low. TA from the upper 100m in the south of 78°N in the Western Arctic Ocean had a good correlation with salinity, showing a conservative behavior, and the distribution followed seawater-river mixing line at salinity > 30, then followed the mixing line of seawater (diluted by river water to salinity = 30) with the icemelt water. The distribution of DIC in the Chukchi Sea was dominated by biological production or respiration of organic matter, whereas the conservative mixing dominated the distribution of TA of mixed layer in the ice-free Canada Basin.关键词
总碱度/溶解无机碳/西北冰洋/分布/控制因子Key words
dissolved inorganic carbon/total alkalinity/Western Arctic Ocean/distribution/controlling factors引用本文复制引用
孙恒,高众勇,陈立奇,张凡..西北冰洋总碱度与溶解无机碳的分布[J].极地研究,2012,24(1):1-7,7.基金项目
国家自然科学基金项目(40976116)、国家海洋局第三海洋研究所基本科研业务费项目(2010011,2010001)、福建省自然科学基金(2011J01271)、国家海洋局青年海洋科学基金(2012538)、南北极环境综合考察与评估专项(2012-03-04,2012-04-04)、海洋公益性行业科研专项经费项目"北极海洋生态系统对海冰快速变化响应的评价技术(201105022)"和国际极地年中国行动计划项目资助 （40976116）
