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南太平洋降水中MSA的纬度分布及其分解的气温敏感性

, PP. 112-116

Keywords: 甲基磺酸(MSA),MSA/nssSO42-比率,分布

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Abstract:

对“中国第12次南极考察队”南太平洋航线上降水样品中MSA的分析指出,MSA含量由赤道海域向高纬海域呈递增趋势,其中在15°S附近海域以及60°~65°S之间表现为突然上升,正好对应上升洋流区.MSA/nssSO42-比率与δD密切相关,显示MSA向nssSO42-的转化速率敏感地依赖于温度变化.

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