摘要
对“中国第 1 2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 1 5°S附近海域以及 6 0°～ 6 5°S之间表现为突然上升 ,正好对应上升洋流区 .MSA/nssSO2 -4 比率与δD密切相关 ,显示MSA向nssSO2 -4 的转化速率敏感地依赖于温度变化 .
Methane-sulfonic acid (MSA) measurement is done for the precipitation samples collected along the voyage course of the 12th Chinese National Antarctic Research Expedition, for the southern Pacific Ocean. MSA exhibits an increasing trend from tropic to subantarctic ocean, with two abruptly increasing areas corresponding to 15° S and 60°～65° S, respectively. The two areas coincide with the upwelling currents of the ocean. MSA/nssSO 2- 4 ratio is found to be sensitive to the temperature change, which is shown by δD values of the samples and the simultaneous temperature records.
出处
《海洋学报》
CAS
CSCD
北大核心
2001年第3期112-116,共5页
基金
国家科技攻关计划资助!项目 (980 - 92 7- 0 1- 0 5 )
国家自然科学基金!委员会资助项目 (4 99710 2 1
40 0 710 2 5 )
中国科学
