南太平洋降水中MSA的纬度分布及其分解的气温敏感性

效存德; 孙俊英; 秦大河; 田立德; WhitlowS; StievernardM

南太平洋降水中MSA的纬度分布及其分解的气温敏感性

1.
中国科学院寒区旱区环境与工程研究所冰芯与寒区环境开放研究实验室, 甘肃兰州730000
2.
美国新罕布什尔大学地球、海洋与空间研究所气候变化研究中心, Durham, NH03824
3.
法国Saclay原子能研究中心气候模拟与环境实验室, 91191, Gif-Sur Cedex

基金项目: 国家科技攻关计划资助项目(980-927-01-05);国家自然科学基金委员会资助项目(49971021,40071025);中国科学院资助项目(KZ951-A1-205,KZCX2-303)

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出版历程
- 收稿日期: 2000-04-28
- 修回日期: 2000-09-04

Latitudinal distribution of MSA in precipitation over the southern Pacific Ocean and the sensitivity of its decomposition to temperature

1.
Laboratory of Ice Core and Cold Regions Environment, Cold and Arid Regions Environmental and Engineering Research Institute, Lanzhou 730000, China
2.
Climate Change Research Center, Institute for the Study of Earth, Ocean and Space (EOS), University of New Hampshire, Durham, NH03824, USA
3.
Laboratorie de Modelisation du Climate et del Environment, Centred Etudes Nucleaires de Saclay(CEA), 91191, Gif-Sur Cedex, France

摘要

摘要: 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/nssSO₄^2-比率与δD密切相关,显示MSA向nssSO₄^2-的转化速率敏感地依赖于温度变化.
- 甲基磺酸(MSA) /
- MSA/nssSO₄^2-比率 /
- 分布
Abstract: 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 subant arctic ocean,with two abruptly increasing areas corresponding to 15 Sand 60~65 S,respectively.The two areas coincide with the upwelling currents of the ocean.MSA/nssSO₄^2- ratio is found to be sensitive to the temperature change,which is shown by δD values of the samples and the simultaneous temperature records.
- MSA /
- MSA/nssSO₄^2- ratio /
- distribution

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参考文献(13)

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