| 南太平洋降水中MSA的纬度分布及其分解的气温敏感性 |
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| 引用本文： | 效存德,孙俊英,秦大河,田立德,Whitlow S,Stievernard M.南太平洋降水中MSA的纬度分布及其分解的气温敏感性[J].海洋学报,2001,23(3):112-116. |
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| 作者姓名： | 效存德 孙俊英 秦大河 田立德 Whitlow S Stievernard M |
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| 作者单位： | 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 |
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| 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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| 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/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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| 关 键 词： | 甲基磺酸(MSA) MSA/nssSO42-比率 分布 |
| 文章编号： | 0253-4193(2001)03-0112-05 |
| 收稿时间： | 2000/4/28 0:00:00 |
| 修稿时间： | 2000年4月28日 |
Latitudinal distribution of MSA in precipitation over the southern Pacific Ocean and the sensitivity of its decomposition to temperature |
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| XIAO Cun-de,SUN Jun-ying,QIN Da-he,TIAN Li-de,WHITLOW S and STIEVERNARD M.Latitudinal distribution of MSA in precipitation over the southern Pacific Ocean and the sensitivity of its decomposition to temperature[J].Acta Oceanologica Sinica (in Chinese),2001,23(3):112-116. |
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| Authors: | XIAO Cun-de SUN Jun-ying QIN Da-he TIAN Li-de WHITLOW S and STIEVERNARD M |
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| Institution: | 1.Laboratory of Ice Core and Cold Regions Environment, Cold and Arid Regions Environmental and Engineering Research Institute, Lanzhou 730000, China2.Climate Change Research Center, Institute for the Study of Earth, Ocean and Space (EOS), University of New Hampshire, Durham, NH03824, USA3.Laboratorie de Modelisation du Climate et del Environment, Centred Etudes Nucleaires de Saclay(CEA), 91191, Gif-Sur Cedex, France |
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| 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/nssSO42- ratio is found to be sensitive to the temperature change,which is shown by δD values of the samples and the simultaneous temperature records. |
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| Keywords: | MSA MSA/nssSO 2- 4 ratio distribution |
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