百慕大群岛上空气溶胶物质的因子分析
-
摘要: 海洋上空中存在的气溶胶称为海洋气溶胶,它是由陆源和海源物质混合组成的。海洋气溶胶浓度变化由每立方米几微克到几百微克,颗粒直径从0.1μm到50μm,在大气中的滞留时间从几小时到几天,从而构成了一种多来源的复杂体系。海洋气溶胶的颗粒在从陆地向海洋和从海洋向陆地的地球化学过程中起着一种大气通道的桥梁作用。在海气交换中的物质交换和能量交换中扮演着重要角色。正确判别海洋气溶胶中的物质来源,评价各个来源的贡献通量,对研究大气生物地球化学循环以及人类活动对其影响有着重要的意义。本文采用因子分析方法[1],对百慕大上空的78个海洋气溶胶样品进行来源判别1),获得较为理想的结果。
-
Dixon,W.J.,BMDP Biomedical Computer Programs, Berkeley, Univ. of Calif,Press,1975. Chen, L,Q, end Duce, R,A.,The Sources of Sulfate, Vanadium and Mineral Matter in Aerosol Particles Over Bermuda. Atmos, Environ.,17 (1983), 10:2055-2064. Rahn, K,A,Borys, K,D, Shaw, G,E.,Schuts, L, and Jatnicke, R., Long Range Impact of Desert Aerosol on Atmospheric Chemistry:Two Examples, In Saharan Dust, 1978. Zoller, W,H., Gozdon, G.E.,Gladney E, S, and Jones,A, G.,The Sources and Distribution of Vanadium in the Atmospheric Trace Elements in the Environment Advances in Chemistry Series, American Chemical Society, 1973, 123:31-47. Duce, R,A. and Hoffman, G.L.,Atmospheric Vanadium Transport to the Ocesn. Atmospheric Environment, 1976, 10:989-996. Jickells, T., Knap, A., Church, T.,Galloway, J, and Miller, J.,Acid Rein on Bermuda Nature, 1982, 297, 55-57. Prospero, J, M., Savoie, D,L., Cerlson T,N, end Nees, R,T., Monitoring Saharan Aerosol Transport by Means of Atmospheric Turbidity Measurements, In Saharan Dua, 1979,171-186.
点击查看大图
计量
- 文章访问数: 657
- HTML全文浏览量: 6
- PDF下载量: 452
- 被引次数: 0