The chemical composition of fogs and intercepted clouds in the United States

被引:90
作者
Collett, JL [1 ]
Bator, A [1 ]
Sherman, DE [1 ]
Moore, KF [1 ]
Hoag, KJ [1 ]
Demoz, BB [1 ]
Rao, X [1 ]
Reilly, JE [1 ]
机构
[1] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA
基金
美国国家科学基金会;
关键词
fog; cloud; composition; pH; sulfate; nitrate; ammonium; sea salt;
D O I
10.1016/S0169-8095(02)00077-7
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
Over the past decade, the chemical compositions of fogs and intercepted clouds have been investigated at more than a dozen locations across the United States. Sampling sites have been located in the northeast, southeast, Rocky Mountain, and west coast regions of the US. They include both pristine and heavily polluted locations. Frontal/orographic clouds (warm and supercooled), intercepted coastal stratiform clouds, and radiation fogs have all been examined. Sample pH values range from below 3 to above 7. Major ions also exhibit a wide concentration range, with clouds at some locations exhibiting high sea salt concentrations, while composition at other locations is dominated by ammonium and sulfate or nitrate. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:29 / 40
页数:12
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