Measurements of aerosol size-resolved hygroscopicity at sub and supermicron sizes

被引：19
|
作者：
Hegg, D. A.
Covert, D. S.
Crahan, K. K.
Jonsson, H. H.
Liu, Y.
机构：
[1] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA
[2] USN, Dept Meteorol, Postgrad Sch, Monterey, CA 93943 USA
[3] USN, Ctr Interdisciplinary Remotely Piloted Aircraft S, Postgrad Sch, Monterey, CA USA
[4] Pacific NW Natl Lab, Richland, WA 99352 USA
来源：
GEOPHYSICAL RESEARCH LETTERS | 2006年 / 33卷 / 21期
关键词：
D O I：
10.1029/2006GL026747
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Airborne measurements of size-resolved aerosol hygroscopicity are presented using an optical particle counting and sizing technique. The measurement range of 0.25 to 3.5 mu m is significantly greater, and extends to larger sizes, than previous in situ techniques. Preliminary results reveal a peak in aerosol hygroscopicity in the 0.5 - 1.5 mu m diameter size range in both marine and polluted aerosols. Geometric growth factors range from 1.3 to 1.5 and 1.1 to 1.3 for the sub and super-micron particles, respectively.
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页数：5
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