Individual-particle analyses of coastal Antarctic aerosols

被引:14
|
作者
Mouri, H
Nagao, I
Okada, K
Koga, S
Tanaka, H
机构
[1] Meteorol Res Inst, Tsukuba, Ibaraki 305, Japan
[2] Nagoya Univ, Inst Hydrospher Atmospher Sci, Nagoya, Aichi 464, Japan
[3] Natl Inst Resources & Environm, Tsukuba, Ibaraki 305, Japan
关键词
D O I
10.1034/j.1600-0889.1999.t01-2-00002.x
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
Samplings of aerosol particles were made almost monthly throughout a year at a coastal Antarctic station Syowa (69 degrees 00'S, 39 degrees 35'E). With X-ray spectrometry. elemental composition of the individual particles is studied. The dominant aerosol constituents are sulfur species and sea salt. They are internally mixed with each other in most cases. We find seasonal variations in (1) the relative importance of sulfur and sea salt, and (2) the modification of sea salt by acidic materials. In the austral-summer samples, the number fractions of sulfur-rich particles and modified sea-salt particles are high, because the production of marine organosulfer was enhanced. In the austral-winter samples, the number fraction of unmodified sea-salt particles is high, because severe storms enhanced the production of sea salt.
引用
收藏
页码:603 / 611
页数:9
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