Primary sources control the variability of aerosol optical properties in the Antarctic Peninsula

被引：29

作者：

Asmi, Eija ^{[1
]}

Neitola, Kimmo ^{[1
,2
]}

Teinila, Kimmo ^{[1
]}

Rodriguez, Edith ^{[1
]}

Virkkula, Aki ^{[1
]}

Backman, John ^{[1
]}

Bloss, Matthew ^{[1
]}

Jokela, Jesse ^{[1
]}

Lihavainen, Heikki ^{[1
]}

De Leeuw, Gerrit ^{[1
,3
]}

Paatero, Jussi ^{[1
]}

Aaltonen, Veijo ^{[1
]}

Mei, Miguel ^{[4
]}

Gambarte, Gonzalo ^{[4
]}

Copes, Gustavo ^{[4
]}

Albertini, Marco ^{[4
]}

Perez Fogwill, German ^{[4
]}

Ferrara, Jonathan ^{[4
]}

Elena Barlasina, Maria ^{[4
]}

Sanchez, Ricardo ^{[4
]}

机构：

[1] Finnish Meteorol Inst, Helsinki, Finland

[2] Cyprus Inst, Energy Environm & Water Res Ctr, Nicosia, Cyprus

[3] Univ Helsinki, Dept Phys, Helsinki, Finland

[4] Serv Meteorol Nacl, Buenos Aires, DF, Argentina

来源：

TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY | 2018年 / 70卷

基金：

芬兰科学院;

关键词：

optical properties; chemistry; antarctic aerosols; BLACK CARBON; SEA-SALT; ATMOSPHERIC AEROSOLS; CHEMICAL-COMPOSITION; PARTICLE FORMATION; LIGHT-SCATTERING; TRACE-ELEMENTS; ICE; TRANSPORT; STATION;

D O I：

10.1080/16000889.2017.1414571

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Aerosol particle optical properties were measured continuously between years 2013-2015 at the Marambio station in the Antarctic Peninsula. Annual cycles of particle scattering and absorption were studied and explained using measured particle chemical composition and the analysis of air mass transport patterns. The particle scattering was found elevated during the winter but the absorption did not show any clear annual cycle. The aerosol single scattering albedo at lambda = 637 nm was on average 0.96 +/- 0.10, with a median of 0.99. Aerosol scattering Angstrom exponent increased during summer, indicating an increasing fraction of fine mode particles. The aerosol was mainly composed of sea salt, sulphate and crustal soil minerals, and most of the particle mass were in the coarse mode. Both the particle absorption and scattering were increased during high wind speeds. This was explained by the dominance of the primary marine sea-spray and wind-blown soil dust sources. In contrast, the back-trajectory analysis suggested that long-range transport has only a minor role as a source of absorbing aerosol at the peninsula.

引用

页数：16

共 69 条

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