Aerosol optical properties at urban and coastal sites in Shandong Province, Northern China
Aerosol optical properties at urban and coastal sites in Shandong Province, Northern China
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中国北方山东省城市和沿海地区的气溶胶光学特性
DOI：
10.1016/j.atmosres.2016.12.011
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发表时间：
2017-05
影响因子：
5.5
通讯作者：
WenxingWang
中科院分区：
文献类型：
--
作者：
Xinfeng Wang;Liang Wen;Tong Zhao;WenxingWang
In-situ observations of aerosol optical properties were conducted in Jinan, an urban site, from December 2013 to May 2014 and on Tuoji Island, a coastal site, from December 2014 to January 2015; both locations are located in Shandong Province, Northern China. Aerosol optical properties, such as the scattering coefficient (σsp), absorption coefficient (σap) and single-scattering albedo (ω), were obtained using nephelometer and aethalometer. The mean values (± standard deviation) for σspat 550 nm and σapat 532 nm, were 204 ± 188 Mm− 1and 43 ± 33 Mm− 1, respectively, in Jinan and 210 ± 246 Mm− 1and 8 ± 6 Mm− 1on Tuoji Island, respectively. The average ω at 532 nm was 0.80 ± 0.09 in Jinan and 0.93 ± 0.04 on Tuoji Island. Pronounced diurnal cycles were observed at both locations for σsp, σapand ω, but the diurnal cycles at the two locations exhibited distinct properties for some of the aerosol optical parameters. The values of σspand σappeaked between 0800 and 1100 local time (LT) due to traffic emissions and low wind speeds at both locations. And a unimodal ω diurnal cycle, which peaked between 1000 and 1400 LT, was observed in the spring in Jinan. This spring diurnal pattern was mainly related to secondary aerosol formation and aging processes. The high σspand σapvalues in Jinan winter were accompanied by calm winds (< 2 m/s) from 0° to 90°, while the high σspand σapvalues on Tuoji Island were observed during the period of stronger wind speeds (> 2 m/s) from 180° to 270°. This indicates that local emissions were a key source of strongly absorbing and scattering aerosols in Jinan during heating period, whereas, high σspand σapvalues on Tuoji Island were mainly influenced by middle- and long-distance transport from Shandong Province and the Jing-Jin-Ji region. Additionally, middle- and long-distance regional transport from direction at 180° to 270° occasionally enhanced the σspand σapvalues in the spring at Jinan after heating period. The σspvalues in Jinan and Tuoji Island both exhibited relatively profound correlation with the accumulation-mode particle number concentrations.
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影响因子：
5.5
作者：
Xu, Junwei;Tao, Jun;Zhang, Renjian;Cheng, Tiantao;Leng, Chunpeng;Chen, Jianmin;Huang, Guanghan;Li, Xiang;Zhu, Zhaoqin
通讯作者：
Zhu, Zhaoqin
影响因子：
6.3
作者：
R. Garland;Hong Yang;O. Schmid;D. Rose;A. Nowak;P. Achtert;A. Wiedensohler;N. Takegawa;K. Kita;Y. Miyazaki;Y. Kondo;Min Hu;M. Shao;L. Zeng;Y. Zhang;M. Andreae;U. Pöschl
通讯作者：
R. Garland;Hong Yang;O. Schmid;D. Rose;A. Nowak;P. Achtert;A. Wiedensohler;N. Takegawa;K. Kita;Y. Miyazaki;Y. Kondo;Min Hu;M. Shao;L. Zeng;Y. Zhang;M. Andreae;U. Pöschl
影响因子：
6.3
作者：
H. Lyamani;F. Olmo;L. Alados-Arboledas
通讯作者：
H. Lyamani;F. Olmo;L. Alados-Arboledas
影响因子：
--
作者：
Zhijun Wu;Min Hu;Shang Liu;B. Wehner;S. Bauer;Andreas Ma ßling;A. Wiedensohler;T. Petäjä;
通讯作者：
Zhijun Wu;Min Hu;Shang Liu;B. Wehner;S. Bauer;Andreas Ma ßling;A. Wiedensohler;T. Petäjä;
香港城市冬季尺寸分辨粒子的光学特性
影响因子：
5.5
作者：
Lai, S. C.;Lee, S. C.;Yau, P. S.;Huang, Y.;Cheng, Y.;Wang, T.;Xu, Z.;Yuan, C.;Zhang, Y. Y.
通讯作者：
Zhang, Y. Y.