Atmospheric Black Carbon along a Cruise Path through the Arctic Ocean during the Fifth Chinese Arctic Research Expedition

Atmosphere

Jie Xing²  Lingen Bian¹  Qihou Hu²  Juan Yu²  Chen Sun² 

[1] Chinese Academy of Meteorological Sciences, Beijing 100081, China;Institute of Polar Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; E-Mails:

关键词: black carbon;    marine boundary layer;    the Arctic Ocean;    spatial variation;    seasonal variation;   

DOI  :  10.3390/atmos5020292

来源: mdpi

【 摘 要 】

From July to September 2012, during the fifth Chinese National Arctic Research Expedition (CHINARE), the concentrations of black carbon (BC) aerosols inside the marine boundary layer were measured by an in situ aethalometer. BC concentrations ranged from 0.20 ng∙m⁻³ to 1063.20 ng∙m⁻³, with an average of 75.74 ng∙m⁻³. The BC concentrations were significantly higher over the mid-latitude and coastal areas than those over the remote ocean and high latitude areas. The highest average concentration was found over offshore China (643.44 ng∙m⁻³) during the cruise, while the lowest average was found over the Arctic Ocean (5.96 ng∙m⁻³). BC aerosol was found mainly affected by the terrestrial input and displayed seasonal and spatial variations. Compared with the results from the third and fourth CHINARE of summer 2008, and summer 2010, the inter-annual variation of BC over the Arctic Ocean was negligible.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.