首页|Seasonal variation of atmospheric elemental carbon aerosols at Zhongshan Station, East Antarctica

Seasonal variation of atmospheric elemental carbon aerosols at Zhongshan Station, East Antarctica

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Elemental carbon (or black carbon) (EC or BC) aerosols emitted by biomass burning and fossil fuel combustion could cause notable climate forcing. Southern Hemisphere biomass burning emissions have contributed substantially to EC deposition in Antarctica. Here, we present the seasonal variation of EC determined from aerosol samples acquired at Zhongshan Station (ZSS), East Antarctica. The concentration of EC in the atmosphere varied between 0.02 and 257.81 ng·m−3 with a mean value of 44.87±48.92 ng·m−3. The concentration of EC aerosols reached its peak in winter (59.04 ng·m−3) and was lowest (27.26 ng·m−3) in summer. Back trajectory analysis showed that biomass burning in southern South America was the major source of the EC found at ZSS, although some of it was derived from southern Australia, especially during winter. The 2019–2020 Australian bush fires had some influence on EC deposition at ZSS, especially during 2019, but the contribution diminished in 2020, leaving southern South America as the dominant source of EC.

Zhongshan Stationelemental carbon aerosolsseasonal variations

LIU Yan、LI Chuanjin、WANG Xiaoming、DING Minghu、DU Zhiheng、SHI Guitao、SUN Bo、KANG Shichang、XIAO Cunde

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State Key Laboratory of Cryospheric Science,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China

Institute of Meteorological Sciences in Tibetan Plateau and Polar Regions,Chinese Academy of Meteorological Sciences,Beijing 100081,China

Key Laboratory of Geographic Information Science,Ministry of Education,School of Geographic Sciences and State Key Lab of Estuarine and Coastal Research,East China Normal University,Shanghai 200241,China

Key Laboratory for Polar Science,MNR,Polar Research Institute of China,Shanghai 200062,China

State Key Laboratory of Earth Surface Processes and Resource Ecology,Beijing Normal University,Beijing 100875,China

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State Key Laboratory of Cryospheric Science Supporting Fund in ChinaInnovative Research Group in ChinaStrategic Priority Research Program of the Chinese Academy of SciencesNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of China

SKLCS-ZZ-20201110000001XDA19070501416710634170107141671073

2022

10.13679/j.advps.2022.0052

极地科学进展(英文版)
中国极地研究中心,国家海洋局极地考察办公室 (Polar Research Institute of China, Chinese Arctic and Antarctic Administration)

极地科学进展(英文版)

CSCD
影响因子：0.145
ISSN：1674-9928
年,卷(期)：2022.33(4)
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