Sulfur aerosols in the Arctic, Antarctic, and Tibetan Plateau: Current knowledge and future perspectives
Sulfur aerosols in the Arctic, Antarctic, and Tibetan Plateau: Current knowledge and future perspectives
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北极、南极和青藏高原的硫气溶胶：当前知识和未来前景
DOI：
10.1016/j.earscirev.2021.103753
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发表时间：
2021
影响因子：
12.1
通讯作者：
Zhiyuan Cong
中科院分区：
文献类型：
--
作者：
Qiaomin Pei;Eri Saikawa;Susan Kaspari;David Widory;Chuanfeng Zhao;Guangming Wu;Mark Loewen;Xin Wan;Shichang Kang;Xiaoping Wang;Yan-Lin Zhang;Zhiyuan Cong
硫磺气溶胶主要由硫酸盐和甲烷磺酸(MSA)组成，对地球的辐射平衡、生物地球化学循环和生态系统产生重大影响，特别是在环境脆弱的极地地区。为了更好地了解人类活动与气候变化之间的关系，对北极18个地点、南极22个地点和青藏高原25个地点的硫酸盐和MSA的浓度和同位素组成进行了全面的综述。总结了硫气溶胶的时空变异性及其控制其浓度的潜在因素，利用硫同位素来识别人为输入与自然输入的重要性，并利用冰芯来重建大气硫酸盐的古演化。最后，讨论了有机硫气溶胶未来研究的必要性、硫气溶胶的混合状态、硫气溶胶的沉积通量和速度、生物质燃烧的潜在排放量以及北极、南极和青藏高原硫气溶胶浓度的预期趋势。
Sulfur aerosols, mainly composed of sulfate and methanesulfonic acid (MSA), significantly affect the Earth’s radiation balance, biogeochemical cycles and ecosystems, especially in the polar regions with vulnerable environments. To better understand the relationship between anthropogenic activities and climate change, a comprehensive review is presented, covering sulfate and MSA concentrations and isotope composition from 18 sites in the Arctic, 22 sites in the Antarctic and 25 sites in the Tibetan Plateau. The spatio-temporal variability of sulfur aerosols and the potential factors controlling their concentrations are summarized, sulfur isotopes are used to identify the importance of anthropogenic vs. natural inputs, and ice cores are employed to reconstruct the paleo-evolution of atmospheric sulfates. Finally, this review discusses the need for future research on organosulfur aerosols, the mixing state of sulfur aerosols, their deposition fluxes and velocities, potential emissions by biomass burning, and the anticipated trends in sulfur aerosol concentrations in the Arctic, Antarctic, and Tibetan Plateau.