Studies on polar non-sea-salt sulfate (nssSO42– ) and methanesulfonate(MSA) and their environmental indications

doi:10.13679/j.jdyj.20200033

Chinese Journal of Polar Research ›› 2021, Vol. 33 ›› Issue (2): 171-182.DOI: 10.13679/j.jdyj.20200033

Studies on polar non-sea-salt sulfate (nssSO₄^2– ) and methanesulfonate(MSA) and their environmental indications

Ma Hongmei¹, Sun Bo¹, Hu Zhengyi¹, Shi Guitao²

¹MNR Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, China; ²Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographic Sciences, East China Normal University, Shanghai 200241, China

Received:2020-05-12 Revised:2020-07-20 Online:2021-06-30 Published:2021-05-31

Abstract

Abstract: The main sulfur compounds of polar aerosols and snow-ice media are nssSO₄²⁻ and MSA. Spatially, nssSO₄²⁻ and MSA have obvious latitude effect characteristics. Temporally, nssSO₄²⁻ and MSA have interannual variation characteristics (high in summer and low in winter). The concentrations of nssSO₄²⁻and MSA in Antarctica ice cores increased during glacial periods, whereas the MSA concentration of Arctic ice cores decreased during glacial periods, although the nssSO₄²⁻ concentration still increases during glacial periods. Both nssSO₄²⁻ and MSA can be used to infer climate and environmental information such as marine primary productivity,atmospheric temperature, changes in sea ice extent and human influence. The prospect of using nssSO₄²⁻ and MSA to study global change is also discussed.

Key words: nssSO₄^2?, MSA, polar aerosol, ice core, climate and environmental change, global change

Ma Hongmei, Sun Bo, Hu Zhengyi, Shi Guitao. Studies on polar non-sea-salt sulfate (nssSO₄^2– ) and methanesulfonate(MSA) and their environmental indications[J]. Chinese Journal of Polar Research, 2021, 33(2): 171-182.

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Studies on polar non-sea-salt sulfate (nssSO₄^2– ) and methanesulfonate(MSA) and their environmental indications

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