Articles | Volume 13, issue 1
Clim. Past, 13, 39–59, 2017
https://doi.org/10.5194/cp-13-39-2017

Special issue: International Partnerships in Ice Core Sciences (IPICS) Second...

Clim. Past, 13, 39–59, 2017
https://doi.org/10.5194/cp-13-39-2017
Research article
16 Jan 2017
Research article | 16 Jan 2017

Sea ice and pollution-modulated changes in Greenland ice core methanesulfonate and bromine

Olivia J. Maselli et al.

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Short summary
We analysed two Greenland ice cores for methanesulfonate (MSA) and bromine (Br) and concluded that both species are suitable proxies for local sea ice conditions. Interpretation of the records reveals that there have been sharp declines in sea ice in these areas in the past 250 years. However, at both sites the Br record deviates from MSA during the industrial period, raising questions about the value of Br as a sea ice proxy during recent periods of high, industrial, atmospheric acid pollution.