Articles | Volume 11, issue 6
Research article
 | Highlight paper
03 Nov 2017
Research article | Highlight paper |  | 03 Nov 2017

Methanesulfonic acid (MSA) migration in polar ice: data synthesis and theory

Matthew Osman, Sarah B. Das, Olivier Marchal, and Matthew J. Evans


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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Matthew Osman on behalf of the Authors (09 Sep 2017)  Author's response   Manuscript 
ED: Publish subject to technical corrections (12 Sep 2017) by Becky Alexander
AR by Matthew Osman on behalf of the Authors (27 Sep 2017)  Author's response   Manuscript 
Short summary
We combine a synthesis of 22 ice core records and a model of soluble impurity transport to investigate the enigmatic, post-depositional migration of methanesulfonic acid in polar ice. Our findings suggest that migration may be universal across coastal regions of Greenland and Antarctica, though it is mitigated at sites with higher accumulation and (or) lower impurity content. Records exhibiting severe migration may still be useful for inferring decadal and lower-frequency climate variability.