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Methanesulphonic acid loss during ice-core storage: recommendations based on a new diffusion coefficient
journal contribution
posted on 2023-05-17, 06:55 authored by Jason RobertsJason Roberts, Tasman van OmmenTasman van Ommen, Mark Curran, Tessa VanceTessa VanceThe loss of methanesulphonic acid (MSA) from stored ice cores can be significant over typical storage times, with diffusion to the ice-core surface controlling the loss. Methods for minimizing this loss are discussed and it is shown how measurements can be corrected by calculating the amount of MSA lost. A revised diffusion coefficient for MSA in solid ice, (4.1 x 10(-13)) +/- (2.5 x 10(-14)) m(2) s(-1), is derived to improve such MSA loss corrections.
History
Publication title
Journal of GlaciologyVolume
55Issue
193Pagination
784-788ISSN
0022-1430Department/School
Institute for Marine and Antarctic StudiesPublisher
Int Glaciol SocPlace of publication
Lensfield Rd, Cambridge, England, Cb2 1ErRepository Status
- Restricted