The preservation of methanesulphonic acid in frozen ice-core samples
ABSTRACT. Ice-core records of methanesulphonic acid (MSA) provide a potentially powerful tool for producing proxy records of sea ice, a critical but poorly understood component of the Earth’s climate system. However, MSA is able to diffuse through solid ice, and here we examine the effect of two dif...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.634.3986 2023-05-15T16:38:40+02:00 The preservation of methanesulphonic acid in frozen ice-core samples The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.634.3986 http://www.igsoc.org/journal/54/187/j07j145.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.634.3986 http://www.igsoc.org/journal/54/187/j07j145.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.igsoc.org/journal/54/187/j07j145.pdf text ftciteseerx 2016-01-08T15:37:46Z ABSTRACT. Ice-core records of methanesulphonic acid (MSA) provide a potentially powerful tool for producing proxy records of sea ice, a critical but poorly understood component of the Earth’s climate system. However, MSA is able to diffuse through solid ice, and here we examine the effect of two different methods of frozen storage on the preservation of MSA in archived ice-core samples. Re-analysis of archived ice sticks confirms that MSA diffuses out of ice cores archived in this manner. Despite MSA losses of up to 39 % after 7 years storage, the ice sticks studied here preserve much of the variability of the original MSA record, suggesting that useful proxy records can be obtained from archived ice sticks. Furthermore, re-analysis of ice-core samples that had been refrozen into discrete bottled samples for storage demonstrates that it is possible to archive ice samples in a way that prevents MSA loss. In this case, accurate records of MSA variability and concentration were preserved even over storage periods of 15 years. This has important implications for the storage of ice cores and subsequent determination of MSA, and demonstrates that ice storage history needs to be considered when interpreting MSA records. Text ice core Sea ice Unknown |
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Open Polar |
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ftciteseerx |
language |
English |
description |
ABSTRACT. Ice-core records of methanesulphonic acid (MSA) provide a potentially powerful tool for producing proxy records of sea ice, a critical but poorly understood component of the Earth’s climate system. However, MSA is able to diffuse through solid ice, and here we examine the effect of two different methods of frozen storage on the preservation of MSA in archived ice-core samples. Re-analysis of archived ice sticks confirms that MSA diffuses out of ice cores archived in this manner. Despite MSA losses of up to 39 % after 7 years storage, the ice sticks studied here preserve much of the variability of the original MSA record, suggesting that useful proxy records can be obtained from archived ice sticks. Furthermore, re-analysis of ice-core samples that had been refrozen into discrete bottled samples for storage demonstrates that it is possible to archive ice samples in a way that prevents MSA loss. In this case, accurate records of MSA variability and concentration were preserved even over storage periods of 15 years. This has important implications for the storage of ice cores and subsequent determination of MSA, and demonstrates that ice storage history needs to be considered when interpreting MSA records. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
title |
The preservation of methanesulphonic acid in frozen ice-core samples |
spellingShingle |
The preservation of methanesulphonic acid in frozen ice-core samples |
title_short |
The preservation of methanesulphonic acid in frozen ice-core samples |
title_full |
The preservation of methanesulphonic acid in frozen ice-core samples |
title_fullStr |
The preservation of methanesulphonic acid in frozen ice-core samples |
title_full_unstemmed |
The preservation of methanesulphonic acid in frozen ice-core samples |
title_sort |
preservation of methanesulphonic acid in frozen ice-core samples |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.634.3986 http://www.igsoc.org/journal/54/187/j07j145.pdf |
genre |
ice core Sea ice |
genre_facet |
ice core Sea ice |
op_source |
http://www.igsoc.org/journal/54/187/j07j145.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.634.3986 http://www.igsoc.org/journal/54/187/j07j145.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766028986314391552 |