Post-depositional changes in snow isotope content: preliminary results of laboratory experiments
Isotopic content of the snow and firn thickness is assumed to be altered significantly due to the post-depositional (PD) mass- and isotope exchange with the atmospheric water vapor. If so, these effects should be accounted for in the ice core-based isotope-temperature paleo-reconstructions. In order...
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ftcopernicus:oai:publications.copernicus.org:cpd1821 2023-05-15T13:36:36+02:00 Post-depositional changes in snow isotope content: preliminary results of laboratory experiments Ekaykin, A. A. Hondoh, T. Lipenkov, V. Y. Miyamoto, A. 2018-09-26 application/pdf https://doi.org/10.5194/cpd-5-2239-2009 https://cp.copernicus.org/preprints/cp-2009-55/ eng eng doi:10.5194/cpd-5-2239-2009 https://cp.copernicus.org/preprints/cp-2009-55/ eISSN: 1814-9332 Text 2018 ftcopernicus https://doi.org/10.5194/cpd-5-2239-2009 2020-07-20T16:26:34Z Isotopic content of the snow and firn thickness is assumed to be altered significantly due to the post-depositional (PD) mass- and isotope exchange with the atmospheric water vapor. If so, these effects should be accounted for in the ice core-based isotope-temperature paleo-reconstructions. In order to study the intensity of the PD processes we set up a series of laboratory experiments. In this paper we describe in detail the experimental technique and briefly overview preliminary results. It is shown that the PD modifications in the upper layer of snow thickness are noticeably strong even under such a low temperature as −35°C (the value typical for the Central Antarctic summer). It is demonstrated that the PD isotopic changes in snow can be approximated as a linear function of the relative mass loss due to snow sublimation. Possible applications for improving the isotope-temperature paleo-reconstructions are shortly discussed. Text Antarc* Antarctic ice core Copernicus Publications: E-Journals Antarctic |
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Open Polar |
collection |
Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
Isotopic content of the snow and firn thickness is assumed to be altered significantly due to the post-depositional (PD) mass- and isotope exchange with the atmospheric water vapor. If so, these effects should be accounted for in the ice core-based isotope-temperature paleo-reconstructions. In order to study the intensity of the PD processes we set up a series of laboratory experiments. In this paper we describe in detail the experimental technique and briefly overview preliminary results. It is shown that the PD modifications in the upper layer of snow thickness are noticeably strong even under such a low temperature as −35°C (the value typical for the Central Antarctic summer). It is demonstrated that the PD isotopic changes in snow can be approximated as a linear function of the relative mass loss due to snow sublimation. Possible applications for improving the isotope-temperature paleo-reconstructions are shortly discussed. |
format |
Text |
author |
Ekaykin, A. A. Hondoh, T. Lipenkov, V. Y. Miyamoto, A. |
spellingShingle |
Ekaykin, A. A. Hondoh, T. Lipenkov, V. Y. Miyamoto, A. Post-depositional changes in snow isotope content: preliminary results of laboratory experiments |
author_facet |
Ekaykin, A. A. Hondoh, T. Lipenkov, V. Y. Miyamoto, A. |
author_sort |
Ekaykin, A. A. |
title |
Post-depositional changes in snow isotope content: preliminary results of laboratory experiments |
title_short |
Post-depositional changes in snow isotope content: preliminary results of laboratory experiments |
title_full |
Post-depositional changes in snow isotope content: preliminary results of laboratory experiments |
title_fullStr |
Post-depositional changes in snow isotope content: preliminary results of laboratory experiments |
title_full_unstemmed |
Post-depositional changes in snow isotope content: preliminary results of laboratory experiments |
title_sort |
post-depositional changes in snow isotope content: preliminary results of laboratory experiments |
publishDate |
2018 |
url |
https://doi.org/10.5194/cpd-5-2239-2009 https://cp.copernicus.org/preprints/cp-2009-55/ |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic ice core |
genre_facet |
Antarc* Antarctic ice core |
op_source |
eISSN: 1814-9332 |
op_relation |
doi:10.5194/cpd-5-2239-2009 https://cp.copernicus.org/preprints/cp-2009-55/ |
op_doi |
https://doi.org/10.5194/cpd-5-2239-2009 |
_version_ |
1766081424133193728 |