Experimental observation of transient δ18O interaction between snow and advective airflow under various temperature gradient conditions
Stable water isotopes (δ18O) obtained from snow and ice samples of polar regions are used to reconstruct past climate variability, but heat and mass transport processes can affect the isotopic composition. Here we present an experimental study on the effect of airflow on the snow isotopic compositio...
Published in: | The Cryosphere |
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Copernicus Publications
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Online Access: | https://doi.org/10.5194/tc-11-1733-2017 https://www.the-cryosphere.net/11/1733/2017/tc-11-1733-2017.pdf https://doaj.org/article/2807692a0922474b9d70046544425823 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:2807692a0922474b9d70046544425823 2023-05-15T18:32:19+02:00 Experimental observation of transient δ18O interaction between snow and advective airflow under various temperature gradient conditions P. P. Ebner H. C. Steen-Larsen B. Stenni M. Schneebeli A. Steinfeld 2017-07-01 https://doi.org/10.5194/tc-11-1733-2017 https://www.the-cryosphere.net/11/1733/2017/tc-11-1733-2017.pdf https://doaj.org/article/2807692a0922474b9d70046544425823 en eng Copernicus Publications doi:10.5194/tc-11-1733-2017 1994-0416 1994-0424 https://www.the-cryosphere.net/11/1733/2017/tc-11-1733-2017.pdf https://doaj.org/article/2807692a0922474b9d70046544425823 undefined The Cryosphere, Vol 11, Pp 1733-1743 (2017) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2017 fttriple https://doi.org/10.5194/tc-11-1733-2017 2023-01-22T19:25:52Z Stable water isotopes (δ18O) obtained from snow and ice samples of polar regions are used to reconstruct past climate variability, but heat and mass transport processes can affect the isotopic composition. Here we present an experimental study on the effect of airflow on the snow isotopic composition through a snow pack in controlled laboratory conditions. The influence of isothermal and controlled temperature gradient conditions on the δ18O content in the snow and interstitial water vapour is elucidated. The observed disequilibrium between snow and vapour isotopes led to the exchange of isotopes between snow and vapour under non-equilibrium processes, significantly changing the δ18O content of the snow. The type of metamorphism of the snow had a significant influence on this process. These findings are pertinent to the interpretation of the records of stable isotopes of water from ice cores. These laboratory measurements suggest that a highly resolved climate history is relevant for the interpretation of the snow isotopic composition in the field. Article in Journal/Newspaper The Cryosphere Unknown The Cryosphere 11 4 1733 1743 |
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topic |
geo envir |
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geo envir P. P. Ebner H. C. Steen-Larsen B. Stenni M. Schneebeli A. Steinfeld Experimental observation of transient δ18O interaction between snow and advective airflow under various temperature gradient conditions |
topic_facet |
geo envir |
description |
Stable water isotopes (δ18O) obtained from snow and ice samples of polar regions are used to reconstruct past climate variability, but heat and mass transport processes can affect the isotopic composition. Here we present an experimental study on the effect of airflow on the snow isotopic composition through a snow pack in controlled laboratory conditions. The influence of isothermal and controlled temperature gradient conditions on the δ18O content in the snow and interstitial water vapour is elucidated. The observed disequilibrium between snow and vapour isotopes led to the exchange of isotopes between snow and vapour under non-equilibrium processes, significantly changing the δ18O content of the snow. The type of metamorphism of the snow had a significant influence on this process. These findings are pertinent to the interpretation of the records of stable isotopes of water from ice cores. These laboratory measurements suggest that a highly resolved climate history is relevant for the interpretation of the snow isotopic composition in the field. |
format |
Article in Journal/Newspaper |
author |
P. P. Ebner H. C. Steen-Larsen B. Stenni M. Schneebeli A. Steinfeld |
author_facet |
P. P. Ebner H. C. Steen-Larsen B. Stenni M. Schneebeli A. Steinfeld |
author_sort |
P. P. Ebner |
title |
Experimental observation of transient δ18O interaction between snow and advective airflow under various temperature gradient conditions |
title_short |
Experimental observation of transient δ18O interaction between snow and advective airflow under various temperature gradient conditions |
title_full |
Experimental observation of transient δ18O interaction between snow and advective airflow under various temperature gradient conditions |
title_fullStr |
Experimental observation of transient δ18O interaction between snow and advective airflow under various temperature gradient conditions |
title_full_unstemmed |
Experimental observation of transient δ18O interaction between snow and advective airflow under various temperature gradient conditions |
title_sort |
experimental observation of transient δ18o interaction between snow and advective airflow under various temperature gradient conditions |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/tc-11-1733-2017 https://www.the-cryosphere.net/11/1733/2017/tc-11-1733-2017.pdf https://doaj.org/article/2807692a0922474b9d70046544425823 |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
The Cryosphere, Vol 11, Pp 1733-1743 (2017) |
op_relation |
doi:10.5194/tc-11-1733-2017 1994-0416 1994-0424 https://www.the-cryosphere.net/11/1733/2017/tc-11-1733-2017.pdf https://doaj.org/article/2807692a0922474b9d70046544425823 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-11-1733-2017 |
container_title |
The Cryosphere |
container_volume |
11 |
container_issue |
4 |
container_start_page |
1733 |
op_container_end_page |
1743 |
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1766216417167802368 |