Spatial and temporal variations of fractionation of stable isotopes in East-Antarctic snow
Abstract Stable isotope ratios (δ 18 O and δD) in Antarctic snow and ice are basic proxy indices of climate in ice core studies. The relation between the ratios has important indicative significance for moisture sources. In general, the fractionation characteristics of the two isotopes vary with dif...
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Online Access: | http://dx.doi.org/10.1017/jog.2021.5 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143021000058 |
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crcambridgeupr:10.1017/jog.2021.5 2024-03-03T08:38:00+00:00 Spatial and temporal variations of fractionation of stable isotopes in East-Antarctic snow Li, Chuanjin Ren, Jiawen Shi, Guitao Pang, Hongxi Wang, Yetang Hou, Shugui Li, Zhongqin Du, Zhiheng Ding, Minghu Ma, Xiangyu Yang, Jiao Xie, Aihong Wang, Puyu Wang, Xiaoming Sun, Bo Xiao, Cunde 2021 http://dx.doi.org/10.1017/jog.2021.5 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143021000058 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Journal of Glaciology volume 67, issue 263, page 523-532 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 2021 crcambridgeupr https://doi.org/10.1017/jog.2021.5 2024-02-08T08:32:59Z Abstract Stable isotope ratios (δ 18 O and δD) in Antarctic snow and ice are basic proxy indices of climate in ice core studies. The relation between the ratios has important indicative significance for moisture sources. In general, the fractionation characteristics of the two isotopes vary with different meteorological and topographical conditions. This paper presents the spatial and temporal distribution of meteoric water line (MWL) slopes along a traverse from the Zhongshan Station (ZSS) to Dome A in East Antarctica. It is found that the slopes decrease with the increasing distance inland from the coast and the lowest slope occurred at Dome A, where the long-range transported moisture dominates and clear sky snowing have an influence. The slopes in different layers of the snowpack showed a decreasing trend with depth and this is attributed to the fractionation during the interstitial sublimation and re-condensation processes of the water vapor. Frost flower development on the interior plateau surface can greatly alter the depth evolution of the MWL slope. The coastal snow pits also go through the post-depositional smoothing effect, but their influences are not so significant as the inland regions. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica ice core Journal of Glaciology Cambridge University Press Antarctic East Antarctica Zhongshan ENVELOPE(76.371,76.371,-69.373,-69.373) Zhongshan Station ENVELOPE(76.371,76.371,-69.373,-69.373) Journal of Glaciology 67 263 523 532 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Li, Chuanjin Ren, Jiawen Shi, Guitao Pang, Hongxi Wang, Yetang Hou, Shugui Li, Zhongqin Du, Zhiheng Ding, Minghu Ma, Xiangyu Yang, Jiao Xie, Aihong Wang, Puyu Wang, Xiaoming Sun, Bo Xiao, Cunde Spatial and temporal variations of fractionation of stable isotopes in East-Antarctic snow |
topic_facet |
Earth-Surface Processes |
description |
Abstract Stable isotope ratios (δ 18 O and δD) in Antarctic snow and ice are basic proxy indices of climate in ice core studies. The relation between the ratios has important indicative significance for moisture sources. In general, the fractionation characteristics of the two isotopes vary with different meteorological and topographical conditions. This paper presents the spatial and temporal distribution of meteoric water line (MWL) slopes along a traverse from the Zhongshan Station (ZSS) to Dome A in East Antarctica. It is found that the slopes decrease with the increasing distance inland from the coast and the lowest slope occurred at Dome A, where the long-range transported moisture dominates and clear sky snowing have an influence. The slopes in different layers of the snowpack showed a decreasing trend with depth and this is attributed to the fractionation during the interstitial sublimation and re-condensation processes of the water vapor. Frost flower development on the interior plateau surface can greatly alter the depth evolution of the MWL slope. The coastal snow pits also go through the post-depositional smoothing effect, but their influences are not so significant as the inland regions. |
format |
Article in Journal/Newspaper |
author |
Li, Chuanjin Ren, Jiawen Shi, Guitao Pang, Hongxi Wang, Yetang Hou, Shugui Li, Zhongqin Du, Zhiheng Ding, Minghu Ma, Xiangyu Yang, Jiao Xie, Aihong Wang, Puyu Wang, Xiaoming Sun, Bo Xiao, Cunde |
author_facet |
Li, Chuanjin Ren, Jiawen Shi, Guitao Pang, Hongxi Wang, Yetang Hou, Shugui Li, Zhongqin Du, Zhiheng Ding, Minghu Ma, Xiangyu Yang, Jiao Xie, Aihong Wang, Puyu Wang, Xiaoming Sun, Bo Xiao, Cunde |
author_sort |
Li, Chuanjin |
title |
Spatial and temporal variations of fractionation of stable isotopes in East-Antarctic snow |
title_short |
Spatial and temporal variations of fractionation of stable isotopes in East-Antarctic snow |
title_full |
Spatial and temporal variations of fractionation of stable isotopes in East-Antarctic snow |
title_fullStr |
Spatial and temporal variations of fractionation of stable isotopes in East-Antarctic snow |
title_full_unstemmed |
Spatial and temporal variations of fractionation of stable isotopes in East-Antarctic snow |
title_sort |
spatial and temporal variations of fractionation of stable isotopes in east-antarctic snow |
publisher |
Cambridge University Press (CUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1017/jog.2021.5 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143021000058 |
long_lat |
ENVELOPE(76.371,76.371,-69.373,-69.373) ENVELOPE(76.371,76.371,-69.373,-69.373) |
geographic |
Antarctic East Antarctica Zhongshan Zhongshan Station |
geographic_facet |
Antarctic East Antarctica Zhongshan Zhongshan Station |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core Journal of Glaciology |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core Journal of Glaciology |
op_source |
Journal of Glaciology volume 67, issue 263, page 523-532 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2021.5 |
container_title |
Journal of Glaciology |
container_volume |
67 |
container_issue |
263 |
container_start_page |
523 |
op_container_end_page |
532 |
_version_ |
1792503633890246656 |