Articles | Volume 15, issue 2
https://doi.org/10.5194/tc-15-1087-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-15-1087-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
01 Mar 2021
Research article |
| 01 Mar 2021
| 01 Mar 2021
Brief communication: Spatial and temporal variations in surface snow chemistry along a traverse from coastal East Antarctica to the ice sheet summit (Dome A)
Key Laboratory of Geographic Information Science (Ministry of
Education), School of Geographic Sciences and State Key Laboratory of Estuarine and
Coastal Research, East China Normal University, Shanghai 200241, China
Polar Research Institute of China, Shanghai 200062, China
Hongmei Ma
Polar Research Institute of China, Shanghai 200062, China
Zhengyi Hu
Polar Research Institute of China, Shanghai 200062, China
Zhenlou Chen
Key Laboratory of Geographic Information Science (Ministry of
Education), School of Geographic Sciences and State Key Laboratory of Estuarine and
Coastal Research, East China Normal University, Shanghai 200241, China
Chunlei An
Polar Research Institute of China, Shanghai 200062, China
Su Jiang
Polar Research Institute of China, Shanghai 200062, China
Yuansheng Li
Polar Research Institute of China, Shanghai 200062, China
Tianming Ma
Polar Research Institute of China, Shanghai 200062, China
Jinhai Yu
Polar Research Institute of China, Shanghai 200062, China
Danhe Wang
Key Laboratory of Geographic Information Science (Ministry of
Education), School of Geographic Sciences and State Key Laboratory of Estuarine and
Coastal Research, East China Normal University, Shanghai 200241, China
Siyu Lu
Polar Research Institute of China, Shanghai 200062, China
Bo Sun
Polar Research Institute of China, Shanghai 200062, China
Meredith G. Hastings
Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, Rhode Island 02912, USA
Institute at Brown for Environment and Society, Brown University,
Providence, Rhode Island 02912, USA
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Lin Li, Aiguo Zhao, Tiantian Feng, Xiangbin Cui, Lu An, Ben Xu, Shinan Lang, Liwen Jing, Tong Hao, Jingxue Guo, Bo Sun, and Rongxing Li
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Jiajue Chai, Jack E. Dibb, Bruce E. Anderson, Claire Bekker, Danielle E. Blum, Eric Heim, Carolyn E. Jordan, Emily E. Joyce, Jackson H. Kaspari, Hannah Munro, Wendell W. Walters, and Meredith G. Hastings
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X. Cui, S. Lang, L. Li, and B. Sun
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Radar observation collected above Titan Dome of the East Antarctic Ice Sheet is used to describe ice geometry and test a hypothesis that ice beneath the dome is older than 1 million years. An important climate transition occurred between 1.25 million and 700 thousand years ago, and if ice old enough to study this period can be removed as an ice core, new insights into climate dynamics are expected. The new observations suggest the ice is too young – more likely 300 to 800 thousand years old.
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Short summary
It is important to understand atmospheric chemistry over Antarctica under a changing climate. Thus snow collected on a traverse from the coast to Dome A was used to investigate variations in snow chemistry. The non-sea-salt fractions of K+, Mg2+, and Ca2+ are associated with terrestrial inputs, and nssCl− is from HCl. In general, proportions of non-sea-salt fractions of ions to the totals are higher in the interior areas than on the coast, and the proportions are higher in summer than in winter.
It is important to understand atmospheric chemistry over Antarctica under a changing climate....
