Temperature-Driven Bubble Migration as Proxy for Internal Bubble Pressures and Bubble Trapping Function in Ice Cores
被引:5
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作者:
Dadic, R.
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机构:
Victoria Univ Wellington, Antarctic Res Ctr, Wellington, New ZealandVictoria Univ Wellington, Antarctic Res Ctr, Wellington, New Zealand
Dadic, R.
[1
]
Schneebeli, M.
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机构:
WSL Inst Snow & Avalanche Res SLF, Davos, SwitzerlandVictoria Univ Wellington, Antarctic Res Ctr, Wellington, New Zealand
Schneebeli, M.
[2
]
Wiese, M.
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机构:
WSL Inst Snow & Avalanche Res SLF, Davos, SwitzerlandVictoria Univ Wellington, Antarctic Res Ctr, Wellington, New Zealand
Wiese, M.
[2
]
Bertler, N. A. N.
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机构:
Victoria Univ Wellington, Antarctic Res Ctr, Wellington, New Zealand
GNS Sci, Lower Hutt, New ZealandVictoria Univ Wellington, Antarctic Res Ctr, Wellington, New Zealand
Bertler, N. A. N.
[1
,3
]
Salamatin, A. N.
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机构:
Kazan Fed Univ, Dept Appl Math, Kazan, RussiaVictoria Univ Wellington, Antarctic Res Ctr, Wellington, New Zealand
Salamatin, A. N.
[4
]
Theile, T. C.
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WSL Inst Snow & Avalanche Res SLF, Davos, SwitzerlandVictoria Univ Wellington, Antarctic Res Ctr, Wellington, New Zealand
Theile, T. C.
[2
]
Alley, R. B.
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机构:
Penn State Univ, Dept Geosci, University Pk, PA 16802 USAVictoria Univ Wellington, Antarctic Res Ctr, Wellington, New Zealand
Alley, R. B.
[5
]
Lipenkov, V. Ya.
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机构:
Arctic & Antarctic Res Inst, St Petersburg, RussiaVictoria Univ Wellington, Antarctic Res Ctr, Wellington, New Zealand
Lipenkov, V. Ya.
[6
]
机构:
[1] Victoria Univ Wellington, Antarctic Res Ctr, Wellington, New Zealand
[2] WSL Inst Snow & Avalanche Res SLF, Davos, Switzerland
[3] GNS Sci, Lower Hutt, New Zealand
[4] Kazan Fed Univ, Dept Appl Math, Kazan, Russia
[5] Penn State Univ, Dept Geosci, University Pk, PA 16802 USA
[6] Arctic & Antarctic Res Inst, St Petersburg, Russia
air bubbles;
ice cores;
pressure distribution;
bubble trapping function;
past changes;
ATMOSPHERIC METHANE CONCENTRATION;
ACCUMULATION-RATE;
AGE DIFFERENCE;
GAS-TRANSPORT;
AIR BUBBLES;
POLAR ICE;
ROSS SEA;
FIRN;
ANTARCTICA;
CLIMATE;
D O I:
10.1029/2019JD030891
中图分类号:
P4 [大气科学(气象学)];
学科分类号:
0706 ;
070601 ;
摘要:
Ice core data record significant and abrupt past climate changes that are associated with large and rapid changes in atmospheric greenhouse gases, such as methane. Due to the gradual close-off of gas bubbles and the relatively fast diffusion of gases within the firn column, even a discrete or quick step increase in air composition may be smoothed or integrated in the data; current laboratory analyses of gases consider the mean gas content value across all bubbles in a sample, rather than the content of individual bubbles. The convolution of the distribution of trapping ages with the history of atmospheric composition thus smears the measured gas record in each sample. We developed a nondestructive method to determine pressure distribution in all bubbles in a sample and estimate the shape of the trapping function derived from that bubble pressure distribution and site characteristics. Our method works not only for present conditions but also through varying paleo-atmospheric conditions, while providing accurate measurements of morphological bubble properties. The method is based on using temperature-driven air bubble migration as a proxy for the pressure of individual bubbles, which we combine with a model for bubbly ice densification to obtain the gas trapping functions and constrain the age distribution of air bubbles for past conditions, which are preserved at different depths. The trapping functions will help us to obtain a more accurate gas signal in the future that is less attenuated through the age distribution of the gas during the close-off process.
机构:
China Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
Minist Educ, Key Lab Marine Reservoir Evolut & Hydrocarbon Enr, Beijing 100083, Peoples R ChinaChina Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
Liu, Nannan
Yang, Yong
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机构:
Sinopec Corp, Res Inst Petr Explorat & Dev, Shengli Oilfield, Dongying 257015, Peoples R ChinaChina Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
Yang, Yong
Wang, Jian
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机构:
Univ Mines & Technol, Fac Mineral Resources Technol, Dept Petr Engn, Tarkwa, GhanaChina Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
Wang, Jian
Ju, Binshan
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h-index: 0
机构:
China Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
Key Lab Geol Evaluat & Dev Engn Unconvent Nat Gas, Beijing 100083, Peoples R ChinaChina Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
Ju, Binshan
Brantson, Eric Thompson
论文数: 0引用数: 0
h-index: 0
机构:
Univ Mines & Technol, Fac Mineral Resources Technol, Dept Petr Engn, Tarkwa, GhanaChina Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
Brantson, Eric Thompson
Tian, Yapeng
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
Minist Educ, Key Lab Marine Reservoir Evolut & Hydrocarbon Enr, Beijing 100083, Peoples R ChinaChina Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
Tian, Yapeng
Dong, Yintao
论文数: 0引用数: 0
h-index: 0
机构:
China Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
Minist Educ, Key Lab Marine Reservoir Evolut & Hydrocarbon Enr, Beijing 100083, Peoples R ChinaChina Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
Dong, Yintao
Mahlalela, B. M.
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机构:
China Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
Minist Educ, Key Lab Marine Reservoir Evolut & Hydrocarbon Enr, Beijing 100083, Peoples R ChinaChina Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
机构:
Beijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R ChinaBeijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R China
Liu, Zichu
Quan, Zhenhua
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机构:
Beijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R ChinaBeijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R China
Quan, Zhenhua
Zhao, Yaohua
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机构:
Beijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R China
Boyi New Energy Sci & Technol Dev Co Ltd, Zibo 255000, Peoples R ChinaBeijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R China
Zhao, Yaohua
Zhang, Wanlin
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机构:
Beijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R ChinaBeijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R China
Zhang, Wanlin
Yang, Mingguang
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机构:
Beijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R ChinaBeijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R China
Yang, Mingguang
Shi, Junzhang
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机构:
Beijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R ChinaBeijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R China
机构:
Alfred Wegener Inst Polar & Marine Res AWI, D-27568 Bremerhaven, GermanyUniv Bern, Inst Phys, CH-3012 Bern, Switzerland
Kipfstuhl, Sepp
Capron, Emilie
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机构:
CEA CNRS Univ Versailles St Quentin, CE Saclay, Inst Pierre Simon Laplace, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, FranceUniv Bern, Inst Phys, CH-3012 Bern, Switzerland
Capron, Emilie
Landais, Amaelle
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机构:
CEA CNRS Univ Versailles St Quentin, CE Saclay, Inst Pierre Simon Laplace, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, FranceUniv Bern, Inst Phys, CH-3012 Bern, Switzerland