Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD032208 |
Compositions of Dust and Sea Salts in the Dome C and Dome Fuji Ice Cores From Last Glacial Maximum to Early Holocene Based on Ice-Sublimation and Single-Particle Measurements | |
Oyabu, I.1,2,3; Iizuka, Y.2; Kawamura, K.1,4,5; Wolff, E.6; Severi, M.7; Ohgaito, R.8; Abe-Ouchi, A.1,8,9; Hansson, M.3 | |
2020-02-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2020 |
卷号 | 125期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; Sweden; England; Italy |
英文摘要 | We analyzed the chemical compositions of dust and sea-salt particles in the EPICA Dome C (EDC) ice core during 26-7 kyr BP using an ice-sublimation technique and compared the results with existing data of the Dome Fuji (DF) ice core. Combined with ion concentration data, our data suggested similar sea-salt fluxes in both cores and significantly lower dust flux in the EDC core. The differences in modal size and aspect ratio of dust particles between the two cores support the dominance of Patagonian source suggested by earlier works. The compositions of calcic dust showed major change at similar to 17 kyr BP, possibly reflecting a relative increase in dust transported via the upper troposphere. The calcium sulfate fraction was higher in the DF core than in the EDC core after similar to 17 kyr BP, suggesting that higher Patagonian dust contribution to the DF region. Abundant NaCl particles were found in the DF core in comparison with the EDC core from the LGM to early Holocene, possibly because of the high concentration of terrestrial dust in the DF core that reduced acid availability for sea-salt modification. During the Holocene, the lower NaCl fraction and Cl-/Na+ ratio in the EDC core suggested that most Cl- was lost to the atmosphere from snow at Dome C, while it was preserved at Dome Fuji as NaCl and solid solution. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000519227000038 |
WOS关键词 | EAST ANTARCTICA ; MINERAL DUST ; SOUTHERN-OCEAN ; POLAR ICE ; ISOTOPIC CONSTRAINTS ; CLIMATE VARIABILITY ; EPICA ; TRANSPORT ; AEROSOL ; GREENLAND |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/280082 |
专题 | 气候变化 |
作者单位 | 1.Res Org Informat & Syst, Natl Inst Polar Res, Tokyo, Japan; 2.Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido, Japan; 3.Stockholm Univ, Dept Phys Geog, Stockholm, Sweden; 4.Grad Univ Adv Studies SOKENDAI, Dept Polar Sci, Tokyo, Japan; 5.Japan Agcy Marine Sci & Technol JAMSTEC, Yokosuka, Kanagawa, Japan; 6.Univ Cambridge, Dept Earth Sci, Cambridge, England; 7.Univ Florence, Dept Chem Ugo Schiff, Florence, Italy; 8.Japan Agcy MarineEarth Sci & Technol, Yokohama, Kanagawa, Japan; 9.Univ Tokyo, Atmosphere Ocean Res Inst, Kashiwa, Chiba, Japan |
推荐引用方式 GB/T 7714 | Oyabu, I.,Iizuka, Y.,Kawamura, K.,et al. Compositions of Dust and Sea Salts in the Dome C and Dome Fuji Ice Cores From Last Glacial Maximum to Early Holocene Based on Ice-Sublimation and Single-Particle Measurements[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(4). |
APA | Oyabu, I..,Iizuka, Y..,Kawamura, K..,Wolff, E..,Severi, M..,...&Hansson, M..(2020).Compositions of Dust and Sea Salts in the Dome C and Dome Fuji Ice Cores From Last Glacial Maximum to Early Holocene Based on Ice-Sublimation and Single-Particle Measurements.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(4). |
MLA | Oyabu, I.,et al."Compositions of Dust and Sea Salts in the Dome C and Dome Fuji Ice Cores From Last Glacial Maximum to Early Holocene Based on Ice-Sublimation and Single-Particle Measurements".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.4(2020). |
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