Spatiotemporal variations of monocarboxylic acids in snow layers along a transect from Zhongshan Station to Dome A, eastern Antarctica (EI)
文献类型：期刊论文
| 作者 | Li C.; Xiao C.; Shi G.; Dinga M.; Kang S.; Zhange L.; Hou S.; Sunc B.; Qina D.; Rena J. |
| 刊名 | Atmospheric Research
 |
| 出版日期 | 2015 |
| 卷号 | 158-159页码:79-87 |
| 英文摘要 | The spatiotemporal distributions of formate and acetate in snow layers along a transect from Zhongshan Station to Dome A are presented here. The mean concentrations of mono-carboxylic acids in summer surface snow layers were 2.931.72ngg-1and 10.075.87ngg-1for formate and acetate, respectively. In the snow pit samples, the concentrations varied between 0.470.14ngg-1and 3.124.24ngg-1for formate and between 5.311.55ngg-1and 13.294.64ngg-1for acetate. Spatially, the concentrations of both acids featured negative trends with increasing elevation and distance inland for the initial 600km of the transect, which implies that marine sources from the coastal oceans dominate the acid supply. Different distribution styles of the acids in the interior section (600-1248km) suggest that different source region and transporting mechanism may be responsible for the acid deposition in the interior regions. Seasonal variations in the amounts of acid in a coastal snow pit (29-A) indicate higher values in the summer and lower amounts in the winter. An enlarged source region and intensified production and transport mechanisms were primarily responsible for the higher values in summer. Longer records from the interior snow pits (29-L and 29-M) indicate elevated values in the 1970s and lower values in the 1980s and early 1990s. The increases in the mono-carboxylic acids since 1999 in snow pit 29-L and since 2005 in snow pit 29-M were temporally coincident with Chinese expedition activities in the area, suggesting that human activities were responsible for the increases in the acid load during recent decades. 2015 Elsevier B.V. All rights reserved. |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.casnw.net/handle/362004/27181]  |
| 专题 | 寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li C.,Xiao C.,Shi G.,et al. Spatiotemporal variations of monocarboxylic acids in snow layers along a transect from Zhongshan Station to Dome A, eastern Antarctica (EI)[J]. Atmospheric Research,2015,158-159:79-87. |
| APA | Li C..,Xiao C..,Shi G..,Dinga M..,Kang S..,...&Rena J..(2015).Spatiotemporal variations of monocarboxylic acids in snow layers along a transect from Zhongshan Station to Dome A, eastern Antarctica (EI).Atmospheric Research,158-159,79-87. |
| MLA | Li C.,et al."Spatiotemporal variations of monocarboxylic acids in snow layers along a transect from Zhongshan Station to Dome A, eastern Antarctica (EI)".Atmospheric Research 158-159(2015):79-87. |
入库方式： OAI收割
来源：寒区旱区环境与工程研究所
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