Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1029/2011JD016612 |
Carbonaceous species and humic like substances (HULIS) in Arctic snowpack during OASIS field campaign in Barrow | |
Voisin, Didier1; Jaffrezo, Jean-Luc1; Houdier, Stephan1; Barret, Manuel1; Cozic, Julie1; King, Martin D.2; France, James L.2; Reay, Holly J.2; Grannas, Amanda3; Kos, Gregor4; Ariya, Parisa A.4; Beine, Harry J.5; Domine, Florent1,6,7 | |
通讯作者 | Voisin, Didier |
来源期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2012 |
卷号 | 117 |
英文摘要 | Snowpacks contain many carbonaceous species that can potentially impact on snow albedo and arctic atmospheric chemistry. During the OASIS field campaign, in March and April 2009, Elemental Carbon (EC), Water insoluble Organic Carbon (WinOC) and Dissolved Organic Carbon (DOC) were investigated in various types of snow: precipitating snows, remobilized snows, wind slabs and depth hoars. EC was found to represent less than 5% of the Total Carbon Content (TCC = EC + WinOC + DOC), whereas WinOC was found to represent an unusual 28 to 42% of TCC. Snow type was used to infer physical processes influencing the evolution of different fractions of DOC. DOC is highest in soil influenced indurated depth hoar layers due to specific wind related formation mechanisms in the early season. Apart from this specific snow type, DOC is found to decrease from precipitating snow to remobilized snow to regular depth hoar. This decrease is interpreted as due to cleaving photochemistry and physical equilibration of the most volatile fraction of DOC. Depending on the relative proportions of diamond dust and fresh snow in the deposition of the seasonal snowpack, we estimate that 31 to 76% of DOC deposited to the snowpack is reemitted back to the boundary layer. Under the assumption that this reemission is purely photochemical, we estimate an average flux of VOC out of the snowpack of 20 to 170 mu g(C) m(-2) h(-1). Humic like substances (HULIS), short chain diacids and aldehydes are quantified, and showed to represent altogether a modest (<20%) proportion of DOC, and less than 10% of DOC + WinOC. HULIS optical properties are measured and could be consistent with aged biomass burning or a possible marine source. |
类型 | Article |
语种 | 英语 |
国家 | France ; England ; USA ; Canada |
收录类别 | SCI-E |
WOS记录号 | WOS:000303678800001 |
WOS关键词 | SEMIVOLATILE ORGANIC-COMPOUNDS ; DICARBOXYLIC-ACIDS ; CONTAMINANT RELEASE ; SEASONAL-VARIATIONS ; CARBOXYLIC-ACIDS ; LIGHT-ABSORPTION ; HONO EMISSIONS ; ANTARCTIC SNOW ; ICE PARTICLES ; WATER |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
来源机构 | University of California, Davis ; University of London ; E17 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/173598 |
作者单位 | 1.Univ Grenoble 1, Grenoble CNRS 1, INSU, Lab Glaciol & Geophys Environm, F-38402 St Martin Dheres, France; 2.Royal Holloway Univ London, Dept Earth Sci, Egham, Surrey, England; 3.Villanova Univ, Dept Chem, Villanova, PA 19085 USA; 4.McGill Univ, Dept Chem, Montreal, PQ, Canada; 5.Univ Calif Davis, LAWR, Davis, CA 95616 USA; 6.Univ Laval, Takuvik Joint Int Lab, Quebec City, PQ G1K 7P4, Canada; 7.CNRS, F-75700 Paris, France |
推荐引用方式 GB/T 7714 | Voisin, Didier,Jaffrezo, Jean-Luc,Houdier, Stephan,et al. Carbonaceous species and humic like substances (HULIS) in Arctic snowpack during OASIS field campaign in Barrow[J]. University of California, Davis, University of London, E17,2012,117. |
APA | Voisin, Didier.,Jaffrezo, Jean-Luc.,Houdier, Stephan.,Barret, Manuel.,Cozic, Julie.,...&Domine, Florent.(2012).Carbonaceous species and humic like substances (HULIS) in Arctic snowpack during OASIS field campaign in Barrow.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,117. |
MLA | Voisin, Didier,et al."Carbonaceous species and humic like substances (HULIS) in Arctic snowpack during OASIS field campaign in Barrow".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 117(2012). |
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