Historical black carbon deposition in the Canadian High Arctic: a > 250-year long ice-core record from Devon Island
文献类型：期刊论文
| 作者 | Zdanowicz, Christian M.1; Proemse, Bernadette C.2; Edwards, Ross3,4; Wang Feiteng5; Hogan, Chad M.2; Kinnard, Christophe6; Fisher, David7 |
| 刊名 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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| 出版日期 | 2018-08-27 |
| 卷号 | 18期号:16页码:12345-12361 |
| ISSN号 | 1680-7316 |
| DOI | 10.5194/acp-18-12345-2018 |
| 通讯作者 | Zdanowicz, Christian M.(christian.zdanowicz@geo.uu.se) |
| 英文摘要 | Black carbon aerosol (BC), which is emitted from natural and anthropogenic sources (e.g., wildfires, coal burning), can contribute to magnify climate warming at high latitudes by darkening snow-and ice-covered surfaces, and subsequently lowering their albedo. Therefore, modeling the atmospheric transport and deposition of BC to the Arctic is important, and historical archives of BC accumulation in polar ice can help to validate such modeling efforts. Here we present a >250-year ice-core record of refractory BC (rBC) deposition on Devon ice cap, Canada, spanning the years from 1735 to 1992. This is the first such record ever developed from the Canadian Arctic. The estimated mean deposition flux of rBC on Devon ice cap for 1963-1990 is 0.2 mg m(-2) a(-1), which is at the low end of estimates from Greenland ice cores obtained using the same analytical method (similar to 0.1-4 mg m(-2) a(-1)). The Devon ice cap rBC record also differs from the Greenland records in that it shows only a modest increase in rBC deposition during the 20th century. In the Greenland records a pronounced rise in rBC is observed from the 1880s to the 1910s, which is largely attributed to midlatitude coal burning emissions. The deposition of contaminants such as sulfate and lead increased on Devon ice cap in the 20th century but no concomitant rise in rBC is recorded in the ice. Part of the difference with Greenland could be due to local factors such as melt-freeze cycles on Devon ice cap that may limit the detection sensitivity of rBC analyses in melt-impacted core samples, and wind scouring of winter snow at the coring site. Air back-trajectory analyses also suggest that Devon ice cap receives BC from more distant North American and Eurasian sources than Greenland, and aerosol mixing and removal during long-range transport over the Arctic Ocean likely masks some of the specific BC source-receptor relationships. Findings from this study suggest that there could be a large variability in BC aerosol deposition across the Arctic region arising from different transport patterns. This variability needs to be accounted for when estimating the large-scale albedo lowering effect of BC deposition on Arctic snow/ice. |
| 收录类别 | SCI |
| WOS关键词 | PARTICLE SOOT PHOTOMETER ; ATMOSPHERIC TRANSPORT ; BAFFIN-ISLAND ; SEA-ICE ; NORTHERN-HEMISPHERE ; FIRE HISTORY ; SNOW ; CAP ; GREENLAND ; SVALBARD |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| WOS记录号 | WOS:000442775100002 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557765 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zdanowicz, Christian M. |
| 作者单位 | 1.Uppsala Univ, Dept Earth Sci, S-75236 Uppsala, Sweden 2.Univ Tasmania, Sch Biol Sci, Hobart, Tas 7001, Australia 3.Curtin Univ, Phys & Astron, Perth, WA 6102, Australia 4.Univ Wisconsin, Dept Civil & Environm Engn, Madison, WI 53706 USA 5.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Gansu, Peoples R China 6.Univ Quebec Trois Rivieres, Dept Sci Environm, Trois Rivieres, PQ G9A 5H7, Canada 7.Univ Ottawa, Dept Earth Sci, 120 Univ, Ottawa, ON K1N 6N5, Canada |
| 推荐引用方式 GB/T 7714 | Zdanowicz, Christian M.,Proemse, Bernadette C.,Edwards, Ross,et al. Historical black carbon deposition in the Canadian High Arctic: a > 250-year long ice-core record from Devon Island[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(16):12345-12361. |
| APA | Zdanowicz, Christian M..,Proemse, Bernadette C..,Edwards, Ross.,Wang Feiteng.,Hogan, Chad M..,...&Fisher, David.(2018).Historical black carbon deposition in the Canadian High Arctic: a > 250-year long ice-core record from Devon Island.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(16),12345-12361. |
| MLA | Zdanowicz, Christian M.,et al."Historical black carbon deposition in the Canadian High Arctic: a > 250-year long ice-core record from Devon Island".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.16(2018):12345-12361. |
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来源：寒区旱区环境与工程研究所
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