Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-12777-2018 |
An 800-year high-resolution black carbon ice core record from Lomonosovfonna, Svalbard | |
Osmont, Dimitri1,2,3; Wendl, Isabel A.1,2,3; Schmidely, Loic2,4; Sigl, Michael1,2; Vega, Carmen P.5,7,8; Isaksson, Elisabeth6; Schwikowski, Margit1,2,3 | |
2018-09-06 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:17页码:12777-12795 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; Sweden; Norway; Costa Rica |
英文摘要 | Produced by the incomplete combustion of fossil fuel and biomass, black carbon (BC) contributes to Arctic warming by reducing snow albedo and thus triggering a snow-albedo feedback leading to increased snowmelt. Therefore, it is of high importance to assess past BC emissions to better understand and constrain their role. However, only a few long-term BC records are available from the Arctic, mainly originating from Greenland ice cores. Here, we present the first long-term and high-resolution refractory black carbon (rBC) record from Svalbard, derived from the analysis of two ice cores drilled at the Lomonosovfonna ice field in 2009 (LF-09) and 2011 (LF-11) and covering 800 years of atmospheric emissions. Our results show that rBC concentrations strongly increased from 1860 on due to anthropogenic emissions and reached two maxima, at the end of the 19th century and in the middle of the 20th century. No increase in rBC concentrations during the last decades was observed, which is corroborated by atmospheric measurements elsewhere in the Arctic but contradicts a previous study from another ice core from Svalbard. While melting may affect BC concentrations during periods of high temperatures, rBC concentrations remain well preserved prior to the 20th century due to lower temperatures inducing little melt. Therefore, the preindustrial rBC record (before 1800), along with ammonium (NH4+), formate (HCOO-) and specific organic markers (vanillic acid, VA, and p-hydroxybenzoic acid, p-HBA), was used as a proxy for biomass burning. Despite numerous single events, no long-term trend was observed over the time period 1222-1800 for rBC and NH4+. In contrast, formate, VA, and p-HBA experience multi-decadal peaks reflecting periods of enhanced biomass burning. Most of the background variations and single peak events are corroborated by other ice core records from Greenland and Siberia. We suggest that the paleofire record from the LF ice core primarily reflects biomass burning episodes from northern Eurasia, induced by decadal-scale climatic variations. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000443861100001 |
WOS关键词 | LONG-TERM TRENDS ; FOREST-FIRES ; STABLE-ISOTOPES ; AROMATIC-ACIDS ; GREENLAND ICE ; ASIAN MONSOON ; PROXY RECORD ; ARCTIC HAZE ; SNOW ; CLIMATE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/17251 |
专题 | 地球科学 |
作者单位 | 1.Paul Scherrer Inst, Lab Environm Chem, CH-5232 Villigen, Switzerland; 2.Univ Bern, Oeschger Ctr Climate Change Res, CH-3012 Bern, Switzerland; 3.Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland; 4.Univ Bern, Climate & Environm Phys, CH-3012 Bern, Switzerland; 5.Uppsala Univ, Dept Earth Sci, S-75236 Uppsala, Sweden; 6.Fram Ctr, Norwegian Polar Inst, N-9296 Tromso, Norway; 7.Univ Costa Rica, Sch Phys, San Jose 115012060, Costa Rica; 8.Univ Costa Rica, Ctr Geophys Res, San Jose 115012060, Costa Rica |
推荐引用方式 GB/T 7714 | Osmont, Dimitri,Wendl, Isabel A.,Schmidely, Loic,et al. An 800-year high-resolution black carbon ice core record from Lomonosovfonna, Svalbard[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(17):12777-12795. |
APA | Osmont, Dimitri.,Wendl, Isabel A..,Schmidely, Loic.,Sigl, Michael.,Vega, Carmen P..,...&Schwikowski, Margit.(2018).An 800-year high-resolution black carbon ice core record from Lomonosovfonna, Svalbard.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(17),12777-12795. |
MLA | Osmont, Dimitri,et al."An 800-year high-resolution black carbon ice core record from Lomonosovfonna, Svalbard".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.17(2018):12777-12795. |
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