Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-4257-2019 |
Permafrost nitrous oxide emissions observed on a landscape scale using the airborne eddy-covariance method | |
Wilkerson, Jordan1; Dobosy, Ronald2,3; Sayres, David S.4; Healy, Claire5; Dumas, Edward2,3; Baker, Bruce2; Anderson, James G.1,4,5 | |
2019-04-03 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:7页码:4257-4268 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The microbial by-product nitrous oxide (N2O), a potent greenhouse gas and ozone depleting substance, has conventionally been assumed to have minimal emissions in permafrost regions. This assumption has been questioned by recent in situ studies which have demonstrated that some geologic features in permafrost may, in fact, have elevated emissions comparable to those of tropical soils. However, these recent studies, along with every known in situ study focused on permafrost N2O fluxes, have used chambers to examine small areas (< 50 m(2)). In late August 2013, we used the airborne eddy-covariance technique to make in situ N2O flux measurements over the North Slope of Alaska from a low-flying aircraft spanning a much larger area: around 310 km(2). We observed large variability of N2O fluxes with many areas exhibiting negligible emissions. Still, the daily mean averaged over our flight campaign was 3.8 (2.2-4.7) mg N(2)O( )m(-2 )d(-1) with the 90 % confidence interval shown in parentheses. If these measurements are representative of the whole month, then the permafrost areas we observed emitted a total of around 0.04-0.09 g m(-2) for August, which is comparable to what is typically assumed to be the upper limit of yearly emissions for these regions. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000463364000006 |
WOS关键词 | FLUX MEASUREMENTS ; QUALITY-ASSURANCE ; N2O EMISSIONS ; GAS FLUXES ; AIRCRAFT ; SOIL ; CARBON ; CH4 ; CALIBRATION |
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/182275 |
专题 | 地球科学 |
作者单位 | 1.Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA; 2.NOAA, Atmospher Turbulence & Diffus Div, ARL, Oak Ridge, TN 37830 USA; 3.ORAU, Oak Ridge, TN 37830 USA; 4.Harvard Univ, Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA; 5.Harvard Univ, Dept Earth & Planetary Sci, 12 Oxford St, Cambridge, MA 02138 USA |
推荐引用方式 GB/T 7714 | Wilkerson, Jordan,Dobosy, Ronald,Sayres, David S.,et al. Permafrost nitrous oxide emissions observed on a landscape scale using the airborne eddy-covariance method[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(7):4257-4268. |
APA | Wilkerson, Jordan.,Dobosy, Ronald.,Sayres, David S..,Healy, Claire.,Dumas, Edward.,...&Anderson, James G..(2019).Permafrost nitrous oxide emissions observed on a landscape scale using the airborne eddy-covariance method.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(7),4257-4268. |
MLA | Wilkerson, Jordan,et al."Permafrost nitrous oxide emissions observed on a landscape scale using the airborne eddy-covariance method".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.7(2019):4257-4268. |
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