CCPortal
DOI10.5194/acp-23-2293-2023
Disentangling methane and carbon dioxide sources and transport across the Russian Arctic from aircraft measurements
Narbaud, Clement; Paris, Jean-Daniel; Wittig, Sophie; Berchet, Antoine; Saunois, Marielle; Nedelec, Philippe; Belan, Boris D.; Arshinov, Mikhail Y.; Belan, Sergei B.; Davydov, Denis; Fofonov, Alexander; Kozlov, Artem
发表日期2023
ISSN1680-7316
EISSN1680-7324
起始页码2293
结束页码2314
卷号23期号:3页码:22
英文摘要A more accurate characterization of the sources and sinks of methane (CH4) and carbon dioxide (CO2) in the vulnerable Arctic environment is required to better predict climate change. A large-scale aircraft campaign took place in September 2020 focusing on the Siberian Arctic coast. CH4 and CO2 were measured in situ during the campaign and form the core of this study. Measured ozone (O-3) and carbon monoxide (CO) are used here as tracers. Median CH4 mixing ratios are fairly higher than the monthly mean hemispheric reference (Mauna Loa, Hawaii, US) with 1890-1969 ppb vs. 1887 ppb respectively, while CO2 mixing ratios from all flights are lower (408.09-411.50 ppm vs. 411.52 ppm). We also report on three case studies. Our analysis suggests that during the campaign the European part of Russia's Arctic and western Siberia were subject to long-range transport of polluted air masses, while the east was mainly under the influence of local emissions of greenhouse gases. The relative contributions of the main anthropogenic and natural sources of CH(4 )are simulated using the Lagrangian model FLEXPART in order to identify dominant sources in the boundary layer and in the free troposphere. On western terrestrial flights, air mass composition is influenced by emissions from wetlands and anthropogenic activities (waste management, fossil fuel industry, and to a lesser extent the agricultural sector), while in the east, emissions are dominated by freshwater, wetlands, and the oceans, with a likely contribution from anthropogenic sources related to fossil fuels. Our results highlight the importance of the contributions from freshwater and ocean emissions. Considering the large uncertainties associated with them, our study suggests that the emissions from these aquatic sources should receive more attention in Siberia.
学科领域Environmental Sciences; Meteorology & Atmospheric Sciences
语种英语
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号WOS:000935348600001
来源期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/273444
作者单位UDICE-French Research Universities; Universite Paris Cite; Universite Paris Saclay; CEA; Centre National de la Recherche Scientifique (CNRS); Centre National de la Recherche Scientifique (CNRS); Universite de Toulouse; Universite Toulouse III - Paul Sabatier
推荐引用方式
GB/T 7714
Narbaud, Clement,Paris, Jean-Daniel,Wittig, Sophie,et al. Disentangling methane and carbon dioxide sources and transport across the Russian Arctic from aircraft measurements[J],2023,23(3):22.
APA Narbaud, Clement.,Paris, Jean-Daniel.,Wittig, Sophie.,Berchet, Antoine.,Saunois, Marielle.,...&Kozlov, Artem.(2023).Disentangling methane and carbon dioxide sources and transport across the Russian Arctic from aircraft measurements.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(3),22.
MLA Narbaud, Clement,et al."Disentangling methane and carbon dioxide sources and transport across the Russian Arctic from aircraft measurements".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.3(2023):22.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Narbaud, Clement]的文章
[Paris, Jean-Daniel]的文章
[Wittig, Sophie]的文章
百度学术
百度学术中相似的文章
[Narbaud, Clement]的文章
[Paris, Jean-Daniel]的文章
[Wittig, Sophie]的文章
必应学术
必应学术中相似的文章
[Narbaud, Clement]的文章
[Paris, Jean-Daniel]的文章
[Wittig, Sophie]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。