气候变化领域集成服务门户(CCPortal): Quantification of CH4coal mining emissions in Upper Silesia by passive airborne remote sensing observations with the Methane Airborne MAPper (MAMAP) instrument during the CO2and Methane (CoMet) campaign

CCPortal

DOI	10.5194/acp-21-17345-2021
	Quantification of CH4coal mining emissions in Upper Silesia by passive airborne remote sensing observations with the Methane Airborne MAPper (MAMAP) instrument during the CO2and Methane (CoMet) campaign
	Krautwurst S.; Gerilowski K.; Borchardt J.; Wildmann N.; Gałkowski M.; Swolkień J.; Marshall J.; Fiehn A.; Roiger A.; Ruhtz T.; Gerbig C.; Necki J.; Burrows J.P.; Fix A.; Bovensmann H.
发表日期	2021
ISSN	1680-7316
起始页码	17345
结束页码	17371
卷号	21 期号:23
英文摘要	Methane (CH4) is the second most important anthropogenic greenhouse gas, whose atmospheric concentration is modulated by human-induced activities, and it has a larger global warming potential than carbon dioxide (CO2). Because of its short atmospheric lifetime relative to that of CO2, the reduction of the atmospheric abundance of CH4 is an attractive target for short-term climate mitigation strategies. However, reducing the atmospheric CH4 concentration requires a reduction of its emissions and, therefore, knowledge of its sources. For this reason, the CO2 and Methane (CoMet) campaign in May and June 2018 assessed emissions of one of the largest CH4 emission hot spots in Europe, the Upper Silesian Coal Basin (USCB) in southern Poland, using top-down approaches and inventory data. In this study, we will focus on CH4 column anomalies retrieved from spectral radiance observations, which were acquired by the 1D nadir-looking passive remote sensing Methane Airborne MAPper (MAMAP) instrument, using the weighting-function-modified differential optical absorption spectroscopy (WFM-DOAS) method. The column anomalies, combined with wind lidar measurements, are inverted to cross-sectional fluxes using a mass balance approach. With the help of these fluxes, reported emissions of small clusters of coal mine ventilation shafts are then assessed. The MAMAP CH4 column observations enable an accurate assignment of observed fluxes to small clusters of ventilation shafts. CH4 fluxes are estimated for four clusters with a total of 23 ventilation shafts, which are responsible for about 40% of the total CH4 mining emissions in the target area. The observations were made during several overflights on different days. The final average CH4 fluxes for the single clusters (or sub-clusters) range from about 1 to 9tCH4h-1 at the time of the campaign. The fluxes observed at one cluster during different overflights vary by as much as 50% of the average value. Associated errors (1σ) are usually between 15% and 59% of the average flux, depending mainly on the prevailing wind conditions, the number of flight tracks, and the magnitude of the flux itself. Comparison to known hourly emissions, where available, shows good agreement within the uncertainties. If only emissions reported annually are available for comparison with the observations, caution is advised due to possible fluctuations in emissions during a year or even within hours. To measure emissions even more precisely and to break them down further for allocation to individual shafts in a complex source region such as the USCB, imaging remote sensing instruments are recommended. © 2021 Sven Krautwurst et al.
语种	英语
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/246409
作者单位	Institute of Environmental Physics (IUP), University of Bremen, Bremen, Germany; Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre, Oberpfaffenhofen, Germany; Department Biogeochemical Signals, Max Planck Institute for Biogeochemistry, Jena, Germany; Faculty of Mining and Geoengineering, AGH University of Science and Technology, Krakow, Poland; Institute for Space Sciences, Free University of Berlin, Berlin, Germany; Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Krakow, Poland
推荐引用方式 GB/T 7714	Krautwurst S.,Gerilowski K.,Borchardt J.,et al. Quantification of CH4coal mining emissions in Upper Silesia by passive airborne remote sensing observations with the Methane Airborne MAPper (MAMAP) instrument during the CO2and Methane (CoMet) campaign[J],2021,21(23).
APA	Krautwurst S..,Gerilowski K..,Borchardt J..,Wildmann N..,Gałkowski M..,...&Bovensmann H..(2021).Quantification of CH4coal mining emissions in Upper Silesia by passive airborne remote sensing observations with the Methane Airborne MAPper (MAMAP) instrument during the CO2and Methane (CoMet) campaign.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(23).
MLA	Krautwurst S.,et al."Quantification of CH4coal mining emissions in Upper Silesia by passive airborne remote sensing observations with the Methane Airborne MAPper (MAMAP) instrument during the CO2and Methane (CoMet) campaign".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.23(2021).