Methane at the edge: jointly developing state-of-the-art high-precision methods to understand atmospheric methane emissions.

边缘甲烷：共同开发最先进的高精度方法来了解大气甲烷排放。

基本信息

批准号：
NE/M005836/1
负责人：
Euan Nisbet
金额：
$ 5.07万
依托单位：
Royal Holloway University of London
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2014
资助国家：
英国
起止时间：
2014 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=NE%2FM005836%2F1
关键词：
Methane edge jointly developing state

项目摘要

Methane emissions are a global problem, but much of the research focusses on Europe, North America and Australasia where the main research groups are based. Many areas are poorly studied. More interaction and intercalibration of laboratory measurement and field techniques between the main research centres is required to provide comparable data across these regions. Additionally emissions of greenhouse gases from China have risen rapidly over the past decade, but the sources of methane are not well quantified. Three areas of international collaboration have been identified that aim to improve interaction and apply new knowledge and techniques to a new measurement site in Hong Kong.Methane, which is the second-most important anthropogenic greenhouse gas, is produced by a wide variety of sources, ranging from gas leaks from natural gas and coal extraction and processing, to cows and agricultural sources, to natural wetlands and fires. The carbon isotopic ratio in methane emissions varies greatly depending on the source, from typically 'heavy' (richer in 13C) in combustion sources and many natural gasfield leaks, to typically 'light' in northern wetland emissions. This isotopic signature provides a method of idetifying methane sources in air arriving at remote sites and in mixed plumes from densely-populated urban centres.This proposal has three linked pump-priming components to help us measure methane emissions and understand them better. The first part is to link the isotopic measurements made in the UK and Europe much more closely with the measurements made by the US NOAA/INSTAAR consortium, who are world leaders in this work. In particular by intercomparing gas standards we can come to a common calibration, and thus produce a linked data set of background stations. Secondly, the work will link UK work with the Australian CSIRO group who are among the leading experts at field measurement using mobile vehicle-mounted systems. This will be particularly useful in skills transfer in studying sources such as gas wells (including fracking), coal mines, landfills and cow barns. Finally, as a proof of concept study, we will collaborate with the University of Hong Kong on a field test of the new methodologies. We intend to set up a measurement station on the extreme SE tip of the island, and sample winter north easterly air with back-trajectories, that has travelled along the Chinese coast from Shanghai, and before that from extreme NW China, where NOAA/INSTAAR have a long-running measurement time series. In summer the reverse flow occurs. In this way we can investigate if it is possible to quantify Chinese emissions of methane and find the isotopic signature of the source mix as it changes over the winter season.

甲烷排放是一个全球性问题，但大部分研究集中在主要研究小组所在的欧洲、北美和澳大利亚。许多领域的研究很少。主要研究中心之间需要更多的实验室测量和现场技术的互动和相互校准，以提供这些地区的可比数据。此外，过去十年中国的温室气体排放量迅速增加，但甲烷的来源却没有得到很好的量化。已经确定了三个国际合作领域，旨在改善互动并将新知识和技术应用到香港的新测量地点。甲烷是第二重要的人为温室气体，产生的来源多种多样，从天然气和煤炭开采和加工过程中的气体泄漏，到奶牛和农业来源，再到自然湿地和火灾。甲烷排放中的碳同位素比率根据来源的不同而有很大差异，从燃烧源和许多天然气田泄漏中典型的“重”（13C 含量较高）到北部湿地排放中的典型“轻”。这种同位素特征提供了一种识别到达偏远地点的空气中以及来自人口稠密的城市中心的混合羽流中的甲烷来源的方法。该提案具有三个相连的泵启动组件，以帮助我们测量甲烷排放并更好地了解它们。第一部分是将英国和欧洲进行的同位素测量与美国 NOAA/INSTAAR 联盟进行的测量更紧密地联系起来，该联盟是这项工作的世界领导者。特别是通过比较气体标准，我们可以进行共同校准，从而生成后台站的链接数据集。其次，这项工作将把英国的工作与澳大利亚 CSIRO 小组联系起来，澳大利亚 CSIRO 小组是使用移动车载系统进行现场测量的领先专家之一。这对于研究气井（包括水力压裂）、煤矿、垃圾填埋场和牛棚等来源的技能转移特别有用。最后，作为概念研究的验证，我们将与香港大学合作对新方法进行现场测试。我们打算在该岛的最东南端建立一个测量站，对冬季东北空气进行采样，该空气从上海沿着中国海岸传播，之前从中国西北部极端传播，NOAA/INSTAAR 在那里具有长期运行的测量时间序列。夏季出现逆流。通过这种方式，我们可以研究是否有可能量化中国的甲烷排放量，并找到源混合物在冬季变化时的同位素特征。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

AMAP Assessment Report 2015: Methane as an Arctic climate forcer. Arctic Monitoring and Assessment Program (AMAP) Oslo (Arcic Council)

2015 年 AMAP 评估报告：甲烷作为北极气候的推动者。

DOI：
发表时间：
2015
期刊：
影响因子：
0
作者：
Arora; V.
通讯作者：
V.

Supplementary Tables and Figures from

补充表格和数据来自

DOI：
http://dx.10.6084/m9.figshare.16881850
发表时间：
2021
期刊：
影响因子：
0
作者：
France J
通讯作者：
France J

On-site analysis of d13C- and d D-CH4 by laser spectroscopy for the allocation of source processes EGU2015-10562

通过激光光谱对 d13C- 和 d D-CH4 进行现场分析，用于分配源过程 EGU2015-10562

DOI：
发表时间：
2015
期刊：
影响因子：
0
作者：
Eyer; S.
通讯作者：
S.

d13C methane source signatures from tropical wetland and rice field emissions.

热带湿地和稻田排放的 d13C 甲烷源特征。

DOI：
http://dx.10.1098/rsta.2020.0449
发表时间：
2022
期刊：
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
影响因子：
0
作者：
France JL
通讯作者：
France JL

Real-time analysis of d13C- and dD-CH4 in ambient air with laser spectroscopy: method development and first intercomparison results

实时分析