Collaborative Research: Multi-Regional Scale Aircraft Observations of Methane and Carbon Dioxide Isotopic Fluxes in the Arctic

该提案直接涉及北冰洋冰盖丧失造成的陆地融化区和海洋系统释放的二氧化碳和甲烷。 将使用哈佛大学根据NSF MRI倡议开发的新光谱仪系统对甲烷和二氧化碳同位素通量进行空中测量。 该仪器具有足够的精确度和准确度，可以区分北极地区的热源和生物源碳，并测量N2O和水蒸气以及其他示踪剂。 NOAA？的大气湍流和分工司（ATDD）带来了他们的专业知识，在现场部署的机载通量系统，以及最佳空气湍流（BAT）探头的外地使命。 拟议活动的更广泛影响来自该项目独特的测量和监测战略，为国家碳监测网络奠定基础，这将是任何限制碳排放的方案或国际协议的关键组成部分。 该项目将填补一个技术空白，并提供一个设计通用的系统，允许以特定的碳相关问题为中心的无数未来应用，例如封存和森林化学，以及评估各国的总体碳库存。

This proposal directly addresses the release of carbon dioxide and methane from terrestrial melt zones and ocean systems that result from the loss of the Arctic Ocean ice cover. Airborne measurements of the fluxes of isotopologues of methane and carbon dioxide will be conducted using a new spectrometer system developed at Harvard under an NSF MRI initiative. This instrument has sufficient precision and accuracy to distinguish between thermogenic and biogenic sources of carbon in the Arctic, as well as measuring N2O and water vapor, as well as other tracers. NOAA?s Atmospheric Turbulence and Division Division (ATDD) bring their expertise in field deployments of airborne flux systems as well as a Best Air Turbulence (BAT) probe to the field mission. The broader impacts of the proposed activity emerge from the unique measurements and monitoring strategy of this project to develop a foundation for a national carbon monitoring network, which will be a key component of any program or international agreement to limit carbon emissions. The project will fill a technological void and deliver a system that is versatile by design, allowing for myriad future applications that are centered on specific carbon-related issues, such as sequestration and forest chemistry, as well as assessing the overall country-by-country inventory of carbon.