Remote sounding of air quality and greenhouse gases in arctic, urban environments and martian environments

北极、城市环境和火星环境中空气质量和温室气体的远程探测

• 批准号: 197367-2011
• 负责人: Strong, Kimberly
• 金额: $ 5.1万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=634106
• 关键词: Remote; sounding; air; quality; greenhouse

The overarching goal of my research is to provide a better understanding of the processes that determine atmospheric composition and drive atmospheric change, employing a variety of instruments and data analysis tools. This proposal describes an integrated research program that takes advantage of several new and exciting opportunities. It consists of three interconnected projects that employ infrared spectroscopic techniques. The first project involves Studies of Biomass Burning and Pollution Events using measurements made with Fourier transform infrared (FTIR) spectrometers deployed at two sites: the Toronto Atmospheric Observatory (TAO) at urban mid-latitudes and the Polar Environment Atmospheric Research Laboratory (PEARL) at Eureka, Nunavut in the remote high Arctic. These data will be used to investigate variability and trends in tropospheric composition, and will be compared to the GEOS-Chem model to characterize the origin, evolution, and impact of biomass burning and pollution events and to improve model emission inventories. The second project involves Studies of Greenhouse Gases in the context of the Total Carbon Column Observing Network (TCCON), which the PEARL FTIR spectrometer joined in June 2010. We will implement the network's data analysis protocol, defined by the extreme precision requirements for total column CO2. We will collaborate with other TCCON sites in using the data to study the carbon cycle, particularly the influence of regional fluxes and long-range transport on spatial and temporal gradients in CO2 and CH4. We will also provide valuable Arctic ground-truth measurements for Japan's GOSAT and NASA's OCO-2 missions. In August 2010, the Mars Atmospheric Trace Molecule Occultation Spectrometer (MATMOS) was selected for the 2016 NASA/ESA ExoMars mission. I am co-lead for the retrievals, which will be based upon TCCON techniques. The third project, studying the Chemical Composition of the Martian Atmosphere, will focus on development of MATMOS retrieval algorithms and their application to mapping global distributions of trace gases in the Martian atmosphere that can provide insight into geological and biogenic activity.

我的研究的首要目标是利用各种仪器和数据分析工具，更好地了解决定大气成分和驱动大气变化的过程。这项提案描述了一项综合研究计划，该计划利用了几个新的令人兴奋的机会。它由三个相互关联的项目组成，这些项目使用了红外光谱技术。第一个项目涉及使用部署在两个地点的傅里叶变换红外(FTIR)光谱仪进行的测量来研究生物质燃烧和污染事件：城市中纬度的多伦多大气天文台(TAO)和偏远高北极地区努纳武特尤里卡的极地环境大气研究实验室(PEAR)。这些数据将用于调查对流层组成的可变性和趋势，并将与GEOS-Chem模型进行比较，以描述生物质燃烧和污染事件的起源、演变和影响，并改进模型排放清单。第二个项目涉及在总碳柱观测网络(TCCON)的背景下研究温室气体，珍珠红外光谱仪于2010年6月加入了该网络。我们将实施网络的数据分析协议，该协议由二氧化碳总量的极高精度要求定义。我们将与TCCON的其他站点合作，利用这些数据来研究碳循环，特别是区域通量和长距离输送对二氧化碳和甲烷的时空梯度的影响。我们还将为日本的GOSAT和NASA的OCO-2任务提供有价值的北极地面真实测量。2010年8月，火星大气痕量分子掩星光谱仪(Matmos)入选2016美国宇航局/欧空局地外火星任务。我是检索的联合负责人，这将基于TCCON技术。第三个项目是研究火星大气的化学成分，重点是开发Matmos反演算法，并将其应用于绘制火星大气中微量气体的全球分布图，从而深入了解地质和生物活动。