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: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=666105
• 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.

我的研究的总体目标是提供一个更好的理解，确定大气成分和驱动大气变化的过程，采用各种仪器和数据分析工具。该提案描述了一个综合研究计划，利用几个新的和令人兴奋的机会。它由三个相互关联的项目组成，采用红外光谱技术。 第一个项目涉及利用部署在两个地点的傅里叶变换红外光谱仪进行的测量对生物质燃烧和污染事件进行研究：位于城市中纬度的多伦多大气观测站和位于偏远北极高纬度地区努纳武特尤里卡的极地环境大气研究实验室。这些数据将用于调查对流层组成的变化和趋势，并将与全球测地系统-化学模型进行比较，以确定生物质燃烧和污染事件的起源、演变和影响的特征，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）范围内的温室气体研究，PEARL FTIR光谱仪于2010年6月加入该网络。我们将实施网络的数据分析协议，该协议由总柱CO2的极端精度要求定义。我们将与其他TCCON站点合作，利用这些数据研究碳循环，特别是区域通量和长距离传输对CO2和CH 4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实况测量。 2010年8月，火星大气痕量分子掩星光谱仪（MATMOS）被选为2016年美国宇航局/欧空局ExoMars使命。我是检索的共同领导者，检索将基于TCCON技术。第三个项目是研究火星大气的化学组成，将侧重于开发MATMOS检索算法及其应用，以绘制火星大气中痕量气体的全球分布图，从而深入了解地质和生物活动。