FIREX-AQ Analysis and Supplementary Data

FIREXAQ_Analysis_Data are supplementary analysis and ancillary data collected during FIREX-AQ. This product includes plume ratios, and supplementary datasets regarding the wildfires sampled during the campaign. Data collection for this product is complete.

Completed during summer 2019, FIREX-AQ utilized a combination of instrumented airplanes, satellites, and ground-based instrumentation. Detailed fire plume sampling was carried out by the NASA DC-8 aircraft, which had a comprehensive instrument payload capable of measuring over 200 trace gas species, as well as aerosol microphysical, optical, and chemical properties. The DC-8 aircraft completed 23 science flights, including 15 flights from Boise, Idaho and 8 flights from Salina, Kansas. NASA’s ER-2 completed 11 flights, partially in support of the FIREX-AQ effort. The ER-2 payload was made up of 8 satellite analog instruments and provided critical fire information, including fire temperature, fire plume heights, and vegetation/soil albedo information. NOAA provided the NOAA-CHEM Twin Otter and the NOAA-MET Twin Otter aircraft to measure chemical processing in the lofted plumes of Western wildfires. The NOAA-CHEM Twin Otter focused on nighttime plume chemistry, from which data is archived at the NASA Atmospheric Science Data Center (ASDC). The NOAA-MET Twin Otter collected measurements of air movements at fire boundaries with the goal of understanding the local weather impacts of fires and the movement patterns of fires. NOAA-MET Twin Otter data will be archived at the ASDC in the future. Additionally, a ground-based station in McCall, Idaho and several mobile laboratories provided in-situ measurements of aerosol microphysical and optical properties, aerosol chemical compositions, and trace gas species.

The Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) campaign was a NOAA/NASA interagency intensive study of North American fires to gain an understanding on the integrated impact of the fire emissions on the tropospheric chemistry and composition and to assess the satellite’s capability for detecting fires and estimating fire emissions. The overarching goal of FIREX-AQ was to provide measurements of trace gas and aerosol emissions for wildfires and prescribed fires in great detail, relate them to fuel and fire conditions at the point of emission, characterize the conditions relating to plume rise, and follow plumes downwind to understand chemical transformation and air quality impacts. Data collection is complete.

FIREX-AQ分析数据集为FIREX-AQ实验期间采集的补充分析与配套辅助数据。本产品涵盖火羽流比率相关数据，以及实验期间采样野火的配套补充数据集。本产品的数据采集工作已全部完成。

FIREX-AQ实验于2019年夏季开展，综合运用了搭载观测仪器的航空器、卫星与地面观测设备。美国国家航空航天局（National Aeronautics and Space Administration, NASA）的DC-8航空器承担了详细的火羽流采样任务，其搭载了全面的仪器载荷，可测量超过200种痕量气体物种，以及气溶胶的微物理、光学与化学特性。DC-8航空器共计完成23架次科学飞行，其中15架次从爱达荷州博伊西起飞，8架次从堪萨斯州萨利纳起飞。美国国家航空航天局的ER-2航空器完成了11架次飞行，部分任务用于支持FIREX-AQ实验。ER-2的载荷由8台卫星模拟仪器组成，可提供关键的火灾相关信息，包括火场温度、火羽流高度以及植被/土壤反照率数据。

美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）提供了NOAA-CHEM双水獭型飞机与NOAA-MET双水獭型飞机，用于测量北美西部野火抬升羽流中的化学过程。其中NOAA-CHEM双水獭型飞机专注于夜间羽流化学观测，其数据已存档于NASA大气科学数据中心（NASA Atmospheric Science Data Center, ASDC）。NOAA-MET双水獭型飞机则采集火场边界的大气运动数据，旨在理解火灾对局地天气的影响以及火灾蔓延模式。NOAA-MET双水獭型飞机的相关数据未来将存档于ASDC。

此外，爱达荷州麦考尔市的一座地面观测站与多台移动实验室，同步开展了气溶胶微物理与光学特性、气溶胶化学成分以及痕量气体物种的原位测量。

火灾对区域至全球环境与空气质量的影响（FIREX-AQ, Fire Influence on Regional to Global Environments and Air Quality）实验是美国国家海洋和大气管理局与美国国家航空航天局跨部门开展的北美野火密集观测研究，旨在深入理解火灾排放对对流层化学与成分的综合影响，并评估卫星探测火灾与估算火灾排放量的能力。FIREX-AQ实验的总体目标是：详尽测量野火与计划烧除的痕量气体和气溶胶排放数据，将其与排放点的燃料与火灾条件相关联，表征羽流抬升相关的环境条件，并追踪下风方向的羽流以理解化学转化过程与空气质量影响。本产品的数据采集工作已全部完成。