RAPID: Testing the Solar Occultation Flux Instrument on the Wyoming King Air

该项目包括2017年夏末在怀俄明州国王航空飞机上对科罗拉多大学机载太阳掩星通量（SOF）仪器进行修改和测试。该仪器先前在NSF/NCAR C130上的部署表明，它有能力量化氨、氮氧化物和其他微量气体的排放通量。该仪器在研究野火排放方面特别有用，计划于2018年夏天在美国西部进行更大规模的实地活动。在许多地区，野火导致能见度降低和空气质量恶化。SOF可以通过测量整个羽流柱剖面来量化来自区域源（如野火源）的痕量气体排放通量。结合风向/风速的测量，应用质量平衡法计算了发射通量。这项RAPID提案的紧迫性在于需要对仪器进行修改，并在2018年夏季支持其在主要现场活动中使用之前，测试和证明在野火环境中部署仪器的可行性。微量气体柱的软测量与NSF/NCAR C130飞机计划在2018年进行的详细采样高度互补。

This project includes the modification and testing of the University of Colorado Airborne Solar Occultation Flux (SOF) instrument on the Wyoming King Air aircraft during the late summer of 2017. Prior deployment of this instrument on the NSF/NCAR C130 demonstrated its capability to quantify emission fluxes of ammonia, nitrogen oxides and other trace gases. The instrument will be especially useful in the study of wildfire emissions planned as part of a larger field campaign in the summer of 2018 in the Western US. Wildfires contribute to reduced visibility and the degradation of air quality in many regions.The SOF can quantify trace gas emission fluxes from an area source, such as a wildfire source, by measuring the entire plume column profile. In combination with measurements of wind direction/speed, the emission flux is calculated by applying the mass balance method. The urgency of this RAPID proposal consists in the need for instrument modifications and for testing and demonstrating the feasibility of deploying the instrument in a wildfire environment prior to supporting its use in a major field campaign scheduled for next summer in 2018. SOF measurements of trace gas columns are highly complementary to the detailed sampling that is planned from the NSF/NCAR C130 aircraft in 2018.