ATom: Sulfur Dioxide by Laser Induced Fluorescence (LIF-SO2) for ATom-4 Campaign

This dataset provides concentrations of sulfur dioxide (SO2) measured by the Laser Induced Fluorescence Instrumentation for Sulfur Dioxide (SO2-LIF) on the ATom-4 campaign in April and May 2018. The LIF-SO2 instrument detects SO2 at the single-part per trillion level using red-shifted laser-induced fluorescence. Measurements are reported at 1-second intervals along the flight paths. Sources of SO2 atmosphere from natural sources include volcanic eruptions and wildfires; however, most anthropogenic sources, such as fossil fuel combustion, arise. SO2 influences some negative health and environmental impacts and is an important precursor of aerosols in the nucleation of new particles globally.本数据集提供了2018年4月至5月ATom-4航次期间，由二氧化硫激光诱导荧光仪器（SO2-LIF）测量得到的二氧化硫（SO2）浓度数据。SO2-LIF仪器采用红移激光诱导荧光技术，可检测万亿分之一量级的SO2。测量数据沿飞行路径以1秒为间隔记录。大气中SO2的自然来源包括火山喷发和野火；然而，其主要人为来源为化石燃料燃烧等。SO2会对健康和环境产生负面影响，同时也是全球新粒子成核过程中气溶胶的重要前体物。