The version 4.0 dataset from the Atmospheric Chemistry Experiment – Fourier Transform Spectrometer (ACE-FTS) on SCISAT, released in March of 2019, has sulfur dioxide (SO₂) volume mixing ratio (VMR) profiles as a routine data product. From this dataset, global SO₂ distributions between the altitudes of 10.5 km and 23.5 km are analyzed. The global distribution of all SO₂ VMR data by altitude is broken down into 30° and 5° latitude zones. Seasonality of the global SO₂ distribution is explored. Volcanic SO₂ plumes are isolated in the dataset and compared with extinction data from the ACE-FTS Imager.

中文翻译：

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来自大气化学实验（ACE）卫星的二氧化硫

2019年3月发布的SCISAT大气化学实验-傅立叶变换光谱仪（ACE-FTS）的4.0版数据集具有二氧化硫（SO ₂）体积混合比（VMR）曲线作为常规数据产品。从该数据集中，分析了10.5 km和23.5 km高度之间的全球SO ₂分布。所有SO ₂ VMR数据的全球分布按海拔高度划分为30°和5°纬度区域。探索了全球SO ₂分布的季节性。在数据集中隔离了火山SO ₂羽流，并与ACE-FTS成像仪的消光数据进行了比较。