Measurement report: Six-year DOAS observations reveal post-2020 rebound of ship SO₂ emissions in Shanghai Port despite low-sulfur fuel regulations

Data used in the manuscript submitted to Atmospheric Chemistry and Physics with a title of " Measurement report: Six-year DOAS observations reveal post-2020 rebound of ship SO₂ emissions in Shanghai Port despite low-sulfur fuel regulations"本数据集为提交至《Atmospheric Chemistry and Physics》（大气化学与物理）的手稿所使用的数据，该手稿的标题为：「观测报告：六年差分光学吸收光谱（Differential Optical Absorption Spectroscopy, DOAS）观测揭示，尽管实施了低硫燃料管制法规，上海港船舶二氧化硫（SO₂）排放量在2020年后出现反弹」