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- Title
Tropospheric NO<sub>2</sub>, SO<sub>2</sub>, and HCHO over the East China Sea, using ship-based MAX-DOAS observations and comparison with OMI and OMPS satellite data.
- Authors
Tan, Wei; Liu, Cheng; Wang, Shanshan; Xing, Chengzhi; Su, Wenjing; Zhang, Chengxin; Xia, Congzi; Liu, Haoran; Cai, Zhaonan; Liu, Jianguo
- Abstract
In this study, ship-based multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements were performed in the East China Sea (ECS) area in June 2017. The tropospheric slant column densities (SCDs) of nitrogen dioxide (NO2), sulfur dioxide (SO2), and formaldehyde (HCHO) were retrieved from the measured spectra using the differential optical absorption spectroscopy (DOAS) technique. Using the simple geometric approach, the SCDs of different trace gases observed at a 15° elevation angle were adopted to convert into tropospheric vertical column densities (VCDs). During this campaign, the averaged VCDs of NO2, SO2, and HCHO in the marine environment over the ECS area are 6.50 x 1015, 4.28 x 1015, and 7.39 x 1015 molec cm-2
- Subjects
LIGHT absorption; FORMALDEHYDE; SULFUR dioxide; TROPOSPHERE; NITROGEN dioxide
- Publication
Atmospheric Chemistry & Physics, 2018, Vol 18, Issue 20, p15387
- ISSN
1680-7316
- Publication type
Article
- DOI
10.5194/acp-18-15387-2018