Acta Photonica Sinica, Volume. 50, Issue 1, 210(2021)
Observation of HCHO before and after Epidemic in Huaibei Area Based on MAX-DOAS
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Fig. 1. Air monitoring station instrument of Huaibei Normal University and MAX-DOAS measurement principle diagram
Fig. 2. Retrieval results under elevation of 4°、8°、15° on October 20th, 2019
Fig. 3. Fitting results of 8° spectrum measured at 12:26 on October 20th, 2019
Fig. 4. Averaged monthly values variation of HCHO and NO2. Error bars denote standard deviations
Fig. 5. Daily changes and weekly changes measured by MAX-DOAS in different episodes. Error bars denote standard deviations
Fig. 6. Monthly mean values profile of HCHO from October 2019 to May 2020
Fig. 7. Backward trajectory analysis of wind field on January 12-14, 2020 and January 18-21, 2020
Fig. 8. Comparison of MAX-DOAS data and OMI data and the correlation between them
Table 1. Retrieval settings used for HCHO
View tableView in ArticleTable 1. Retrieval settings used for HCHO
Parameter Data source NO2 Vandaele et al. 298K O4 ThalmanVolkamer et al. 293K O3 Serdyuchenko et al. 223K HCHO Meller et al. 297K Polynomial degree 5
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Hexiang QI, Yingying GUO, Fusheng MOU, Suwen LI. Observation of HCHO before and after Epidemic in Huaibei Area Based on MAX-DOAS[J]. Acta Photonica Sinica, 2021, 50(1): 210
Paper Information
Category: Atmospheric and Oceanic Optics
Received: --
Accepted: --
Published Online: Mar. 12, 2021
The Author Email: LI Suwen (swli@chnu.edu.cn)
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