Study on the method of reconstructing the vertical plane distribution of SO2 using IDOAS
文献类型：期刊论文
| 作者 | Zhong, Mingyu2; Wei, Yumeng2; Xi, Liang1; Chang, Zhen1 ; Zhou, Haijin1; Si, Fuqi1; Dou, Ke1
|
| 刊名 | AIR QUALITY ATMOSPHERE AND HEALTH
 |
| 出版日期 | 2024-08-17 |
| 关键词 | Atmosphere IDOAS Computed tomography SO2 |
| ISSN号 | 1873-9318 |
| DOI | 10.1007/s11869-024-01628-w |
| 通讯作者 | Zhong, Mingyu(myzhong@aust.edu.cn) |
| 英文摘要 | This paper presents a method that combines Imaging Differential Optical Absorption Spectroscopy (IDOAS) with Computed Tomography (CT) technique to reconstruct the spatial distribution of SO2 in the vertical plane. A cubic quartz glass container with a side length of 450 mm was used, and SO2 gas was injected into the container from a steel cylinder. Two IDOASs were used to collect spectral data on the vertical plane. The Differential Optical Absorption Spectroscopy (DOAS) algorithm was employed to retrieve the slant column densities (SCDs). The gas distribution in the gas container was estimated with the help of linear fitting. It was found that the experimental SCDs were in good agreement with the theoretical analysis. Based on the sparse gradient of the gas distribution in the gas container and the non-negative of the gas concentration, a CT algorithm called ABOCS-TVM with total variational (TV) regularization was introduced. Numerical simulations show that if the gas in the container is uniform, the algorithm works well even under the influence of perturbations, and the artifacts in the reconstructed images are suppressed. The experiment showed that the algorithm is able to accurately locate the SO2 gas and provide an approximate distribution. In particular, the reconstructed peak molecular number density is approximately 11% higher than the theoretical value. Research has demonstrated the feasibility of utilizing IDOAS-based CT reconstruction technology to reconstruct the spatial distribution of SO2 in a vertical plane. This technology allows precise localization of the spatial position of SO2 and quantitative analysis of its distribution. |
| WOS关键词 | TOMOGRAPHIC RECONSTRUCTION ; DOAS TOMOGRAPHY ; PLUME ; ALGORITHMS ; SPECTROMETER |
| 资助项目 | Natural Science Research Project of Anhui Educational Committee |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001292885200002 |
| 出版者 | SPRINGER |
| 资助机构 | Natural Science Research Project of Anhui Educational Committee |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/136021]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhong, Mingyu |
| 作者单位 | 1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, 350 Shushan Lake Rd, Hefei 230031, Anhui, Peoples R China 2.Anhui Univ Sci & Technol, Coll Elect & Informat Engn, 168 Taifeng St, Huainan 232001, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong, Mingyu,Wei, Yumeng,Xi, Liang,et al. Study on the method of reconstructing the vertical plane distribution of SO2 using IDOAS[J]. AIR QUALITY ATMOSPHERE AND HEALTH,2024. |
| APA | Zhong, Mingyu.,Wei, Yumeng.,Xi, Liang.,Chang, Zhen.,Zhou, Haijin.,...&Dou, Ke.(2024).Study on the method of reconstructing the vertical plane distribution of SO2 using IDOAS.AIR QUALITY ATMOSPHERE AND HEALTH. |
| MLA | Zhong, Mingyu,et al."Study on the method of reconstructing the vertical plane distribution of SO2 using IDOAS".AIR QUALITY ATMOSPHERE AND HEALTH (2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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