Retrieval of Brown Carbon based on the aerosol complex refractive indices in the winter of Wuhan
The impact of Brown Carbon (BrC) to aerosol light absorption has been paid more attention recently and there are a large number of studies showing that the influence of BrC on radiative forcing should not be ignored. BrC also acts as an important component of haze pollution which is occurring freque...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2017-10-01
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| Series: | Geo-spatial Information Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/10095020.2017.1394660 |
| _version_ | 1811284127571247104 |
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| author | Yuyao Zhang Yingying Ma Wei Gong |
| author_facet | Yuyao Zhang Yingying Ma Wei Gong |
| author_sort | Yuyao Zhang |
| collection | DOAJ |
| description | The impact of Brown Carbon (BrC) to aerosol light absorption has been paid more attention recently and there are a large number of studies showing that the influence of BrC on radiative forcing should not be ignored. BrC also acts as an important component of haze pollution which is occurring frequently in Wuhan, China. Therefore, it is essential to estimate their optical properties, composition, and mass concentration. Considering most haze pollution happens during the coldest time, we retrieved BrC columnar content during winter in Wuhan for the first time. Our method bases on the fact that BrC showed the strong spectral dependence on UV-light absorption. Using this method, we found that BrC makes up the small proportions of total aerosol volume (less than 10%). In the winter of 2011, we retrieved the daily-averaged columnar-integrated mass concentration of BrC on clear day is 4.353 mg/m2 while that of haze day is 12.750 mg/m2. According to the sensitivity study, we found that the results highly relied on the assumed aerosol refractive index. To reduce the uncertainty of this approach, we need to gain a better understanding of the temporal variability of the radiation absorbing components of these aerosols in the future. |
| first_indexed | 2024-04-13T02:23:57Z |
| format | Article |
| id | doaj.art-99bb4a68f5ec4183b762cf57d3c3a580 |
| institution | Directory Open Access Journal |
| issn | 1009-5020 1993-5153 |
| language | English |
| last_indexed | 2024-04-13T02:23:57Z |
| publishDate | 2017-10-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Geo-spatial Information Science |
| spelling | doaj.art-99bb4a68f5ec4183b762cf57d3c3a5802022-12-22T03:06:51ZengTaylor & Francis GroupGeo-spatial Information Science1009-50201993-51532017-10-0120431932410.1080/10095020.2017.13946601394660Retrieval of Brown Carbon based on the aerosol complex refractive indices in the winter of WuhanYuyao Zhang0Yingying Ma1Wei Gong2Wuhan UniversityWuhan UniversityWuhan UniversityThe impact of Brown Carbon (BrC) to aerosol light absorption has been paid more attention recently and there are a large number of studies showing that the influence of BrC on radiative forcing should not be ignored. BrC also acts as an important component of haze pollution which is occurring frequently in Wuhan, China. Therefore, it is essential to estimate their optical properties, composition, and mass concentration. Considering most haze pollution happens during the coldest time, we retrieved BrC columnar content during winter in Wuhan for the first time. Our method bases on the fact that BrC showed the strong spectral dependence on UV-light absorption. Using this method, we found that BrC makes up the small proportions of total aerosol volume (less than 10%). In the winter of 2011, we retrieved the daily-averaged columnar-integrated mass concentration of BrC on clear day is 4.353 mg/m2 while that of haze day is 12.750 mg/m2. According to the sensitivity study, we found that the results highly relied on the assumed aerosol refractive index. To reduce the uncertainty of this approach, we need to gain a better understanding of the temporal variability of the radiation absorbing components of these aerosols in the future.http://dx.doi.org/10.1080/10095020.2017.1394660Brown Carbon (BrC)Black Carbon (BC)aerosol complex refractive index |
| spellingShingle | Yuyao Zhang Yingying Ma Wei Gong Retrieval of Brown Carbon based on the aerosol complex refractive indices in the winter of Wuhan Geo-spatial Information Science Brown Carbon (BrC) Black Carbon (BC) aerosol complex refractive index |
| title | Retrieval of Brown Carbon based on the aerosol complex refractive indices in the winter of Wuhan |
| title_full | Retrieval of Brown Carbon based on the aerosol complex refractive indices in the winter of Wuhan |
| title_fullStr | Retrieval of Brown Carbon based on the aerosol complex refractive indices in the winter of Wuhan |
| title_full_unstemmed | Retrieval of Brown Carbon based on the aerosol complex refractive indices in the winter of Wuhan |
| title_short | Retrieval of Brown Carbon based on the aerosol complex refractive indices in the winter of Wuhan |
| title_sort | retrieval of brown carbon based on the aerosol complex refractive indices in the winter of wuhan |
| topic | Brown Carbon (BrC) Black Carbon (BC) aerosol complex refractive index |
| url | http://dx.doi.org/10.1080/10095020.2017.1394660 |
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