Distributions and Direct Radiative Effects of Different Aerosol Types in North China
Different aerosol types exhibit distinct radiative effects in different regions, attributed to their unique optical characteristics and regional distributions. This study focuses on North China, which is impacted by both natural and anthropogenic aerosols with high concentrations and a variety of ae...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/15/23/5511 |
| _version_ | 1827592081073242112 |
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| author | Nan Peng Jing Su Xinyi Han Xingzhu Deng Weiqi Lan Jinyan Wang |
| author_facet | Nan Peng Jing Su Xinyi Han Xingzhu Deng Weiqi Lan Jinyan Wang |
| author_sort | Nan Peng |
| collection | DOAJ |
| description | Different aerosol types exhibit distinct radiative effects in different regions, attributed to their unique optical characteristics and regional distributions. This study focuses on North China, which is impacted by both natural and anthropogenic aerosols with high concentrations and a variety of aerosol types. While many studies on aerosol direct radiative effects have been conducted in this region, the majority have focused on a specific type of aerosol or overall aerosol, leaving limited research on the direct radiative effects and contributions of different aerosol types. In this study, we use CALIPSO satellite data from 2011 to 2020 to investigate concentrations and distributions of different aerosol types. The results reveal that dust, polluted dust, polluted continental/smoke, and elevated smoke are the dominant aerosol types in North China. Based on the radiative closure experiment, we systematically calculate the radiative effects of different aerosol types and their corresponding contributions to the energy budget by combining satellite data with the Fu–Liou radiative transfer model. The annual average net aerosol direct radiative effect (ADRE) of North China is −6.1 and −13.43 W m<sup>−2</sup> at the TOA and surface, respectively, causing a net warming effect of 7.33 W m<sup>−2</sup> in the atmosphere. For each main aerosol type, dust contributes 93% to the shortwave ADRE in the western dust source region, while polluted dust mainly contributes 31% and 45% of the total ADRE, in Northwest China and North China Plain, respectively. Anthropogenic pollutant aerosols account for 58% of the total ADRE in Northeast China. This study holds great significance in elucidating the dominant aerosol types and their concentrations in North China, comprehending the impacts of different aerosol types on the local energy balance. |
| first_indexed | 2024-03-09T01:43:42Z |
| format | Article |
| id | doaj.art-188d0cc1c41b491583ea0383eb1ab92c |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T01:43:42Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-188d0cc1c41b491583ea0383eb1ab92c2023-12-08T15:24:51ZengMDPI AGRemote Sensing2072-42922023-11-011523551110.3390/rs15235511Distributions and Direct Radiative Effects of Different Aerosol Types in North ChinaNan Peng0Jing Su1Xinyi Han2Xingzhu Deng3Weiqi Lan4Jinyan Wang5College of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, ChinaCollege of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, ChinaCollege of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, ChinaCollege of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, ChinaCollege of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, ChinaCollege of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, ChinaDifferent aerosol types exhibit distinct radiative effects in different regions, attributed to their unique optical characteristics and regional distributions. This study focuses on North China, which is impacted by both natural and anthropogenic aerosols with high concentrations and a variety of aerosol types. While many studies on aerosol direct radiative effects have been conducted in this region, the majority have focused on a specific type of aerosol or overall aerosol, leaving limited research on the direct radiative effects and contributions of different aerosol types. In this study, we use CALIPSO satellite data from 2011 to 2020 to investigate concentrations and distributions of different aerosol types. The results reveal that dust, polluted dust, polluted continental/smoke, and elevated smoke are the dominant aerosol types in North China. Based on the radiative closure experiment, we systematically calculate the radiative effects of different aerosol types and their corresponding contributions to the energy budget by combining satellite data with the Fu–Liou radiative transfer model. The annual average net aerosol direct radiative effect (ADRE) of North China is −6.1 and −13.43 W m<sup>−2</sup> at the TOA and surface, respectively, causing a net warming effect of 7.33 W m<sup>−2</sup> in the atmosphere. For each main aerosol type, dust contributes 93% to the shortwave ADRE in the western dust source region, while polluted dust mainly contributes 31% and 45% of the total ADRE, in Northwest China and North China Plain, respectively. Anthropogenic pollutant aerosols account for 58% of the total ADRE in Northeast China. This study holds great significance in elucidating the dominant aerosol types and their concentrations in North China, comprehending the impacts of different aerosol types on the local energy balance.https://www.mdpi.com/2072-4292/15/23/5511aerosol typeaerosol optical depthaerosol radiative effectNorth Chinaradiative closure experiment |
| spellingShingle | Nan Peng Jing Su Xinyi Han Xingzhu Deng Weiqi Lan Jinyan Wang Distributions and Direct Radiative Effects of Different Aerosol Types in North China Remote Sensing aerosol type aerosol optical depth aerosol radiative effect North China radiative closure experiment |
| title | Distributions and Direct Radiative Effects of Different Aerosol Types in North China |
| title_full | Distributions and Direct Radiative Effects of Different Aerosol Types in North China |
| title_fullStr | Distributions and Direct Radiative Effects of Different Aerosol Types in North China |
| title_full_unstemmed | Distributions and Direct Radiative Effects of Different Aerosol Types in North China |
| title_short | Distributions and Direct Radiative Effects of Different Aerosol Types in North China |
| title_sort | distributions and direct radiative effects of different aerosol types in north china |
| topic | aerosol type aerosol optical depth aerosol radiative effect North China radiative closure experiment |
| url | https://www.mdpi.com/2072-4292/15/23/5511 |
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