Particle size amplification of black carbon by scattering measurement due to morphology diversity
Black carbon (BC) is an important aerosol species due to its strong heating of the atmosphere accompanied by cooling of the Earth’s surface, but its radiative forcing is poorly constrained by different regional size distributions due to uncertain reproductions of a morphologically simplified model....
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2023-01-01
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| Series: | Environmental Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1748-9326/acaede |
| _version_ | 1827869694691901440 |
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| author | Yu Wu Tianhai Cheng Lijuan Zheng Yonggen Zhang Lili Zhang |
| author_facet | Yu Wu Tianhai Cheng Lijuan Zheng Yonggen Zhang Lili Zhang |
| author_sort | Yu Wu |
| collection | DOAJ |
| description | Black carbon (BC) is an important aerosol species due to its strong heating of the atmosphere accompanied by cooling of the Earth’s surface, but its radiative forcing is poorly constrained by different regional size distributions due to uncertain reproductions of a morphologically simplified model. Here, we quantify the BC morphological effect on measuring the particle size using an aggregate model. We show that the size distributions of loose BC particles could account for up to 45% underestimation by morphological simplification, leading to up to 25% differences, by relying on a simplified model to estimate radiative forcing. We find that the BC particle size is remarkably amplified for looser and larger BC aggregates by angular scattering observations. We suggest that the BC morphological diversity can be neglected in forward scattering angles (<30°), which is a useful supplement to reduce the uncertainty of radiative forcing assessment. |
| first_indexed | 2024-03-12T15:47:45Z |
| format | Article |
| id | doaj.art-3df9c5dcb6c6450f96da4f084d20949a |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-12T15:47:45Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-3df9c5dcb6c6450f96da4f084d20949a2023-08-09T15:20:28ZengIOP PublishingEnvironmental Research Letters1748-93262023-01-0118202401110.1088/1748-9326/acaedeParticle size amplification of black carbon by scattering measurement due to morphology diversityYu Wu0https://orcid.org/0000-0002-0327-8935Tianhai Cheng1Lijuan Zheng2Yonggen Zhang3Lili Zhang4Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University , No.92 Weijin Road, Nankai District, Tianjin 300072, People’s Republic of ChinaAerospace Information Research Institute, Chinese Academy of Sciences , No.9 Dengzhuangnan Road, Haidian District, Beijing 100094, People’s Republic of ChinaLand Satellite Remote Sensing Application Center, Ministry of Natural Resources of China , No.1 Baishengcun, Haidian District, Beijing 100048, People’s Republic of ChinaInstitute of Surface-Earth System Science, School of Earth System Science, Tianjin University , No.92 Weijin Road, Nankai District, Tianjin 300072, People’s Republic of ChinaAerospace Information Research Institute, Chinese Academy of Sciences , No.9 Dengzhuangnan Road, Haidian District, Beijing 100094, People’s Republic of ChinaBlack carbon (BC) is an important aerosol species due to its strong heating of the atmosphere accompanied by cooling of the Earth’s surface, but its radiative forcing is poorly constrained by different regional size distributions due to uncertain reproductions of a morphologically simplified model. Here, we quantify the BC morphological effect on measuring the particle size using an aggregate model. We show that the size distributions of loose BC particles could account for up to 45% underestimation by morphological simplification, leading to up to 25% differences, by relying on a simplified model to estimate radiative forcing. We find that the BC particle size is remarkably amplified for looser and larger BC aggregates by angular scattering observations. We suggest that the BC morphological diversity can be neglected in forward scattering angles (<30°), which is a useful supplement to reduce the uncertainty of radiative forcing assessment.https://doi.org/10.1088/1748-9326/acaedemorphologyblack carbonsize distributionparticle scatteringradiative forcing |
| spellingShingle | Yu Wu Tianhai Cheng Lijuan Zheng Yonggen Zhang Lili Zhang Particle size amplification of black carbon by scattering measurement due to morphology diversity Environmental Research Letters morphology black carbon size distribution particle scattering radiative forcing |
| title | Particle size amplification of black carbon by scattering measurement due to morphology diversity |
| title_full | Particle size amplification of black carbon by scattering measurement due to morphology diversity |
| title_fullStr | Particle size amplification of black carbon by scattering measurement due to morphology diversity |
| title_full_unstemmed | Particle size amplification of black carbon by scattering measurement due to morphology diversity |
| title_short | Particle size amplification of black carbon by scattering measurement due to morphology diversity |
| title_sort | particle size amplification of black carbon by scattering measurement due to morphology diversity |
| topic | morphology black carbon size distribution particle scattering radiative forcing |
| url | https://doi.org/10.1088/1748-9326/acaede |
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