Articles | Volume 20, issue 16
https://doi.org/10.5194/acp-20-9701-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-9701-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
19 Aug 2020
Research article |
| 19 Aug 2020
| 19 Aug 2020
The absorption Ångstrom exponent of black carbon with brown coatings: effects of aerosol microphysics and parameterization
Xiaolin Zhang
CORRESPONDING AUTHOR
Key Laboratory of Meteorological Disaster, Ministry of Education (KLME)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD)/Joint International Research Laboratory of Climate and Environment Change (ILCEC)/Earth System Modeling Center (ESMC)/Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science & Technology, Nanjing, 210044, China
School of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing, 210044, China
National Satellite Meteorological Center, China Meteorological Administration, Beijing, 100081, China
Mao Mao
CORRESPONDING AUTHOR
Key Laboratory of Meteorological Disaster, Ministry of Education (KLME)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD)/Joint International Research Laboratory of Climate and Environment Change (ILCEC)/Earth System Modeling Center (ESMC)/Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science & Technology, Nanjing, 210044, China
School of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing, 210044, China
Key Laboratory of Meteorological Disaster, Ministry of Education (KLME)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD)/Joint International Research Laboratory of Climate and Environment Change (ILCEC)/Earth System Modeling Center (ESMC)/Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science & Technology, Nanjing, 210044, China
School of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing, 210044, China
Shihao Tang
National Satellite Meteorological Center, China Meteorological Administration, Beijing, 100081, China
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- Assessment of Air Pollution Levels during Sugarcane Stubble Burning Event in La Feria, South Texas, USA S. Pinakana et al. 10.3390/pollutants3020015
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- Wintertime spatial patterns of particulate matter in Fairbanks, AK during ALPACA 2022 E. Robinson et al. 10.1039/D2EA00140C
- Lensing Effect of Black Carbon With Brown Coatings: Dominant Microphysics and Parameterization X. Zhang et al. 10.1029/2020JD033549
- Unseen rail damage diagnosis framework using mechanism-embedded generative network Z. Guo et al. 10.1088/1361-6501/adb2b5
- Vertical profiling of black carbon and ozone using a multicopter unmanned aerial vehicle (UAV) in urban Shenzhen of South China C. Wu et al. 10.1016/j.scitotenv.2021.149689
- The Effects of Local Pollution and Transport Dust on Aerosol Properties in Typical Arid Regions of Central Asia during DAO-K Measurement Y. Wei et al. 10.3390/atmos13050729
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- The Angstrom exponents of black carbon aerosols with non-absorptive coating: A numerical investigation X. Zhang et al. 10.1016/j.jqsrt.2020.107362
- Vertical structure of biomass burning aerosol transported over the southeast Atlantic Ocean H. Harshvardhan et al. 10.5194/acp-22-9859-2022
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- Microphysical properties of atmospheric soot and organic particles: measurements, modeling, and impacts W. Li et al. 10.1038/s41612-024-00610-8
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- Seasonal variations of mass absorption efficiency of elemental carbon in PM2.5 in urban Guangzhou of South China C. Pei et al. 10.1016/j.jes.2022.04.019
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- Liquid-liquid phase separation reduces radiative absorption by aged black carbon aerosols J. Zhang et al. 10.1038/s43247-022-00462-1
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- The variability of mass concentrations and source apportionment analysis of equivalent black carbon across urban Europe M. Savadkoohi et al. 10.1016/j.envint.2023.108081
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- Significance of Absorbing Fraction of Coating on Absorption Enhancement of Partially Coated Black Carbon Aerosols X. Zhang et al. 10.3390/atmos12111422
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- Rapid transformation of ambient absorbing aerosols from West African biomass burning H. Wu et al. 10.5194/acp-21-9417-2021
Latest update: 02 Apr 2025
Short summary
The understanding of the absorption Ångstrom exponent (AAE) of aged black carbon (BC) particles affected by their microphysics is numerically evaluated. With key sensitive microphysical parameters, a simple parameterization of the AAE of coated BC with a size distribution is proposed. It is found that BC coated by thin brown carbon with more large particles shows an AAE smaller than pure BC particles. Our findings improve the understanding and application of the AAE of BC with brown coatings.
The understanding of the absorption Ångstrom exponent (AAE) of aged black carbon (BC) particles...
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