A037
Climate Impacts of Black Carbon Containing Particles: The Role of Mixing State
Session ID#: 157637
Session Description:
Black carbon is a strong absorber of incoming solar radiation. The mixing state of black carbon (i.e., whether it is co-mixed with other types of aerosols) strongly affects its climate impact by affecting its absorption efficiency, single-scatter albedo, and atmospheric lifetime. However, the atmospheric evolution of black carbon mixing state, what it mixes with (e.g., sulfate, organic aerosol, etc.), and the effects of that mixing on black carbon properties is not well understood.
When internally-mixed, black carbon experiences morphological changes, may absorb and scatter light more strongly, and becomes more hygroscopic than uncoated particles. Independently, these properties would be expected to have opposing effects on the radiative forcing of black carbon containing particles, but the net impact has not been well quantified. Different black carbon sources and formation conditions complicate process level understanding. Representation of black carbon in climate models is highly simplified.
This session invites presentations on advances in the understanding of the climate impacts of black carbon from measurements and models perspectives. Suggested topics include, but are not limited to: (a) modeling, laboratory, and observational studies of processes affecting black carbon mixing state; (b) how aerosol properties (e.g., refractive index, morphology) vary due to mixing state; and (c) efforts to improve the representation of black carbon’s radiative properties in climate models.
Index Terms:
0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
1029 Composition of aerosols and dust particles [GEOCHEMISTRY]
1622 Earth system modeling [GLOBAL CHANGE]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]
Primary Convener: James Edward Lee, Los Alamos National Laboratory, EES-14: Earth Systems Observations, Los Alamos, NM, United States
Conveners: Laura Fierce, Pacific Northwest National Laboratory, Richland, WA, United States, Claudio Mazzoleni, Michigan Technological University, Physics, Houghton, MI, United States and Manvendra Krishna Dubey, Los Alamos National Laboratory, Los Alamos, United States
Identifying the fraction of core-shell black carbon particles in complex mixture to constrain the absorption enhancement by coatings (1065517)
Dantong Liu, Zhejiang University, Department of Atmospheric Sciences, School of Earth Sciences, Hangzhou, China, Kang Hu, Zhejiang University, Zhejiang, China, Ping Tian, Beijing Weather Modification Center, Beijing, China and Yangzhou Wu, Zhejiang University, Hangzhou, China
Combining Multi-Wavelength AERONET, TROPOMI, and Aethalometer SSA Retrievals with a MIE Model to Quantify the Size, Mixing State, and in-Situ Lifetime of Absorbing Aerosols (1087528)
Xinying Wang, Sun Yat-Sen University, Guangzhou, China and Jason Blake Cohen, China University of Mining and Technology, School of Environment Science and Spatial Informatics, Xuzhou, China
Variation in the Black Carbon Aerosol at Indian Research Station – Bharati, Antarctica (1088784)
Satyajit Singh Saini1, Anand K. Singh2, J Jahangeer1, Shailendra Saini2, Neha Sami1 and Siraj Uddin Ahmed1, (1)JMI, A Central University, Department of Environmental Science, New Delhi, India, (2)National Centre for Polar and Ocean Research, Goa, India
Black carbon internal-mixing measurements in the UTLS differentiate sources and the radiative properties of their emissions. (1099556)
Joshua Peter Schwarz, NOAA Boulder, Chemical Sciences Division, Boulder, CO, United States, Georgia Michailoudi, NOAA Chemical Sciences Laboratory, Boulder, United States, Anne Perring, Colgate University, Hamilton, United States, Joseph M Katich, University of Colorado Cooperative Institute for Research in Environmental Sciences (CIRES) at the NOAA Chemical Sciences Laboratory (CSL), Boulder, United States, Kara Diane Lamb, University of Chicago, Chicago, IL, United States and Ru-Shan Gao, NOAA Earth System Research Laboratory, Chemical Sciences Laboratory, Boulder, United States
Aqueous Phase Processing of Black Carbon Containing Aerosols in an Urban Environment (1157154)
Ryan Nilsson Farley1, Sonya Collier2, Christopher D Cappa3, Timothy Bruce Onasch4, Leah R Williams5 and Qi Zhang1, (1)University of California Davis, Department of Environmental Toxicology, Davis, CA, United States, (2)University of California Davis, Davis, CA, United States, (3)University of California, Department of Civil and Environmental Engineering, Davis, CA, United States, (4)Aerodyne Research, Inc., Billerica, MA, United States, (5)Aerodyne Research Inc., Billerica, MA, United States
Insights into Chemical Aging of Urban Aerosols: A Case Study over Delhi during Episodic Events (1159844)
Kartika Pandey1,2, Sumit Mishra3,4, Chhemendra Sharma3,4, Bhanu Pratap Singh1,2 and Mukesh Khare5, (1)CSIR - National Physical Laboratory, New Delhi, India, (2)Academy of Scientific and Innovative Research(AcSIR), Ghaziabad, India, (3)CSIR - National Physical Laboratory, Environmental Sciences and Biomedical Metrology Division, New Delhi, India, (4)Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India, (5)Indian Institute of Technology Delhi, Department of Civil Engineering, New Delhi, India
Seasonal Variation of Black Carbon and Aerosol Optical Depth over Varanasi during 2020-21. (1160165)
Prashant Kumar Chauhan1, Akhilesh Kumar2, Dileep Kumar Gupta1, Vineet Pratap1, Abhay Kumar Singh1 and Satyam Prajapati1, (1)Department of Physics, Institute of Science, Banaras Hindu University, 221005, Varanasi, India, (2)Kashi Naresh Government Post Graduate College Gyanpur, 221304, Bhadohi, India
Impact of Improved Representation of Aerosol Mixing State on Air-Quality-Weather Interactions (1166772)
Robin Stevens1, Andrei Ryjkov2, Mahtab Majdzadeh3 and Ashu Dastoor2, (1)University of Montreal, Montreal, QC, Canada, (2)Environment and Climate Change Canada, Air Quality Research Division, Dorval, QC, Canada, (3)Environment and Climate Change Canada, Air Quality Research Division, Toronto, ON, Canada
Simulating the evolution of black carbon mixing state through cloud processing with a particle-resolved model (1173323)
Payton Beeler1, Rajan Chakrabarty1, Jingyi Chen2, Swarup China2, Joel Corbin3, Claudio Mazzoleni4, ManishKumar Shrivastava2, Rahul A Zaveri2, Alla Zelenyuk2 and Laura Fierce2, (1)Washington University in Saint Louis, Saint Louis, MO, United States, (2)Pacific Northwest National Laboratory, Richland, WA, United States, (3)National Research Council Canada, Ottawa, ON, Canada, (4)Michigan Technological University, Physics, Houghton, MI, United States
Light Absorption and Scattering by Coated Combustion Soot and Its Surrogates (1178351)
Egor Demidov, New Jersey Institute of Technology, Chemical and Materials Engineering, Edison, NJ, United States, Ali Hasani, New Jersey Institute of Technology, Chemistry and Environmental Science, Newark, NJ, United States, Ogochukwu Yvonne Enekwizu, Brookhaven National Laboratory, Upton, NY, United States, Chong Qiu, University of New Haven, West Haven, CT, United States and Alexei F Khalizov, New Jersey Institute of Technology, Chemistry and Environmental Science, Newark, United States
Restructuring of Lightly Coated Fractal Soot Particles Exposed to Subsaturated Water Vapor (1180751)
Alexei F Khalizov, New Jersey Institute of Technology, Chemistry and Environmental Science, Newark, United States, Ali Hasani, New Jersey Institute of Technology, Chemistry and Environmental Science, Newark, NJ, United States, Egor Demidov, New Jersey Institute of Technology, Chemical and Materials Engineering, Edison, NJ, United States, Ella Ivanova, New Jersey Institute of Technology, Chemical and Materials Engineering, Newark, United States and Gennady Gor, New Jersey Institute of Technology, Newark, NJ, United States
