A087
Light-Absorbing Carbon Aerosol from Observations and Models

Session ID#: 77727

Session Description:
Following carbon dioxide, light-absorbing carbon aerosol (LAC) such as black or brown carbon, is the second climate warming agent in the earth system. LAC impacts are manifest in the Earth’s atmosphere, land, and hydrologic systems, as either airborne or snow-deposited LAC can easily absorb solar energy and alter radiative budget. However, LAC radiative effect in most climate models varies by a factor of two. The uncertainty mainly arises from the transformation of LAC in the atmosphere during its lifecycle and the corresponding treatment in models. Making scientific progress on LAC emission regulation is critical for sound policy making to battle against the global warming. This session invites papers on: source characterization of LAC emissions, transformations, and sinks; measurements on LAC chemical, microphysical, and optical properties; numerical simulations of LAC and its properties in models at various scales; assessment of LAC radiative forcing and climate impacts.
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0368 Troposphere: constituent transport and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3337 Global climate models [ATMOSPHERIC PROCESSES]
3359 Radiative processes [ATMOSPHERIC PROCESSES]

Primary Convener:  Chao Liu, Nanjing University of Information Science & Technology, Nanjing, China
Conveners:  Yuan Wang, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Rajan Chakrabarty, Washington University in Saint Louis, Saint Louis, MO, United States and Susanne Bauer, NASA Goddard Institute for Space Studies, New York, United States
Primary Liaison:  Yuan Wang, NASA Jet Propulsion Laboratory, Pasadena, CA, United States
 
Observed Interactions between Black Carbon and Hydrometeor during Wet Scavenging in Mixed-Phase Clouds (493869)
Dantong Liu, Zhejiang University, Department of Atmospheric Sciences, School of Earth Sciences, Hangzhou, China
 
Interferometric measurements of the aerosol light absorption coefficient - characterization of a new instrument (494799)
Grisa Mocnik1, Bradley Visser2, Ernest Weingartner2, Peter Steigmeier2 and Luka Drinovec1, (1)Jozef Stefan Institute, Ljubljana, Slovenia, (2)University of Applied Sciences and Arts Northwestern Switzerland, School of Engineering, Windisch, Switzerland
 
Impact of black carbon on boundary layer and its effect on surface ozone (497012)
Bin Zhu, NUIST Nanjing University of Information Science and Technology, Nanjing, China, Jinhui Gao Dr., South University of Science and Technology of China, Shenzheng, China and Tong Zhu, NOAA/NESDIS/STAR, Laurel, MD, United States
 
Simultaneous observations by sky radiometer and MAX-DOAS for characterization of biomass burning plumes in central Thailand in January-April 2016 (498694)
Hitoshi Irie1, Hossain Mohammed Syedul Hoque1, Alessandro Damiani1, Hiroshi Okamoto1, Al Mashroor Fatmi1, Pradeep Khatri2, Tamio Takamura1 and Thanawat Jarupongsakul3, (1)Center for Environmental Remote Sensing, Chiba University, Chiba, Japan, (2)Tohoku University, Sendai, Japan, (3)Department of Geology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
 
Effective densities of soot particles and their relationships with the mixing state at an urban site of the Beijing mega-city in the winter of 2018 (500968)
Hang LIU1, Xiaole Pan2 and Zifa Wang2, (1)Beijing, Beijing, China, (2)Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
 
Optical properties and radiative forcing of mixed black carbon aerosols (501762)
Chao Liu, Shiwen Teng, Xue Feng and Qiao Lu, Nanjing University of Information Science & Technology, Nanjing, China
 
Impact of Topography on Black Carbon Transport to the Southern Tibetan Plateau during Pre-monsoon Season and Its Climatic Implication (505279)
Chun Zhao1, Meixin Zhang2, Zhiyuan Cong3, Du Qiuyan1, Mingyue Xu2, Rui Li1, Ming Chen4 and Jimy Dudhia5, (1)University of Science and Technology of China, Hefei, China, (2)USTC University of Science and Technology of China, Hefei, China, (3)Institute of Tibetan Plateau R, Beijing, China, (4)National Center for Atmospheric Research, NCAR, Boulder, CO, United States, (5)National Center for Atmospheric Research, Boulder, CO, United States
 
Vertical characteristics of black carbon physical properties over Beijing region in warm and cold seasons (506153)
Delong Zhao, Beijing Weather Modification Office, Beijing, China
 
Measurement of Ambient Black Carbon in Athens, GA, USA Using a MicroAeth® and a Multi-wavelength Photoacoustic Spectrometer (511709)
Jeonghoon Lee1, Michael A. Pogash2 and Geoffrey D. Smith2, (1)KOREATECH, School of Mechanical Engineering, Cheonan, South Korea, (2)University of Georgia, Department of Chemistry, Athens, United States
 
Investigating the Dependence of Light Absorption Properties of Fresh Organic Aerosol from Wood Combustion on Combustion Conditions (511780)
Qixing Zhang, Ranran Zhao and Yongming Zhang, University of Science and Technology of China, Hefei, China
 
Analysis of factors causing variations in the Absorption Ångström Exponent of aerosols in Japan using sky-radiometers (514531)
Kodai Yamaguchi, Chiba University, Chiba, Japan, Hitoshi Irie, Center for Environmental Remote Sensing, Chiba University, Chiba, Japan, Toshihiko Takemura, Kyushu University, Research Institute for Applied Mechanics, Fukuoka, Japan, Pradeep Khatri, Tohoku University, Sendai, Japan and Hirokazu Yamamoto, Geological Survey of Japan, AIST, Tsukuba, Japan
 
Effect of soot morphology on the radiation intensity in a plane-parallel medium (515235)
Yujia Sun, Hefei University of Technology, Hefei, China and Chao Liu, Nanjing University of Information Science & Technology, Nanjing, China
 
Global model simulation of remote tropospheric brown carbon constrained by Atmospheric Tomography Mission (ATom) Observations (519262)
Aoxing Zhang1, Yuhang Wang2, Linghan Zeng3 and Rodney J Weber2, (1)Georgia Institute of Technology, Atlanta, GA, United States, (2)Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, GA, United States, (3)Georgia Institute of Technology, Atlanta, United States
 
Long Term Characterization of Brown Carbon in Amazonia using AERONET and in situ Measurements (521004)
Fernando Morais, University of Sao Paulo, São Paulo, Brazil, Eduardo Landulfo, IPEN/CNEN, Sao Paulo, SP, Brazil, Paulo Artaxo, University of Sao Paulo, Sao Paulo, Brazil, Marco Aurélio Franco, University of Sao Paulo, Institute of Physics, São Paulo, Brazil, Joel Schafer, Science Systems and Applications, Inc., Greenbelt, MD, United States and Brent Holben, NASA Goddard Space Flight Center, Greenbelt, MD, United States
 
Modified Parameterisation of Black Carbon Aging in a Climate Model (530673)
Sudipta Ghosh, Indian Institute of Technology Delhi, New Delhi, India, Nicole Riemer, University of Illinois at Urbana-Champaign, Department of Atmospheric Sciences, Urbana, IL, United States, Graziano Giuliani, Abdus Salam International Center for Theoretical Physics, Earth Physics Section, Trieste, Italy and Sagnik Dey, IIT Delhi, New Delhi, India
 
Attribution of black and brown carbon aerosols to solar light absorption at surface and column atmosphere in Kathmandu, Nepal (531449)
Chaeyoon Cho1, Sang-Woo Kim2, Maheswar Rupakheti3 and Do-Hyeon Park2, (1)Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South), (2)Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea, (3)Institute for Advanced Sustainability Studies (IASS), Potsdam, Germany
 
Modeling of Carbonyl/Ammonium Sulfate Aqueous Brown Carbon Chemistry via UV/Vis Spectral Deconvolution (549764)
Joseph Woo and Shiqing Ma, Lafayette College, Chemical and Biomolecular Engineering, Easton, PA, United States
 
Improving our Understanding of Light Absorbing Aerosols from Biomass Burning (555282)
Arthur J Sedlacek III, Brookhaven National Lab, Upton, NY, United States, Ernie R Lewis, Brookhaven National Laboratory, Upton, NY, United States, Timothy Bruce Onasch, Aerodyne Research, Inc., Billerica, MA, United States and Lawrence I Kleinman, Atmosph Sci Div, Upton, NY, United States
 
Seasonal and diurnal variability of black carbon concentration in Beijing and its relationship with meteorological factors (570863)
Liang Chang, Jing Li and Yiqi Chu, Peking University, Department of Atmospheric and Oceanic Sciences, Beijing, China
 
Formation and impacts of brown carbon aerosols (574914)
Renyi Zhang, Texas A&M University College Station, College Station, TX, United States
 
A Comparison of Brown Carbon Aerosol Optical Properties from Recent Laboratory and Field Measurements (584890)
Benjamin Sumlin, Washington University in St Louis, St. Louis, MO, United States, Nishit Shetty, Washington University in St Louis, Energy, Environmental, and Chemical Engineering, St. Louis, United States and Rajan Chakrabarty, Washington University in Saint Louis, Saint Louis, MO, United States
 
CONCENTRATIONS AND FLUXES OF BLACK CARBON IN BEIJING AND OLD DELHI USING SINGLE PARTICLE SOOT PHOTOMETRY MEASUREMENTS. (600373)
Rutambhara Joshi1, Dantong Liu1,2, Ernesto Villegas3, James D Allan4, Hugh Coe1, Michael Flynn5, Ben Langford6, Eiko Nemitz6, Neil Mullinger6, James Cash6, Chiara Di Marco6, Freya Anne Squires7, Will Stephen Drysdale8, James D Lee8, Adam Vaughan9, Yele Sun10, Pingqing Fu11, Simone Kotthaus12, Ranu Gadi13 and Shivani Shivani13, (1)University of Manchester, Manchester, United Kingdom, (2)Zhejiang University, Department of Atmospheric Sciences, School of Earth Sciences, Hangzhou, China, (3)University of Manchester, School of Earth, Atmospheric and Environmental Sciences, Manchester, United Kingdom, (4)The University of Manchester, Manchester, United Kingdom, (5)University of Manchester, School of Earth and Environmental Sciences, Manchester, United Kingdom, (6)Centre for Ecology and Hydrology, Edinburgh, United Kingdom, (7)Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, York, United Kingdom, (8)University of York, Department of Chemistry, York, United Kingdom, (9)University of York, Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, York, United Kingdom, (10)Institute of Atmospheric Physics, Chinese Academy of Sciences, State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Beijing, China, (11)Tianjin University, Institute of Surface-Earth System Science, Tianjin, China, (12)University of Reading, Reading, United Kingdom, (13)Indira Gandhi Delhi Technical University for Women, Applied Sciences & Humanities, Delhi, India
 
The Dependence of the Optical Properties of Soot Aggregates on their Morphological Mixing State (607407)
Ogochukwu Yvonne Enekwizu1, Divjyot Singh2, Mary McGuinness3 and Alexei F Khalizov3, (1)New Jersey Institute of Technology, Chemical and Materials Engineering, Newark, NJ, United States, (2)New Jersey Institute of Technology, Physics and Mathematical Sciences, Newark, NJ, United States, (3)New Jersey Institute of Technology, Chemistry and Environmental Science, Newark, NJ, United States
 
Effect of pH on the Chemical and Optical Properties of Brown Carbon Aerosol (612424)
Kevin Jansen, University of Colorado at Boulder, Boulder, CO, United States and Margaret A Tolbert, Univ Colorado, CIRES and Department of Chemistry, Boulder, CO, United States
 
Direct Radiative Effects of Light-absorbing Carbonaceous Aerosols in E3SM (616831)
Yan Feng, Argonne National Laboratory, Environmental Science Division, Argonne, IL, United States, Xiaohong Liu, Texas A&M University College Station, College Station, TX, United States, Laura Fierce, Brookhaven National Laboratory, Environmental & Climate Sciences, Upton, NY, United States, Zifeng Lu, Argonne National Laboratory, Argonne, IL, United States and Lulu Xu, Department of Earth System Science, Tsinghua University, Beijing, China
 
Chemical attribution of enhanced absorption by aged wildfire aerosol in smoke plumes from the Woodbury Fire, Arizona (624051)
James Edward Lee1, Allison C Aiken2, Manvendra Krishna Dubey2, Christian M Carrico3, Petr Chylek4, Sabina Gulick5 and Jaimy Karacaoglu6, (1)Los Alamos National Laboratory, EES-14: Earth Systems Observations, Los Alamos, NM, United States, (2)Los Alamos National Laboratory, Los Alamos, NM, United States, (3)AECOM, Fort Collins, CO, United States, (4)Los Alamos Natl Lab, Los Alamos, NM, United States, (5)New Mexico Institute of Technology and Mining, Socorro, NM, United States, (6)New Mexico Institute of Technology and Mining, Socorro, United States
 
Microphysical properties of refractory black carbon during the Atmospheric Tomography (ATom) mission (628845)
Joseph M Katich, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States and Joshua Peter Schwarz, NOAA ESRL, Boulder, CO, United States
 
Measurements to Determine Mixing State of Black Carbon Emitted From the 2017/2018 California Wildfires and Urban Los Angeles (629223)
Joseph Ko1, Trevor Serge Krasowsky1 and George A Ban-Weiss2, (1)University of Southern California, Los Angeles, CA, United States, (2)University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, CA, United States
 
A New Field-portable Dual-cell Multiwavelength Photoacoustic Spectrometer with Integrated Nephelometer (632216)
Rajan K Chakrabarty and Benjamin Sumlin, Washington University in St Louis, St. Louis, MO, United States
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