A23F:
The Underappreciated Aerosol Coarse Mode I Posters


Session ID#: 8230

Session Description:
Many areas of the world show an aerosol volume distribution with a significant coarse mode and sometimes a dominant coarse mode. The large coarse mode is usually due to dust, but other aerosols can also play an important role. This mode tends to be ignored because it is difficult to measure, and the perception that it does not exert a large effect on aerosol forcing or chemistry. However, coarse mode aerosols can have a significant effect on radiative forcing, both in the shortwave and longwave spectrum, and these forcings must be accounted for in atmospheric models. Forcings based only on fine mode aerosols have the potential to be misleading, as demonstrated in recent studies.  We seek papers regarding: coarse mode aerosol generation mechanisms, transport and deposition, chemical composition and interaction with fine mode aerosols, visible and thermal IR refractive radiative properties, coarse mode effects on forcing, and specific instrumentation needs.
Primary Conveners:  Evgueni Kassianov, Pacific Northwest National Laboratory, Richland, WA, United States
Conveners:  William P Arnott1, Jim Barnard1 and Allison C McComiskey2, (1)University of Nevada Reno, Reno, NV, United States(2)Brookhaven National Laboratory, Upton, NY, United States
Chairs:  Evgueni Kassianov, Pacific Northwest National Laboratory, Richland, WA, United States and Allison C McComiskey, NOAA Boulder, Boulder, CO, United States
OSPA Liaisons:  Jim Barnard, University of Nevada Reno, Reno, NV, United States
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0345 Pollution: urban and regional [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0360 Radiation: transmission and scattering [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0394 Instruments and techniques [ATMOSPHERIC COMPOSITION AND STRUCTURE]

Abstracts Submitted to this Session:

Jessica L Axson1, Andrew P Ault1, Nathaniel May2, Kerri Pratt3 and Isabel D Colon-Bernal2, (1)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (2)University of Michigan, Ann Arbor, MI, United States, (3)University of Michigan Ann Arbor, Department of Chemistry and Department of Earth & Environmental Sciences, Ann Arbor, MI, United States
Karl D Froyd1, Daniel M Murphy2, Charles A Brock1, Luke D Ziemba3, Bruce E Anderson3 and James C Wilson4, (1)NOAA Boulder, Boulder, CO, United States, (2)NOAA, Boulder, CO, United States, (3)NASA Langley Research Center, Hampton, VA, United States, (4)Univ Denver, Denver, CO, United States
Connor Joseph Flynn1, Robert P. Dahlgren2, Stephen E Dunagan3, Roy R Johnson3, Meloe S Kacenelenbogen4, Samuel E LeBlanc3,5, John M Livingston6, Jens Redemann3, Beat Schmid7, Michal Segal-Rosenhaimer3, Yohei Shinozuka4, Qin Zhang4, Sebastian Schmidt8, Brent Holben9, Aliaksandr Sinyuk9, Johnathan W Hair10, Bruce E Anderson10 and Luke D Ziemba10, (1)PNNL, Richland, VA, United States, (2)CSUMB/NASA Ames Research Center, MS245-4, Moffett Field, CA, United States, (3)NASA Ames Research Center, Moffett Field, CA, United States, (4)Bay Area Environmental Research Institute Sonoma, Sonoma, CA, United States, (5)Oak Ridge Associated Universities Inc., Oak Ridge, TN, United States, (6)SRI International Menlo Park, Menlo Park, CA, United States, (7)Pacific Northwest National Laboratory, Richland, WA, United States, (8)University of Colorado Boulder, Boulder, CO, United States, (9)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (10)NASA Langley Research Center, Hampton, VA, United States
Evgueni Kassianov1, Mikhail S Pekour1, Connor Joseph Flynn2, Larry K Berg3, Josef Beranek1, Alla Zelenyuk1, Jim Barnard4, Gannet Gannet Hallar5, Allison C McComiskey6 and Philip J Rasch1, (1)Pacific Northwest National Laboratory, Richland, WA, United States, (2)PNNL, Richland, VA, United States, (3)Pacific Northwest National Laboratory, Atmospheric Sciences & Global Change Division, Richland, WA, United States, (4)University of Nevada Reno, Reno, NV, United States, (5)Desert Research Institute, Reno, NV, United States, (6)NOAA Boulder, Boulder, CO, United States
Sonia M Kreidenweis and Paul J DeMott, Colorado State University, Atmospheric Science, Fort Collins, CO, United States
Christopher D Cappa1, Katheryn R Kolesar1, Xiaolu Zhang2, Dean B Atkinson3, Mikhail S Pekour4, Rahul A Zaveri5, Alla Zelenyuk4 and Qi Zhang2, (1)University of California Davis, Civil and Environmental Engineering, Davis, CA, United States, (2)University of California Davis, Davis, CA, United States, (3)Portland State University, Chemistry Department, Portland, OR, United States, (4)Pacific Northwest National Laboratory, Richland, WA, United States, (5)Pacific Northwest Natl Lab, Richland, WA, United States
Matthew Christopher Wozniak, University of Michigan, Department of Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, Allison L Steiner, University of Michigan, Ann Arbor, MI, United States, Fabien Solmon, Abdus Salam International Center for Theoretical Physics, Trieste, Italy and Yang Li, University of Michigan Ann Arbor, Ann Arbor, MI, United States
Eli Dueker1, Gregory D O'Mullan2 and Angel Montero2, (1)Bard College, Annandale-On-Hudson, NY, United States, (2)Queens College, CUNY, Flushing, NY, United States
Hema Priyamvada R1, Akila Muthalagu1, Ravikrishna R1, Rama Shankar Verma1, Ligy Philip1, Viviane Desprès2, Ulrich Poeschl3 and Sachin S Gunthe1, (1)Indian Institute of Technology Madras, Chennai, India, (2)Johannes Gutenberg-Universität Mainz, Botany, Mainz, Germany, (3)Max- Planck- Institut fur Chemie, Multiphase Chemistry, Mainz, Germany
Aswathy Erat Valsan1, Ravikrishna R1, Biju C V2, John A Huffman3, Ulrich Poeschl4 and Sachin S Gunthe1, (1)Indian Institute of Technology Madras, Chennai, India, (2)College of Engineering Munnar, Civil Engineering, Munnar, India, (3)University of Denver, Colorado, United States, (4)Max Planck Institute for Chemistry, Multiphase Chemistry, Mainz, Germany
Linlin Liang, CAMS Chinese Academy of Meteorological Sciences, Beijing, China, Guenter Engling, Desert Research Institute Reno, Reno, NV, United States and Kebin He, Collaborative Innovation Center for Regional Environmental Quality, Beijing, China
Kotaro Murata and Daizhou Zhang, Prefectural University of Kumamoto, Kumamoto, Japan
Shuvashish Kundu1, Kimitaka Kawamura2, Pingqing Fu3, Meehye Lee4, Eri Tachibana2, Minoru Kobayashi2 and Jinsang Jang2, (1)University of Iowa, Iowa City, IA, United States, (2)Hokkaido University, Sapporo, Japan, (3)IAP Insititute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, (4)Korea University, Seoul, South Korea