A103:
The Underapprecipated Aerosol Coarse Mode: Impacts on Climate and Biogeochemistry





Session ID#: 29190

Session Description:
The coarse 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 substantial impact on ice nuclei concentrations, on shortwave and longwave radiative forcings, and when deposited change the biogeochemistry and impact on the carbon cycle. There is a need to synthesize the current state of knowledge about coarse mode aerosol, including the sources, physical and chemical characteristics, size distributions, optical properties, contribution to ice nucleation, atmospheric processing, and fate, to better quantify their role in biogeochemical cycles and the climate system. This session is being developed to encourage the presentation of work that addresses these aspects of coarse mode aerosol in measurements and models to encourage synthesis of our understanding. Individual observational studies at specific locations, cross-scales studies, and global modeling synthesis studies are encouraged.
Primary Convener:  Natalie M Mahowald, Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, United States
Conveners:  Christine Wiedinmyer1, Heikki Lihavainen2 and Marje Prank2,3, (1)University of Colorado at Boulder, CIRES, Boulder, CO, United States(2)Finnish Meteorological Institute, Helsinki, Finland(3)Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, United States
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
1622 Earth system modeling [GLOBAL CHANGE]
1630 Impacts of global change [GLOBAL CHANGE]

Abstracts Submitted to this Session:

Oleg Dubovik1, Tatyana Lapyonok2, Pavel Litvinov3, Anton Lopatin3, Benjamin Torres4, David Fuertes4, Xin Huang2, Fabrice Ducos2 and Yevgeny Derimian5, (1)University of Lille 1, Villeneuve D''Ascq C, France, (2)University of Lille 1, Laboratoire d'Optique Atmosphérique, Villeneuve d'Ascq, France, (3)GRASP-SAS, Villeneuve d'Ascq, France, (4)GRASP - SAS, Villeneuve d'Ascq, France, (5)CNRS, Paris Cedex 16, France
Christine Wiedinmyer1, Heikki Lihavainen2, Natalie M Mahowald3, Andres Alastuey4, Samuel Albani5, Paulo Artaxo6, Gilles Bergametti7, Stuart Batterman8, Janice Brahney9, Robert A Duce10, Yan Feng11, Clifton Buck12, Paul A Ginoux13, Ying Chen14, Cecile Guieu15, David Cohen16, Jenny L Hand17, Roy M Harrison18, Barak Herut19, Akinori Ito20, Remi Losno21, Dario Gomez22, Maria Kanakidou23, William M Landing24, Benoit Laurent25, Nikos Mihalopoulos26, Katherine Mackey27, Willy Maenhaut28, Christoph Hueglin29, Chad Milando30, Ronald Miller31, Stelios Myriokefaitakis26, Jason Caufield Neff32, Marco Pandolfi4, Adina Paytan33, Carlos Perez Garcia-Pando34, Marje Prank3, Joseph M Prospero35, Elisa Tamburo36, Daniela Varrica36, Michelle Wong37 and Yan Zhang38, (1)University of Colorado at Boulder, CIRES, Boulder, CO, United States, (2)Finnish Meteorological Institute, Helsinki, Finland, (3)Cornell University, Department of Earth and Atmospheric Sciences, Ithaca, NY, United States, (4)Spanish National Research Council (CSIC), Institute of Environmental Assessment and Water Research (IDÆA), Barcelon, Spain, (5)CNRS, Gif-sur-Yvette, France, (6)Institute of Physics, University of São Paulo, São Paulo, Brazil, (7)LISA Laboratoire Interuniversitaire des Systèmes Atmosphériques, Créteil Cedex, France, (8)University of Michigan Ann Arbor, School of Public Health, Ann Arbor, MI, United States, (9)Utah State University, Department of Watershed Sciences, Logan, UT, United States, (10)Texas A&M University, of Oceanography and Department of Atmospheric Sciences, College Station, TX, United States, (11)Argonne National Laboratory, Argonne, IL, United States, (12)University of Georgia, Department of Marine Sciences, Athens, GA, United States, (13)Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, (14)Fudan University, Shanghai Key Laboratory of Atmospheric Particle Pollution Prevention, Department of Environmental Science & Engineering, Shanghai, China, (15)CNRS, Villefranche Sur Mer, France, (16)Australian Nuclear Science and Technology Organisation, Menai, New South Wales, Australia, (17)Colorado State University, Fort Collins, CO, United States, (18)University of Birmingham, Birmingham, United Kingdom, (19)Israel Oceanographic and Limnological Research, Haifa, Israel, (20)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (21)UMR 7154 CNRS, Institut de Physique du Globe de Paris, Sorbonne Paris CitéUniv Paris Diderot, Paris, France, (22)Comision Nacional de Energia Atomica, Buenos Aires, Argentina, (23)Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, Heraklion, Greece, (24)Florida State University, Department of Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States, (25)CNRS 7583 - Université Paris-Est Créteil - Université Paris Diderot, Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), Créteil Cedex, France, (26)University of Crete, Environmental Chemical Processes Laboratory, Department of Chemistry, Voutes, Heraklion, Greece, (27)University of California, Irvine, Earth System Science, Irvine, CA, United States, (28)Ghent Univ, Gent, Belgium, (29)Swiss Federal Laboratories for Materials Science and Technology, Empa, Duebendorf, Switzerland, (30)University of Michigan, Ann Arbor, Department of Environmental Health Sciences, School of Public Health, Ann Arbor, MI, United States, (31)NASA Goddard Institute for Space Studies, Dept of Applied Physics and Applied Math, Columbia University, New York, NY, United States, (32)University of Colorado at Boulder, Sustainability Innovation Lab at Colorado, Boulder, CO, United States, (33)UCSC-Inst Marine Sciences, Santa Cruz, CA, United States, (34)Barcelona Supercomputing Center, Barcelona, Spain, (35)University of Miami, Miami, FL, United States, (36)Dipartimento di Scienze della Terra e del Mare (DiSTeM), Palermo, Italy, (37)Cornell University, Department of Ecology and Evolutionary Biology, Ithaca, NY, United States, (38)Fudan University, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Shanghai, China
Evgueni Kassianov1, Mikhail S Pekour1, Connor Joseph Flynn2, Larry K Berg3, Josef Beranek1, Alla Zelenyuk1, Chun Zhao4, L. Ruby Leung3, Po-Lun Ma1, Laura Riihimaki5, Jerome D Fast6, Jim Barnard7, Gannet Gannet Hallar8, Ian McCubbin8, Edwin W Eloranta9, Allison C McComiskey10 and Philip J Rasch5, (1)Pacific Northwest National Laboratory, Richland, WA, United States, (2)PNNL, Richland, VA, United States, (3)PNNL / Climate Physics, Richland, WA, United States, (4)University of Science and Technology of China, Hefei, China, (5)Pacific Northwest National Lab, Richland, WA, United States, (6)Pacific Northwest National Laboratory, Atmospheric Sciences & Global Change Division, Richland, WA, United States, (7)University of Nevada Reno, Atmospheric Sciences Program, Department of Physics, Reno, NV, United States, (8)DRI / Storm Peak Laboratory, Steamboat Springs, CO, United States, (9)University of Wisconsin, Madison, WI, United States, (10)NOAA Boulder, Boulder, CO, United States
Akinori Ito, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, Guangxing Lin, Pacific Northwest National Lab, Richland, WA, United States and Joyce Penner, Univ Michigan, Ann Arbor, MI, United States
Heikki Lihavainen1, Mansour Alghamdi2, Antti Hyvärinen1, Tareq Hussein3, Kimmo Neitola1, M. Khoder2, A. S. Abdelmaksoud2, H. Al-Jeelani2, I. I. Shabbaj2 and F. M. Almehmadi2, (1)Finnish Meteorological Institute, Helsinki, Finland, (2)King Abdulaziz University, Jeddah, Saudi Arabia, (3)University of Helsinki, Helsinki, Finland
Allison C McComiskey, NOAA Boulder, Boulder, CO, United States, Hagen Telg, Earth System Research Laboratory, CSD, Boulder, CO, United States, Patrick J Sheridan, NOAA/ESRL/GMD, Boulder, CO, United States and Evgueni Kassianov, PNNL, Richland, VA, United States
Matthew Christopher Wozniak1, Allison Steiner1, Andrew P Ault2, Eric A Kort1, Traci Lersch3 and Gary Casuccio3, (1)University of Michigan, Department of Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, (2)University of Michigan, Ann Arbor, MI, United States, (3)RJ Lee Group, Inc, Monroeville, PA, United States
Trevor C VandenBoer1, Courtney M Laprise2, Bryan K Place3, Kate A. Edwards4, Cora Young1 and Susan E Ziegler5, (1)York University, Chemistry, Toronto, ON, Canada, (2)Memorial University, Earth Sciences, St. John's, NF, Canada, (3)Memorial University, Chemistry, St. John's, NF, Canada, (4)Natural Resources Canada, Canadian Forest Service, Atlantic Forestry Center, Corner Brook, NF, Canada, (5)Memorial University, Earth Sciences, St John's, NF, Canada
Joseph M. Conny, National Institute of Standards and Technology, Gaithersburg, MD, United States and Diana Luz Ortiz-Montalvo, National Institute of Standards and Technology Gaithersburg, Gaithersburg, MD, United States
Jenny L Hand, Colorado State Univ, Fort Collins, CO, United States, Bret A Schichtel, National Park Service, Air Resources Division, Denver, CO, United States and Thomas E Gill, University of Texas at El Paso, Geological Sciences / Environmental Science and Engineering Program, El Paso, TX, United States