A53M:
Reducing Uncertainty in Aerosol Effects on Climate I

Submit an Abstract to this Session



Session ID#: 30808

Session Description:
Large uncertainty in the radiative forcing of anthropogenic aerosols has persisted through all IPCC assessment reports since 1995 despite significant developments in model complexity, increases in global observations and advances in our knowledge of aerosol processes. This session invites submissions that address the causes of uncertainty and methodologies to reduce the uncertainty through process-based model evaluation and constraint of model simulations using observations of aerosols, clouds and radiation. With an emphasis of AGU 2017 on data and emerging technologies, we particularly welcome studies that demonstrate novel ways of integrating model and observation data to narrow the uncertainty in model simulations. The session will include advances in our understanding of global-scale forcing as well as studies of smaller-scale phenomena where the implications for reducing uncertainty in regional and global-scale forcing are demonstrated.
Primary Convener:  Ken S Carslaw, University of Leeds, Leeds, United Kingdom
Conveners:  Steven John Ghan, Pacific Northwest National Laboratory, Richland, United States and Matthew Christensen, Rutherford Appleton Laboratory, Didcot, OX11, United Kingdom
Chairs:  Steven John Ghan, Pacific Northwest National Laboratory, Richland, United States and Ken S Carslaw, University of Leeds, Leeds, United Kingdom
OSPA Liaison:  Ken S Carslaw, University of Leeds, Leeds, United Kingdom
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0320 Cloud physics and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0365 Troposphere: composition and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

The Impact of Aerosol Microphysical Representation in Models on the Direct Radiative Effect (253301)
David A Ridley, Massachusetts Institute of Technology, Cambridge, MA, United States and Colette L Heald, MIT, Cambridge, MA, United States
Paleo-dust insights onto dust-climate interactions (231875)
Samuel Albani, CNRS, Gif-sur-Yvette, France and Natalie M Mahowald, Cornell University, Earth and Atmospheric Sciences, Ithaca, NY, United States
Exploring the observational constraints on the simulation of brown carbon (206928)
Xuan Wang, City University of Hong Kong, School of Energy and Environment, Hong Kong, Hong Kong, Colette L Heald, MIT, Cambridge, MA, United States, Jiumeng Liu, Pacific Northwest National Laboratory, Richland, WA, United States, Rodney J Weber, Georgia Inst Tech, Atlanta, GA, United States, Pedro Campuzano-Jost, University of Colorado Boulder, Department of Chemistry and Cooperative Institute for Research in Environmental Sciences, Boulder, United States, Jose L Jimenez, Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, United States; Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Chemistry, Boulder, United States, Dr. Joshua Peter Schwarz, PhD, NOAA Earth System Research Laboratory, Chemical Sciences Division, Boulder, CO, United States and Anne Elizabeth Perring, Colgate University, Hamilton, NY, United States
Reduction of uncertainty in global black carbon direct radiative forcing constrained by observations (214827)
Rong Wang, Carnegie Institution for Science Stanford, Stanford, CA, United States, Yves Balkanski, LSCE, CEA CNRS UVSQ, Gif-Sur-Yvette Cedex, France, Olivier Boucher, Institut Pierre Simon Laplace, Paris, France, Philippe Ciais, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette, France, Gregory L Schuster, Retiree NASA Langley Research Center, Hampton, United States, Frederic Chevallier, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France, Bjorn Hallvard Samset, CICERO, Oslo, Norway, Myrto Valari, Laboratoire de Météorologie Dynamique, Palaiseau Cedex, France, Junfeng Liu, Peking University, Beijing, China and Shu Tao, Peking University, College of Urban and Environmental Sciences, Beijing, China
Characterizing Radiative Parameterization Uncertainty in Modeled Aerosol Instantaneous Radiative Effect as part of RFMIP (290075)
Alexandra L Jones, Princeton University, Princeton, NJ, United States, Daniel Feldman, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, Stuart Freidenreich, GFDL/NOAA, Princeton, NJ, United States, David Paynter, NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, V Ramaswamy, NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States and William Drew Collins, Berkeley Lab and UC Berkeley, Berkeley, United States
Global-mean BC lifetime as an indicator of model skill? Constraining the vertical aerosol distribution using aircraft observations (243013)
Marianne Tronstad Lund1, Bjorn Hallvard Samset2, Ragnhild B Skeie1 and Terje Berntsen3, (1)CICERO Center for International Climate Research, Oslo, Norway, (2)CICERO, Oslo, Norway, (3)University of Oslo, Department of Geosciences, Oslo, Norway

See more of: Atmospheric Sciences