Christian George (France) and Parisa Ariya (Canada)
Merete Bilde, Aarhus University, Denmark
Jonathan Reid, University of Bristol, UK
Understanding atmospheric physicochemical processes is pivotal for a quantitative description of its past, current and future composition. This session is inviting curiosity oriented and fundamental contributions that will provide a better understanding of key atmospheric processes including aerosol optics, spectroscopy, multiphase photochemical processes, fundamental cloud nucleation (CCN and IN), gas-phase and heterogeneous kinetics, thermodynamics, microphysics, new aerosol formation and transformations, homogeneous and heterogeneous kinetics on aerosols and clouds, gas-aerosol partitioning and air-snow/ice/water processes. This session also encompasses novel analytical approaches to explore fundamental atmospheric chemistry mechanisms, processes and constituents, including emerging contaminants.
Robyn Schofield (Australia) and Meehye Lee (Korea)
Owen Cooper, CIRES University of Colorado NOAA ESRL, USA & Martin Schultz, Jülich Forschungszentrum, Germany
Xuemei Wang, Jinan University, China
Analyzing and interpreting simulations and data from various platforms across multiple spatial and time scales can identify critical issues and underpin predictions of future changes in the atmospheric environment. This session aims to facilitate discussion and integration of major findings from multidisciplinary approaches in atmospheric chemistry research, which will promote scientific understanding and support decision making. We welcome contributions detailing the numerical analysis of data from observations and models, model evaluation against observations, application of such data for prediction, data assimilation, and machine learning through high performance computing. All types of observation are in scope, from surface to the upper atmosphere, and we also welcome studies of new methodological development in measurement and theory including physical, chemical, and statistical models.
Abdus Salam (Bangladesh) and Nestor Rojas (Colombia)
Maria de Fatima Andrade, University of Sao Paulo, Brazil
S. Suresh Babu, Vikram Sarabhai Space Centre, India
This session highlights the state of air quality around the globe, the sources of pollutant emissions affecting air quality, and their impacts on health and the environment. This includes: studies on air quality in urban and rural areas and in microenvironments; the strength and toxicity of emission sources, their contribution to concentrations in the atmosphere, and the successes and challenges to reduce emissions; the transport and transformation of air pollutants in the atmosphere; exposure to air pollutants and their impacts on health; and the impacts of air pollutants on the environment and on climate.
Mei Zheng (China) and Markus Ammann (Switzerland)
Tomás Sherwen, University of York, UK
Tara Kahan, University of Saskatchewan, Canada
Interfaces separate environmental compartments at the larger scale and represent transfer points for important biogeochemical and atmospheric cycles. Interfaces also separate liquid, solid and gas phase entities at the molecular level and are implicated in nucleation processes, phase transfer, multiphase chemistry and photochemistry. They affect the climate impact of aerosol particles, exchange between oceans and terrestrial ecosystems and the atmosphere and influence cloud properties. This session focusses on laboratory, field and modelling studies highlighting the importance of interfacial properties and processes in atmospheric chemistry and emphasizing the specific role of the interface down to small scales.
Chairs: Joel Thornton (USA) and Clare Murphy (Australia)
Elliot Treharne, Head of Air Quality at the Greater London Authority, UK
Sally Pusede, University of Virginia, USA
This session looks to the future, presenting a mixture of policy, innovation and new technologies. This includes forecasting/modelling of atmospheric chemistry and composition in the years and decades ahead; emerging technologies that will shape the future; and policies and solutions for our future atmosphere. The session also welcomes submissions about new approaches to engaging the public, policy makers and other communities and stakeholders, as well as emerging research topics or geographical areas of special