Themes and Sessions

12a: Organic Aerosols: Identifying the Underlying Unknowns
Convenors: Yinon Rudich, Cristina Facchini
Keynotes: Allen Goldstein (University of California, Berkeley, USA) , Maria Kanakidou (University of Crete, Chemistry Dept, ECPL)
Orals: Thu AM, Thu PM
Posters: Tue AM
Current research identifies anthropogenic and natural organic aerosol as major uncertainty in climate research. The organic component contributes to the formation, mass, and properties of primary and secondary aerosols. In this session we will query what are the main formation mechanisms, do we account for all of them, what are the relevant properties of the aerosol organic component and how they tie to the large framework of climate and air quality.
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12b: Aerosol, Precipitation and Weather Patterns
Convenors: Ulrike Lohmann, Bjorn Stevens
Keynotes: Meinrat O. Andreae (Max Planck Institute for Chemistry., Mainz) , Zev Levin (Tel Aviv University, Israel)
Orals: Mon AM, Mon PM
Posters: Tue AM
Aerosols can interact with clouds and precipitation in many ways, acting either as cloud condensation or ice nuclei, or as absorbing particles, redistributing solar energy as thermal energy inside cloud layers. Also, by increasing aerosol and cloud optical depth, anthropogenic emissions of aerosols and their precursors contribute to a reduction of solar radiation at the surface, which affects the surface energy budget, the hydrological cycle and possible weather patterns.
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12c: Aerosol and Air Quality: From Local to Global Scale
Convenors: Spyros Pandis, Mark Z. Jacobson
Keynotes: Daniel Jacob (Harvard University, USA) , Ted Russell (Georgia Institute of Technology, Atlanta, USA)
Orals: Tue AM, Tue PM
Posters: Thu PM
Processes contributing to air quality problems including high particulate matter concentrations (both mass and number) take place in scales ranging from the local to the global. This session will focus on recent developments in our understanding of these processes and their interactions as well as the remaining research challenges.
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12d: Global Aerosol Source and Sink Processes
Convenors: Tami Bond, Natalie Mahowald
Keynotes: Laura Gallardo (Universidad de Chile) , Joseph Prospero (University of Miami, USA)
Orals: Tue PM, Wed AM
Posters: Mon AM
This session focuses on atmospheric aerosol cycles by following individual aerosol types, from source to sink to deposition records. Dust, organic matter and black carbon are highlighted here, but other species are welcome.
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12e: Aerosol Impacts on Climate, Energy and the Economy
Convenors: Surabi Menon, Jon Egill Kristjánsson
Keynote: Filippo Giorgi (ICTP, Trieste, Italy)
Orals: Wed AM
Posters: Mon AM
This session will cover topics that relate to aerosol effects on global climate change from the past to the future. This includes physical process treatments, feedbacks, uncertainties and impacts. The choice of energy sources, including renewables, on aerosol and greenhouse gas emissions, plus their corresponding impacts on climate, energy production and the economy will also be considered.
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12f: Why the Ocean is Important for the Atmosphere and Vice Versa
Convenors: Peter Liss, Colin O'Dowd
Keynotes: William Keene (University of Virginia, Charlottesville, USA) , Roland von Glasow (University of East Anglia, UK)
Orals: Fri AM, Fri PM
Posters: Thu PM
Marine aerosol both primary (sea spray generation) and secondary (reaction products of trace gases emitted from the ocean) contribute to both air quality and climate change through modification of haze and cloud layers. Conversely, land-derived dust containing Fe, N and P is transported over and deposited onto the oceans where it can affect biological activity, which can potentially feed back to trace gas formation and marine aerosol chemical composition.
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