| Session Details | |
| Section | AS - Atmospheric Sciences |
| Session Title | Haze: Chemistry, Physics, Meteorology, Emissions, Climate, Processing, Fog, and More. Looking Across Spatial Scales from Regional to Global |
| Main Convener | Prof. Jason Cohen (Sun Yat-sen University, China) |
| Co-convener(s) | Dr. Yun Qian (Pacific Northwest National Laboratory, United States) Dr. Arnico Panday (International Centre for Integrated Mountain Development (ICIMOD), Nepal) Dr. Bhaskar Gunturu (King Abdullah University of Science and Technology, Saudi Arabia) |
| Session Description | Atmospheric air pollution, or haze, is a combination of aerosols and gasses that reduce visibility, are detrimental to human health and ecosystems, while also altering the energy balance of the atmosphere. They consist of both directly emitted species and precursors that undergo further processing in-situ. Their emissions are mostly a result of human activities. At the present time, our ability to measure, model, and understand the sources, distribution, transport, evolution, and fate in the real atmosphere, is still evolving. In particular, due to non-linearities in the science and impacts make understanding haze at higher concentrations or further from their initial sources, more difficult still. However, in the real atmosphere, levels of high concentration are frequently found, including far from known sources, or otherwise spread over hundreds of kilometers to hemispheric. These levels are frequently sufficiently high as to impact human health, visibility, radiative forcing, clouds, and other aspects of the Earth System as a whole. This session welcomes studies across scientific and academic disciplines looking to better understand, quantify, or constrain haze and associated causes and impacts. In specific, we are interested in studies that look beyond typical urban scales, to examine conditions and factors that are involved in these larger-spatial scale haze events. Measurement studies, modeling studies, and theoretical approaches are all welcome. This session has been run in this or a similar format for 5 years at AOGS and we look forward to another interesting, multi-disciplinary, and successful meeting. |