| Session Details | |
| Section | AS - Atmospheric Sciences |
| Session Title | Chemistry-Climate Interactions |
| Main Convener | Dr. Shiliang Wu (Michigan Technological University, United States) |
| Co-convener(s) | Dr. Xiaofeng Huang (Peking University Shenzhen Graduate School, China) Dr. Ling-Yan He (Peking University Shenzhen Graduate School, China) |
| Session Description | Better understanding of the interactions between climate and atmospheric chemistry is greatly needed for both research and policy. Global and regional climate change are highly interrelated with atmospheric chemistry. First, climate change could have large impacts on atmospheric chemistry by changing a suite of meteorological variables including temperature, humidity, clouds, precipitation and atmospheric circulation. These changes can directly influence the atmospheric chemistry and deposition of some important chemical species including ozone and aerosols, the oxidizing capacity of the atmosphere (OH) and hence the abundance and distribution of chemically-active greenhouse gases (e.g. methane). Climate change can also affect the natural emissions associated with lightning, wild fires, soils, dust storms, aquatic systems, and vegetation. On the other hand, the perturbations to atmospheric chemistry can also affect climate in important and complicated ways. The changes in abundance and distributions of greenhouse gases and aerosols can directly influence climate through radiative forcing. The changes in aerosols can also influence clouds and the hydrological cycle in the atmosphere. We invite presentations that use modeling, field, laboratory and satellite approaches to understand important mechanisms for chemistry-climate interactions on global and regional scales and for past, present and future climates. Specific topics of interest include, but are not limited to: Impact of climate change on short-lived (e.g. aerosols) or chemically-active (e.g. methane, stratosphere and troposphere ozone) forcing agents; Impact of climate change on air quality; Interactions between ozone and aerosols in the changing climate; Improvement in radiative forcing estimates of aerosols and ozone; Feedback of atmospheric chemistry to climate change; System models with climate-chemistry interactions. |