Stratospheric aerosol climate engineering and climate change are both expected to change stratospheric dynamics and chemistry. These changes may result in both an increase and decrease of column ozone depending on injection location, amount and timing, which impacts surface UV radiation. How large will these changes be and can we comprehensively assessed these changes and aim to reduce them?
Dr. Simone Tilmes is a Project Scientist II at National Center for Atmospheric Research (NCAR) and the liaison for the Community Earth System Model (CESM) chemistry-climate working group. Her scientific interests cover the understanding and evaluation of chemical, aerosol and dynamical processes in chemistry-climate models. She has investigated past, present and future evolution of the ozone hole in both hemispheres based on models and observations. Further research includes interactions in tropospheric chemistry, aerosols, air quality, long-range transport of pollutants, and tropospheric ozone. She also studies the impact of geoengineering on the Earth’s climate system, the hydrological cycle, and the impact of solar radiation management on dynamics and chemistry in both troposphere and stratosphere.