Changes in upper troposphere/lower stratosphere aerosol since 1980 in the Goddard Earth Observing System (GEOS-5) model

Dr. Valentina Aquila, American University, Department of Environmental Science, Washington, DC, United States; NASA GSFC, Greenbelt, United States, Peter Richard Colarco, NASA Goddard Space Flight Center, Atmospheric Chemistry and Dynamics Laboratory, Greenbelt, MD, United States and Luke Oman, NASA Goddard Space Flight Center, Greenbelt, United States