Journal Highlights

High-altitude aircraft data may help improve climate models


Sulfur dioxide released from volcanoes or power plants causes acid rain and leads to particles that play a role in breaking down the protective ozone layer high in the atmosphere. But those particles also reflect sunlight away from Earth, leading some to propose that people could inject sulfur dioxide (SO2) high in the atmosphere to mitigate global warming. New research in Geophysical Research Letters provides the first actual measurements of the chemical, SO2, in the tropical upper troposphere/lower stratosphere—and there’s a whole lot less than some scientists estimated.

“These new data will be important for improving climate models, evaluating satellite data, and understanding the potential of climate intervention scenarios,” said lead author Andrew Rollins, a scientist with the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado Boulder who works in the NOAA Earth System Research Laboratory (ESRL)…more

Article Category
Research Letters
Atmospheric Science

The role of sulfur dioxide in stratospheric aerosol formation evaluated by using in situ measurements in the tropical lower stratosphere

A. W. Rollins, T. D. Thornberry, L. A. Watts, P. Yu, K. H. Rosenlof, M. Mills, E. Baumann, F. R. Giorgetta, T. V. Bui, M. Höpfner, K. A. Walker, C. Boone, P. F. Bernath, P. R. Colarco, P. A. Newman, D. W. Fahey, R. S. Gao
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