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
- First Published:
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- | DOI:
Eos.org: Earth & Space Science News
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The atmosphere varies naturally on all length scales from millimeters to thousands of kilometers, and on all time scales from seconds to decades and longer. This special collection of Geophysical Research Letters synthesizes and summarizes that variability through a phenomenological census. The collection brings together some of the most influential and definitive papers to have been published in this journal in recent years. The topics covered include turbulence on time scales of seconds and minutes, gravity waves on time scales of hours, weather systems on time scales of days, atmospheric blocking on time scales of weeks, the Madden–Julian Oscillation on time scales of months, the Quasi-Biennial Oscillation and El Niño–Southern Oscillation on time scales of years, and the North Atlantic, Arctic, Antarctic, Pacific Decadal, and Atlantic Multi-decadal Oscillations on time scales of decades. The collection is accompanied by a Commentary article, which provides an authoritative, concise, and accessible point of reference for the most important modes of atmospheric variability.
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