Recent measurements demonstrate that the «background»
stratospheric aerosol layer is persistently variable rather than constant, even in the absence of major volcanic eruptions.
The Persistently Variable «Background»
Stratospheric Aerosol Layer and Global Climate Change
«The Persistently Variable «Background»
Stratospheric Aerosol Layer and Global Climate Change.»
Vernier, J. - P., L.W. Thomason, et al. 2011: Major influence of tropical volcanic eruptions on
the stratospheric aerosol layer during the last decade.
The authors of the new study used computer simulations to see which changes in
the stratospheric aerosol layer could be attributed to coal burning in Asia and worldwide volcanic emissions from 2000 to 2010.
When sulfur dioxide emitted by a volcano rises up to
the stratospheric aerosol layer of the atmosphere, it undergoes chemical reactions, forming particles that reflect sunlight back into space instead of letting it get to the surface of the planet.
Recent measurements demonstrate that the «background»
stratospheric aerosol layer is persistently variable rather than constant, even in the absence of major volcanic eruptions.
The persistently variable «background»
stratospheric aerosol layer and global climate change
1979 Harshvardhan, «Perturbations of the Zonal Radiative Balance by
a Stratospheric Aerosol Layer.»