Emerging pattern of global change in the upper atmosphere and ionosphere
Laštovička, J.; Akmaev, R.A.; Beig, G.; Bremer, J.; Emmert, J.T.; Jacobi, C.; Jarvis, Martin J.; Nedoluha, G.; Portnyagin, Yu.I.; Ulich, T.. 2008 Emerging pattern of global change in the upper atmosphere and ionosphere. Annales Geophysicae, 26 (5). 1255-1268. 10.5194/angeo-26-1255-2008Before downloading, please read NORA policies.
angeo-26-1255-2008.pdf - Published Version
Restricted to NERC registered users only
In the upper atmosphere, greenhouse gases produce a cooling effect, instead of a warming effect. Increases in greenhouse gas concentrations are expected to induce substantial changes in the mesosphere, thermosphere, and ionosphere, including a thermal contraction of these layers. In this article we construct for the first time a pattern of the observed long-term global change in the upper atmosphere, based on trend studies of various parameters. The picture we obtain is qualitative, and contains several gaps and a few discrepancies, but the overall pattern of observed long-term changes throughout the upper atmosphere is consistent with model predictions of the effect of greenhouse gas increases. Together with the large body of lower atmospheric trend research, our synthesis indicates that anthropogenic emissions of greenhouse gases are affecting the atmosphere at nearly all altitudes between ground and space.
|Programmes:||BAS Programmes > Global Science in the Antarctic Context (2005-2009) > Sun Earth Connections|
|Additional Keywords:||atmospheric composition and structure; thermosphere; composition and chemistry; evolution of the atmosphere; ionosphere; ionosphere-atmosphere interactions|
|NORA Subject Terms:||Atmospheric Sciences
|Date made live:||17 Jan 2011 14:41|
Actions (login required)