Articles | Volume 17, issue 22
https://doi.org/10.5194/acp-17-13833-2017
https://doi.org/10.5194/acp-17-13833-2017
Research article
 | 
21 Nov 2017
Research article |  | 21 Nov 2017

Sensitivity of surface temperature to radiative forcing by contrail cirrus in a radiative-mixing model

Ulrich Schumann and Bernhard Mayer

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Cited articles

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Short summary
It is generally assumed that a positive radiative forcing of the atmosphere implies a warming of the Earth surface. This assumption is valid for well-mixed greenhouse gases but is not guaranteed for disturbances which cause a vertically variable radiative heating rate profile with warming in the upper troposphere and cooling near the surface. This conceptual study shows that the warming induced by contrail cirrus prevails only for fast vertical heat exchange by mixing within the troposphere.
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