What controls the low ice number concentration in the upper troposphere?

Cirrus clouds in the tropical tropopause play a key role in regulating the moisture entering the stratosphere through their dehydrating effect. Low ice number concentrations ( &lt;  200 L<sup>−1</sup>) and high supersaturations (150–160 %) have been observed in these clouds. Diffe...

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Bibliographic Details
Main Authors: C. Zhou, J. E. Penner, G. Lin, X. Liu, M. Wang
Format: Article
Language:English
Published: Copernicus Publications 2016-10-01
Series:Atmospheric Chemistry and Physics
Online Access:https://www.atmos-chem-phys.net/16/12411/2016/acp-16-12411-2016.pdf