Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Atmos. Chem. Phys., 17, 3619-3636, 2017
http://www.atmos-chem-phys.net/17/3619/2017/
doi:10.5194/acp-17-3619-2017
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
15 Mar 2017
Optical and geometrical properties of cirrus clouds in Amazonia derived from 1 year of ground-based lidar measurements
Diego A. Gouveia et al.

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Short summary
We derive the first comprehensive statistics of cirrus clouds over a tropical rain forest. Monthly frequency of occurrence can be as high as 88 %. The diurnal cycle follows that of precipitation, and frequently cirrus is found in the tropopause layer. The mean values of cloud top, base, thickness, optical depth and lidar ratio were 14.3 km, 12.9 km, 1.4 km, 0.25, and 23 sr respectively. The high fraction (42 %) of subvisible clouds may contaminate satellite measurements to an unknown extent.
We derive the first comprehensive statistics of cirrus clouds over a tropical rain forest....
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