Articles | Volume 17, issue 5
https://doi.org/10.5194/acp-17-3619-2017
https://doi.org/10.5194/acp-17-3619-2017
Research article
 | 
15 Mar 2017
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, Boris Barja, Henrique M. J. Barbosa, Patric Seifert, Holger Baars, Theotonio Pauliquevis, and Paulo Artaxo

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Boris Barja on behalf of the Authors (11 Jan 2017)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (16 Jan 2017) by Geraint Vaughan
RR by James Campbell (28 Jan 2017)
RR by Anonymous Referee #1 (30 Jan 2017)
ED: Reconsider after major revisions (30 Jan 2017) by Geraint Vaughan
AR by Boris Barja on behalf of the Authors (19 Feb 2017)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (21 Feb 2017) by Geraint Vaughan
RR by James Campbell (21 Feb 2017)
RR by Anonymous Referee #1 (22 Feb 2017)
ED: Publish as is (23 Feb 2017) by Geraint Vaughan
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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.
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