What drives daily precipitation over the central Amazon? Differences observed between wet and dry seasons

Biscaro, Thiago S.; Machado, Luiz A. T.; Giangrande, Scott E.; Jensen, Michael P.

doi:https://doi.org/10.5194/acp-21-6735-2021

Articles | Volume 21, issue 9

https://doi.org/10.5194/acp-21-6735-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-6735-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 9

Research article

|

05 May 2021

Research article |

| 05 May 2021

What drives daily precipitation over the central Amazon? Differences observed between wet and dry seasons

Thiago S. Biscaro, Luiz A. T. Machado, Scott E. Giangrande, and Michael P. Jensen

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Final revised paper (published on 05 May 2021)
Preprint (discussion started on 22 Oct 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review by David K. Adams', David Adams, 17 Dec 2020
- AC1: 'Reply on RC1', Thiago Biscaro, 25 Jan 2021
RC2: 'Review of ACP-2020-1098', Anonymous Referee #2, 11 Feb 2021
- AC2: 'Reply on RC2', Thiago Biscaro, 24 Mar 2021

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Thiago Biscaro on behalf of the Authors (24 Mar 2021) Author's response Author's tracked changes Manuscript

ED: Publish as is (30 Mar 2021) by Radovan Krejci

AR by Thiago Biscaro on behalf of the Authors (30 Mar 2021)

Short summary

This study suggests that there are two distinct modes driving diurnal precipitating convective clouds over the central Amazon. In the wet season, local factors such as turbulence and nighttime cloud coverage are the main controls of daily precipitation, while dry-season daily precipitation is modulated primarily by the mesoscale convective pattern. The results imply that models and parameterizations must consider different formulations based on the seasonal cycle to correctly resolve convection.