Understanding nighttime methane signals at the Amazon Tall Tower Observatory (ATTO)

Botía, Santiago; Gerbig, Christoph; Marshall, Julia; Lavric, Jost V.; Walter, David; Pöhlker, Christopher; Holanda, Bruna; Fisch, Gilberto; de Araújo, Alessandro Carioca; Sá, Marta O.; Teixeira, Paulo R.; Resende, Angélica F.; Dias-Junior, Cleo Q.; van Asperen, Hella; Oliveira, Pablo S.; Stefanello, Michel; Acevedo, Otávio C.

doi:https://doi.org/10.5194/acp-20-6583-2020

Articles | Volume 20, issue 11

https://doi.org/10.5194/acp-20-6583-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Amazon Tall Tower Observatory (ATTO) Special Issue

https://doi.org/10.5194/acp-20-6583-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 11

Research article

|

05 Jun 2020

Research article |

| 05 Jun 2020

Understanding nighttime methane signals at the Amazon Tall Tower Observatory (ATTO)

Santiago Botía, Christoph Gerbig, Julia Marshall, Jost V. Lavric, David Walter, Christopher Pöhlker, Bruna Holanda, Gilberto Fisch, Alessandro Carioca de Araújo, Marta O. Sá, Paulo R. Teixeira, Angélica F. Resende, Cleo Q. Dias-Junior, Hella van Asperen, Pablo S. Oliveira, Michel Stefanello, and Otávio C. Acevedo

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Final revised paper (published on 05 Jun 2020)
Preprint (discussion started on 13 Dec 2019)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of ‘Understanding nighttime methane signals at the Amazon Tall Tower Observatory (ATTO)’', Anonymous Referee #1, 15 Jan 2020
- AC1: 'Author response to referee 1', Santiago Botia, 08 Apr 2020
RC2: 'Referee Comments', Anonymous Referee #2, 19 Feb 2020
- AC2: 'Author response to referee 2', Santiago Botia, 08 Apr 2020

Peer-review completion

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

AR by Santiago Botía on behalf of the Authors (16 Apr 2020) Author's response

ED: Publish as is (04 May 2020) by Markku Kulmala

AR by Santiago Botía on behalf of the Authors (05 May 2020) Manuscript

Short summary

A long record of atmospheric methane concentrations in central Amazonia was analyzed. We describe events in which concentrations at 79 m are higher than at 4 m. These events are more frequent during the nighttime of dry season, but we found no association with fire signals. Instead, we suggest that a combination of nighttime transport and a nearby source could explain such events. Our research gives insights into how methane is transported in the complex nocturnal atmosphere in Amazonia.