What controls the seasonal cycle of columnar methane observed by GOSAT over different regions in India?

Chandra, Naveen; Hayashida, Sachiko; Saeki, Tazu; Patra, Prabir K.

doi:https://doi.org/10.5194/acp-17-12633-2017

Articles | Volume 17, issue 20

https://doi.org/10.5194/acp-17-12633-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-12633-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 20

Research article

|

24 Oct 2017

Research article |

| 24 Oct 2017

What controls the seasonal cycle of columnar methane observed by GOSAT over different regions in India?

Naveen Chandra, Sachiko Hayashida, Tazu Saeki, and Prabir K. Patra

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Final revised paper (published on 24 Oct 2017)
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Preprint (discussion started on 26 Apr 2017)
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Interactive discussion

Status: closed

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

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- Supplement

RC1: 'review of Chandra et al.', Anonymous Referee #1, 11 May 2017
- AC1: 'Reply to Anonymous Referee #1', Naveen Chandra, 03 Jul 2017
RC2: 'Review comments on Chandra et al.: {\it What controls the seasonal cycle of columnar methane observed by {GOSAT} over different regions in India?', Anonymous Referee #2, 30 Jun 2017
- AC2: 'Reply to Anonymous Referee#2', Naveen Chandra, 14 Aug 2017

Peer-review completion

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

AR by Naveen Chandra on behalf of the Authors (14 Aug 2017) Author's response Manuscript

ED: Publish as is (11 Sep 2017) by Manvendra Krishna Dubey

AR by Naveen Chandra on behalf of the Authors (11 Sep 2017)

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Short summary

This study shows difficulties in interpreting columnar dry-air mole fractions of methane (XCH₄) for surface emissions of CH₄ over the South Asia region, without separating the role of chemistry and transport. Using a chemistry-transport model, we suggest that a link between surface emissions and higher levels of XCH₄ is not always valid in this region of complex monsoonal meteorology, although there is often a fair correlation between the seasonal variations in surface emissions and XCH₄.