Evaluation of water vapour assimilation in the tropical  upper troposphere
and lower stratosphere by a chemical transport model

Payra, Swagata; Ricaud, Philippe; Abida, Rachid; El Amraoui, Laaziz; Attié, Jean-Luc; Rivière, Emmanuel; Carminati, Fabien; von Clarmann, Thomas

doi:https://doi.org/10.5194/amt-9-4355-2016

Articles | Volume 9, issue 9

https://doi.org/10.5194/amt-9-4355-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-9-4355-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 9, issue 9

Research article

|

06 Sep 2016

Research article |

| 06 Sep 2016

Evaluation of water vapour assimilation in the tropical upper troposphere and lower stratosphere by a chemical transport model

Swagata Payra, Philippe Ricaud, Rachid Abida, Laaziz El Amraoui, Jean-Luc Attié, Emmanuel Rivière, Fabien Carminati, and Thomas von Clarmann

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Final revised paper (published on 06 Sep 2016)
Preprint (discussion started on 17 Mar 2016)

Interactive discussion

Status: closed

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

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RC1: 'Review of amt-2016-47', Anonymous Referee #1, 14 Apr 2016
- AC1: 'Reply to the comments from Reviewer#1', Philippe RICAUD, 27 Jul 2016
RC2: 'Review of Evaluation of water vapour assimilation in the upper troposphere and lower stratosphere by a chemical transport model', Anonymous Referee #2, 09 Jun 2016
- AC2: 'Reply to the comments from Reviewer#2', Philippe RICAUD, 27 Jul 2016

Short summary

The study deals with the budget of water vapour (H₂O) at the tropical tropopause. The MOCAGE-VALENTINA assimilation tool has been used to assimilate Microwave Limb Sounder H₂O space-borne measurements within the 316–5 hPa range from August 2011 to March 2013. Diagnostics are developed to assess the quality of the analyses depending on several parameters. Sensitivity studies show the improvement on the analyses when assimilating measurements of better quality, mainly over the convective areas.