Journal cover Journal topic
Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
Geosci. Model Dev., 10, 977-989, 2017
https://doi.org/10.5194/gmd-10-977-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Development and technical paper
27 Feb 2017
On the numerical stability of surface–atmosphere coupling in weather and climate models
Anton Beljaars et al.
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Interactive discussionStatus: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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RC1: 'A Review of "On the numerical stability of surface-atmosphere coupling in weather and climate models" by Anton Beljaars, Emanuel Dutra and Gianpaolo Balsamo', Florian LEMARIE, 14 Jun 2016 Printer-friendly Version Supplement 
AC1: 'Reply to reviewer 1', Anton Beljaars, 19 Aug 2016 Printer-friendly Version 
 
RC2: 'Review of 'On the numerical stability of surface-atmosphere coupling in weather and climate models': excellent ideas but could be better explained', Alex West, 29 Jul 2016 Printer-friendly Version Supplement 
AC2: 'Reply to reviewer 2', Anton Beljaars, 19 Aug 2016 Printer-friendly Version 
Peer review completion
AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anton Beljaars on behalf of the Authors (14 Sep 2016)  Author's response  Manuscript
ED: Referee Nomination & Report Request started (16 Sep 2016) by Sophie Valcke
RR by Alex West (03 Oct 2016)  
RR by Jan Polcher (05 Dec 2016)  
ED: Reconsider after major revisions (14 Dec 2016) by Sophie Valcke  
AR by Anton Beljaars on behalf of the Authors (13 Jan 2017)  Author's response  Manuscript
ED: Publish subject to technical corrections (20 Jan 2017) by Sophie Valcke  
AR by Anton Beljaars on behalf of the Authors (26 Jan 2017)  Author's response  Manuscript
CC BY 4.0
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Short summary
Coupling an atmospheric model with snow and sea ice modules presents numerical stability challenges in integrations with long time steps as commonly used for weather prediction and climate simulations. Explicit flux coupling is often applied for simplicity. In this paper a simple method is presented to stabilize the coupling without having to introduce fully implicit coupling. A formal stability analysis confirms that the method is unconditionally stable.
Coupling an atmospheric model with snow and sea ice modules presents numerical stability...
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