Preprints
https://doi.org/10.5194/gmd-2017-178
https://doi.org/10.5194/gmd-2017-178
Submitted as: development and technical paper
 | 
04 Aug 2017
Submitted as: development and technical paper |  | 04 Aug 2017
Status: this preprint was under review for the journal GMD but the revision was not accepted.

Importance of the advection scheme for the simulation of water isotopes over Antarctica by general circulation models: a case study with LMDZ-iso (LMDZ5a revision 1750)

Alexandre Cauquoin and Camille Risi

Abstract. Atmospheric general circulation models (AGCMs) are known to have a warm and isotopically enriched bias over Antarctica. We test here the hypothesis that these biases are consequences of a too diffusive advection. Using the LMDZ-iso model, we show that a good representation of the advection, especially on the horizontal, is very important to reduce the bias in the isotopic contents of precipitation above this area and to improve the modelled water isotopes – temperature relationship. A good advection scheme is thus essential when using GCMs for paleoclimate applications based on polar water isotopes.

Alexandre Cauquoin and Camille Risi
 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Alexandre Cauquoin and Camille Risi
Alexandre Cauquoin and Camille Risi

Viewed

Total article views: 1,264 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
840 346 78 1,264 88 95 82
  • HTML: 840
  • PDF: 346
  • XML: 78
  • Total: 1,264
  • Supplement: 88
  • BibTeX: 95
  • EndNote: 82
Views and downloads (calculated since 04 Aug 2017)
Cumulative views and downloads (calculated since 04 Aug 2017)

Viewed (geographical distribution)

Total article views: 1,187 (including HTML, PDF, and XML) Thereof 1,186 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Latest update: 24 Feb 2024
Download
Short summary
AGCMs are known to have a warm and isotopically enriched bias over Antarctica. We test here the hypothesis that these biases are consequences of a too diffusive advection. We show here that a good representation of the advection, especially on the horizontal, is very important to reduce the bias in the isotopic contents of precipitation above this area and to improve the modelled water isotopes – temperature relationship, essential when using GCMs for paleoclimate applications.