Preprints
https://doi.org/10.5194/gmd-2020-95
https://doi.org/10.5194/gmd-2020-95

Submitted as: development and technical paper 19 Jun 2020

Submitted as: development and technical paper | 19 Jun 2020

Review status: a revised version of this preprint was accepted for the journal GMD and is expected to appear here in due course.

A fully coupled Arctic sea ice-ocean-atmosphere model (ArcIOAM v1.0) based on C-Coupler2: model description and preliminary results

Shihe Ren1, Xi Liang1, Qizhen Sun1, Hao Yu2, L. Bruno Tremblay3, Xiaoping Mai1, Fu Zhao1, Ming Li1, Na Liu1, Zhikun Chen1, and Yunfei Zhang1 Shihe Ren et al.
  • 1Key Laboratory of Research on Marine Hazards Forecasting, National Marine Environmental Forecasting Center, Ministry of Natural Resources, Beijing, China
  • 2Ministry of Education Key Laboratory for Earth System Modelling, Department of Earth System Science, Tsinghua University, Beijing, China
  • 3Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, Canada

Abstract. The implementation of a new Arctic regional coupled sea ice-ocean-atmosphere model (ArcIOAM) and its preliminary results in the year of 2012 are presented in this paper. A newly developed coupler, C-Coupler2 (the Community Coupler 2), is used to couple the Arctic sea ice-oceanic configuration of the MITgcm (Massachusetts Institute of Technology general circulation model) with the Arctic atmospheric configuration of the Polar WRF (Weather Research and Forecasting) model. ArcIOAM is demonstrated with focus on seasonal simulation of the Arctic sea ice and ocean state in the year of 2012. The results obtained by ArcIOAM, along with the experiment of one-way coupling strategy, are compared with available observational data and reanalysis products. From the comparison, results obtained from two experiments both realistically capture the sea ice and oceanic variables in the Arctic region over a 1-year simulation period. The two-way coupled model has better performance in terms of sea ice extent, concentration, thickness and SST, especially in summer. This indicates that sea ice-ocean-atmosphere interaction takes a crucial role in controlling Arctic summertime sea ice distribution. The coupled model and documentation are available at  https://doi.org/10.5281/zenodo.3742692 (last access: 9 June 2020), and the source code is maintained at  https://github.com/cdmpbp123/Coupled_Atm_Ice_Oce (last access: 7 April 2020).

Shihe Ren et al.

 
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Status: closed
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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Shihe Ren et al.

Shihe Ren et al.

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Short summary
Sea ice plays a crucial role in global energy and water budge. To get a better simulation of seaice, we coupled seaice model with atmospheric and ocean model to form a fully coupled system. The seaice simulation results of coupled system demonstrated two-way coupled model has better performance in terms of sea ice, especially in summer. This indicates that sea ice-ocean-atmosphere interaction takes a crucial role in controlling Arctic summertime sea ice distribution.