Coupled Atmosphere- Ocean- Ice- Ecosystem Models

Introduction

As an integrative theme in IARC's pursuit to reduce uncertainty in arctic climate change prediction, this study synthesizes elements from the JAMSTEC funded Ocean Ecosystem Modeling, Arctic Ocean Models and Observations, and the Arctic Atmosphere group.   Thus, this group is working within the second stage of integration. Two primary exercises are currently underway in this endeavor.

Researchers are developing the Sea Ice-Ocean-Oil spill Modeling System (SIOMS) for the near shore Beaufort and Chukchi Seas under support of the Minerals Management Service. The Project is in Phase II: improvement and parameterization.   Because of a heavy computational demand, the model is implemented in both the IBM and Cray supercomputers located in the Arctic Regional Supercomputer Center (ARSC) at UAF. The numerical integrations of the model with seasonal force show promising results.

Simulations of the arctic ice-ocean circulation using a high-resolution global coupled (CCSR/NISS/FRCGC)* atmosphere-ice-ocean model on the 'Earth Simulator' supercomputer was evaluated to determine model performance, physics soundness, and sensitivity. Model results were also compared with available observations such as ice extent, temperature, and salinity. The results indicate that this coupled global model captures some of the most important dynamic and thermodynamic processes in the Arctic Ocean. Further analysis of the model is underway, but the model is able to make projections regarding global warming with increasing CO₂.

*
CCSR - Center for Climate System Research
NISS - National Institute for Environmental Studies
FRCGC - Frontier Research Center for Global Change

Lead Scientist

Jia Wang

Participants

Haoguo Hu
Meibing Jin
Sheng Zhang
Xiangdong Zhang

Other Collaborators or Contacts

Suzuki, T, Frontier Research Center for Global Change, Yokohama, Japan
Takahashi, J., Frontier Research Center for Global Change, Yokohama, Japan
Hasumi, H., CCSR, Tokyo University, Japan
Walsh, J., IARC, UAF, USA

Japan Agency for Marine-Earth Science and Technology Some material presented on this website is based on work supported by JAMSTEC. The content and views are those of the author(s) and do not necessarily reflect the views of the Japan Agency for Marine-Earth Science and Technology. JAMSTEC accepts no responsibility or liability for any damages, whether incurred directly or indirectly, due to the use of this material. The Japan Marine Science and Technology Center became the "Independent Administrative Institution, Japan Agency for Marine-Earth Science and Technology" in April 2004.