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Modeling seasonal variations of ocean and sea ice circulation in the Beaufort and Chukchi Seas: A model-data fusion study

WANG Jia Kohei Mizobata HU Haoguo JIN Mei-bing ZHANG Sheng Walter Johnson Koji Shimada Moto Ikeda

极地研究（英文版）2008，Vol.19Issue(2)：168-184,17.

Modeling seasonal variations of ocean and sea ice circulation in the Beaufort and Chukchi Seas: A model-data fusion study

WANG Jia ¹Kohei Mizobata ²HU Haoguo ³JIN Mei-bing ⁴ZHANG Sheng ⁵Walter Johnson ⁵Koji Shimada ⁶Moto Ikeda²

作者信息

1. NOAA Great Lakes Environmental Research Laboratory (GLERL) , 4840 S State Road, Ann Arbor, MI 48108USA
2. Department of Ocean Sciences, Tokyo University of Marine Science and Technology, 4-5-7 Kounan, Minato-ku,Tokyo, 108-8477, Japan
3. Cooperative Institute for Limnology and Ecosystems Research ( CILER ) , School of Natural Resources and Envi
4. ronment, University of Michigan, 4840 S State Road, Ann Arbor, MI 48108 USA
5. International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK 99775-7340, USA
6. Minerals Management Service, Department of Interior, 381 Elden Street, Herndon, VA 20170-4817 USA
折叠

摘要

Abstract

A 3.8-km Coupled Ice-Ocean Model (CIOM) was implemented to successfully reproduce many observed phenomena in the Beaufort and Chukchi seas, including the Bering-inflow-originated coastal current that splits into three branches:Alaska Coastal Water (ACW) , Central Channel, and Herald Valley branches. Other modeled phenomena include the Beaufort Slope Current (BSC) , the Beautort Gyre,the East Siberian Current (ESC), mesoscale eddies, seasonal landfast ice, sea ice ridging, shear, and deformation. Many of these downscaling processes can only be captured by using a high-resolution C1OM, nested in a global climate model. The seasonal cycles for sea ice concentration, thickness, velocity, and other variables are well reproduced with solid validation by satellite measurements. The seasonal cycles for upper ocean dynamics and thermodynamics are also well reproduced, which inelude the formation of the cold saline layer due to the injection of salt during sea ice formation, the BSC, and the subsurface upwelling in winter that brings up warm, even more saline Atlantic Water along the shelfbreak and shelf along the Beaufort coast.

关键词

ocean and sea ice circulation/Beaufort and Chukchi Seas/model-data fusion

Key words

ocean and sea ice circulation/Beaufort and Chukchi Seas/model-data fusion

引用本文复制引用

WANG Jia,Kohei Mizobata,HU Haoguo,JIN Mei-bing,ZHANG Sheng,Walter Johnson,Koji Shimada,Moto Ikeda..Modeling seasonal variations of ocean and sea ice circulation in the Beaufort and Chukchi Seas: A model-data fusion study[J].极地研究（英文版）,2008,19(2):168-184,17.

基金项目

We sincerely thank supports from the University of Alaska Costal Ma-rine Institute(CMI)and Minerals Management Service(MMS)and IARC/JAMSTEC Co-operative Agreement. JW wants to thank Drs. Dick Prentki of MMS for valuable guidance and for discussion during the course of this research. Thanks also go to Dre. Ron Lai and Caryn Smith of MMS for their inputs. JWalso wants to thank Dr.Vera Alexander, CMI di-rector, for providing reesarch vision in the beaufort and Chukchi seas. This study was part-ly supported by NSF OPP Project ARC-0712673 awarded to Yanling Yu and Hajo Eicken (PIs)and Jia Wang (co-PI). This is GLERL Contribution No.1497. （CMI）

极地研究（英文版）

ISSN：1674-9928

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