| Modeling seasonal variations of ocean and sea ice circulation in the Beaufort and Chukchi Seas： A model-data fusion study |
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| 作者姓名： | Kohei Mizobata Walter Johnson Koji Shimada Moto Ikeda |
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| 作者单位： | [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 Environment, University of Michigan, 4840 S State Road, Ann Arbor, MI 48108 USA [4]International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK 99775-7340, USA [5]Minerals Management Service, Department of Interior, 381 Elden Street, Herndon, VA 20170-4817 USA [6]Graduate School of Earth and Environmental Science, Hokkaido University, Sapporo, Hokkaido, Japan |
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| 基金项目： | supports from the University of Alaska Costal Marine Institute(CMI) and Minerals Management Service(MMS) and IARC/JAMSTEC Cooperative Agreement; 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 |
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| 摘 要： | A 3.8-kin Coupled Ice-Ocean Model （C1OM） 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 Beaufort 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 CIOM, 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 include 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.
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| 关 键 词： | 季节变化 楚科奇海 海洋模式 气候模型 海冰 数据融合 循环 建模 |
Modeling seasonal variations of ocean and sea ice circulation in the Beaufort and Chukchi Seas: A model-data fusion study |
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| Kohei Mizobata,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].Chinese Journal of Polar Science,2008,19(2):168-184. |
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| Authors: | WANG Jia Kohei Mizobata HU Haoguo JIN Mei-bing ZHANG Sheng Walter Johnson Koji Shimada Moto Ikeda |
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| 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. |
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| Keywords: | ocean and sea ice circulation Beaufort and Chukchi Seas model-data fusion |
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