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

Jia, Wang and Mizobata, Kohei and Haoguo, Hu and Meibing, Jin and Sheng, Zhang and Johnson, Walter and Shimada, Koji and Ikeda, Moto (2008) Modeling seasonal variations of ocean and sea ice circulation in the Beaufort and Chukchi Seas: A model-data fusion study. Advances in Polar Science, 19 (2). pp. 168-184.

PDF Download (4MB)

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 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.

Item Type:	Article
Related URLs:
Keywords:	ocean and sea ice circulation, Beaufort and Chukchi Seas, model-data fusion
Subjects:	Natural Environment > Cryosphere Natural Environment > Oceans
Organizations:	Unspecified
Date Deposited:	05 Sep 2023 10:04
URI:	http://library.arcticportal.org/id/eprint/2358

Actions (login required)

View Item