极地研究

极地研究 ›› 2008, Vol. 19 ›› Issue (2-English): 212-217.

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Contribution of a pathway through the Arctic Ocean to the recent reduction in the ice cover

 Motoyoshi Ikeda   

  1. Geaduate School of Environmental Science, Hokkaido University, Sapporo, Japan
  • 出版日期:1958-06-30 发布日期:1958-06-30
  • 通讯作者: Motoyoshi Ikeda

Contribution of a pathway through the Arctic Ocean to the recent reduction in the ice cover

 Motoyoshi Ikeda   

  1. Geaduate School of Environmental Science, Hokkaido University, Sapporo, Japan
  • Online:1958-06-30 Published:1958-06-30
  • Contact: Motoyoshi Ikeda

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摘要：

The sea ice cover in the Arctic Ocean has been reducing and hit the low record in the summer of 2007. The anomaly was extremely large in the Pacific sector. The sea level height in the Bering Sea vs.the Greenland Sea has been analyzed and compared with the current meter data through the Bering Strait. A recent peak existed as a consequence of atmospheric circulation and is considered to contribute to inflow of the Pacific Water into the Arctic Basin. The timing of the Pacific Water inflow matched with the sea ice reduction in the Pacific sector and suggests a significant increase in heat flux. This component should be included in the model prediction for answering the question when the Arctic sea ice becomes a seasonal ice cover.

关键词: Arctic Ocean, ice cover, Bering Sea

Abstract:

The sea ice cover in the Arctic Ocean has been reducing and hit the low record in the summer of 2007. The anomaly was extremely large in the Pacific sector. The sea level height in the Bering Sea vs.the Greenland Sea has been analyzed and compared with the current meter data through the Bering Strait. A recent peak existed as a consequence of atmospheric circulation and is considered to contribute to inflow of the Pacific Water into the Arctic Basin. The timing of the Pacific Water inflow matched with the sea ice reduction in the Pacific sector and suggests a significant increase in heat flux. This component should be included in the model prediction for answering the question when the Arctic sea ice becomes a seasonal ice cover.

Key words: Arctic Ocean, ice cover, Bering Sea