Quasi-Decadal Circumpolar Variability of Antarctic Sea Ice

DOI Web Site 被引用文献3件 参考文献18件

書誌事項

公開日
2013
資源種別
journal article
DOI
  • 10.2151/sola.2013-008
公開者
公益社団法人 日本気象学会

説明

Decadal variability of Antarctic sea ice and a role of ocean dynamics are examined with sea ice concentration (SIC) and sea surface temperature (SST) derived from satellite microwave observation and obtained by a high resolution coupled ocean-atmosphere-ice general circulation model (CGCM). Sea ice observations revealed a circumpolar variability of sea ice edge (SIE) on quasi-decadal time scale. SST also showed variation on similar time scale with warm (cool) anomaly roughly corresponding to retreat (extension) of SIE at negative (positive) southern annular mode (SAM). CGCM run without anthropogenic forcing and volcanic eruptions revealed that the leading mode of SIC is quasi-circumpolar pattern with a dominant time scale of 12-17 years and the leading mode of SST also has a similar pattern with the SIC showing a high degree of inverse correlation. The modeled SAM significantly correlates with these leading modes of both SIC and SST, representing the same structure with the observations. This indicates that the oceanic natural variability is the key to understand the quasi-decadal variability in sea ice.

収録刊行物

  • SOLA

    SOLA 9 (0), 32-35, 2013

    公益社団法人 日本気象学会

被引用文献 (3)*注記

もっと見る

参考文献 (18)*注記

もっと見る

関連プロジェクト

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ