...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geophysical Research Letters >Inverse solution for pentadal variability in the North Atlantic
【24h】

Inverse solution for pentadal variability in the North Atlantic

机译：

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Seven pentads (1960-1964 to 1990-1994) of the North Atlantic climatology by Lozier et al. (1995) are analyzed with the help of an inverse finite-element ocean circulation model. The model solves for temperature and salinity fields that are close to observations and respect stationary dynamical balances, and produces estimates of the circulation. The first two EOF's of transport streamfunction variability (39 and 26 of the explained variance) are found to have a high correlation with the North Atlantic Oscillation (NAO) index averaged over pentads and lagged negatively by three years (first EOF) and between zero and one years (second EOF). The spatial pattern of the first EOF corresponds to an anticyclonic anomaly (in the positive NAO phase) located between 20 and 45 degrees N with the largest variability between 30 and 45 degrees N, and much weaker cyclonic anomalies in the subpolar gyre. The second EOF shows a sharp anticyclonic anomaly along the Gulf Stream and its extension and a wide cyclonic cell over most of subtropical gyre. The anomaly in the meridional overturning streamfunction is characterized by a single positive cell which poorly correlates with the NAO index.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号