• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >A computer program for predicting oceanic tidal currents
【24h】

A computer program for predicting oceanic tidal currents

机译：用于预测海洋潮流的计算机程序

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A computer model is developed for predicting depth-averaged tidal currents from a high-degree spherical harmonic expansion of the elevation field for any diurnal or semidiurnal harmonic constituent. Local friction is ignored, but loading and self-attraction potentials are fully allowed for by use of sequences of Love numbers. Critical latitudes for diurnal tides are covered by direct evaluation of the cyclonic component of current, and linear interpolation of the anti-cyclonic component within plus or minus 5 degrees of latitude. Results agree reasonably well with selected measurements of M2 currents and with M2 currents computed within Schwiderski's model. However, the Cartwright-Ray model apparently gives noisier results for M2 and is unacceptably noisy for diurnal constituents. Predictions from either model become unreliable within about 500 km of the coast, but in the open ocean use of our method applied to the Schwiderski maps probably yields a prediction accuracy in the region 5-10 mm/s.

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