首页> 外文期刊>Journal of oceanography >Frequency-wavenumber spectra of equatorial waves detected from satellite altimeter data
【24h】

Frequency-wavenumber spectra of equatorial waves detected from satellite altimeter data

机译:从卫星高度计数据中检测到的赤道波的波数频谱

获取原文
           

摘要

The sea surface height anomaly in the Pacific equatorial area was separated into equatorial modes using satellite altimeter data. The power-spectral density (PSD) was obtained for the east-west wavenumber and frequency for each separated mode. The PSD distribution was compared with the theoretical dispersion curve for the equatorial modes derived by Matsuno (1966). The first Rossby modes have a high-density distribution that is slightly lower than the theoretical dispersion curve, but the Kelvin mode and the higher Rossby modes have high-density distribution that almost matches each dispersion curve. Results of analyses of satellite observational data show that wave motion near the equator mainly shows characteristics of equatorial waves, especially for a intraseasonal time scale.
机译:利用卫星高度计数据将太平洋赤道地区的海面高度异常分为赤道模式。获得了每个分离模式的东西波数和频率的功率谱密度(PSD)。将PSD分布与Matsuno(1966)推导的赤道模式的理论色散曲线进行比较。第一种罗斯比模式具有高密度分布,该密度略低于理论色散曲线,但是开尔文模式和更高的罗斯比模式具有几乎与每条色散曲线匹配的高密度分布。卫星观测数据的分析结果表明,赤道附近的波动主要表现出赤道波的特征,特别是在季节内的时间尺度上。

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