...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advances in Atmospheric Sciences >Time-Frequency Characteristics of the Relationships Between Tropical Indo-Pacific SSTs
【24h】

Time-Frequency Characteristics of the Relationships Between Tropical Indo-Pacific SSTs

机译：热带印度洋-太平洋SST之间关系的时频特征

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

In this study, several advanced analysis methods are applied to understand the relationships between the Nino-3.4 sea surface temperatures (SST) and the SSTs related to the tropical Indian Ocean Dipole (IOD). By analyzing a long data record, the authors focus on the time-frequency characteristics of these relationships, and of the structure of IOD. They also focus on the seasonal dependence of those characteristics in both time and frequency domains.rnAmong the Nino-3.4 SST, IOD, and SSTs over the tropical western Indian Ocean (WIO) and eastern Indian Ocean (EIO), the WIO SST has the strongest annual and semiannual oscillations. While the Niiio-3.4 SST has large inter-annual variability that is only second to its annual variability, the IOD is characterized by the largest semiannual oscillation, which is even stronger than its annual oscillation. The IOD is strongly and stably related to the EIO SST in a wide range of frequency bands and in all seasons. However, it is less significantly related to the WIO SST in the boreal winter and spring. There exists a generally weak and unstable relationship between the WIO and EIO SSTs, especially in the biennial and higher frequency bands. The relationship is especially weak in summer and fall, when IOD is apparent, but appears highly positive in winter and spring, when the IOD is unimportantly weak and even disappears. This feature reflects a caution in the definition and application of IOD. The Niiio-3.4 SST has a strong positive relationship with the WIO SST in all seasons, mainly in the biennial and longer frequency bands. However, it shows no significant relationship with the EIO SST in summer and fall, and with IOD in winter and spring.
机译：在这项研究中，应用了几种高级分析方法来了解Nino-3.4海表温度（SST）与与热带印度洋偶极子（IOD）有关的SST之间的关系。通过分析较长的数据记录，作者专注于这些关系的时频特性以及IOD的结构。他们还关注时空和频域上这些特征的季节依赖性。在热带印度洋西部（WIO）和印度洋东部（EIO）的Nino-3.4 SST，IOD和SST中，WIO SST具有最强的年度和半年度振荡。 Niiio-3.4 SST的年际变化很大，仅次于其年际变化，而IOD的特征是最大的半年度振荡，甚至比其年度振荡还要强。在各种频段和所有季节中，IOD与EIO SST密切相关且稳定。但是，在冬季和春季，它与WIO SST的关系不大。 WIO和EIO SST之间通常存在弱和不稳定的关系，尤其是在两年一次和更高的频段中。当IOD明显时，这种关系在夏季和秋季尤为弱，而在IOD变得不重要甚至消失时，在冬季和春季则呈现高度正相关。此功能反映了IOD定义和应用中的注意事项。 Niiio-3.4 SST在所有季节都与WIO SST有很强的正相关关系，主要在两年期和更长的频段。但是，它在夏季和秋季与EIO SST无关，在冬季和春季与IOD无关。

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