Estimating thermohaline variability of the equatorial Pacific Ocean from satellite altimetry
文献类型：期刊论文
| 作者 | Sun Che1,2; Ma Xiao3
|
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2016-11-01 |
| 卷号 | 59期号:11页码:2213-2222 |
| 关键词 | Equatorial Pacific TRITON buoys Satellite altimetry GEM Vertical coherence |
| 英文摘要 | The vertical thermohaline structure in the western equatorial Pacific is examined with a Gravest Empirical Mode (GEM) diagnosis of in-situ mooring measurements. The poor GEM performance in estimating deep thermohaline variability from satellite altimetry confirms a lack of vertical coherence in the equatorial ocean. Mooring observation reveals layered equatorial water with phase difference up to 6 months between thermocline and sub-thermocline variations. The disjointed layers reflect weak geostrophy and resemble pancake structures in non-rotating stratified turbulence. A coherency theorem is then proved, stating that traditional stationary GEM represents in-phase coherent structure and can not describe vertically out-of-phase variability. The fact that stationary GEM holds both spatial and temporal coherence makes it a unique tool to diagnose vertical coherent structure in geophysical flows. The study also develops a non-stationary GEM projection that captures more than 40% of the thermohaline variance in the equatorial deep water. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000387396800011 |
| 版本 | 出版稿 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/136204]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Natl Lab Marine Sci & Technol, Qingdao 266071, Peoples R China 3.State Ocean Adm, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun Che,Ma Xiao. Estimating thermohaline variability of the equatorial Pacific Ocean from satellite altimetry[J]. SCIENCE CHINA-EARTH SCIENCES,2016,59(11):2213-2222. |
| APA | Sun Che,&Ma Xiao.(2016).Estimating thermohaline variability of the equatorial Pacific Ocean from satellite altimetry.SCIENCE CHINA-EARTH SCIENCES,59(11),2213-2222. |
| MLA | Sun Che,et al."Estimating thermohaline variability of the equatorial Pacific Ocean from satellite altimetry".SCIENCE CHINA-EARTH SCIENCES 59.11(2016):2213-2222. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。