Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL081029 |
Ocean Surface Wave-Current Signatures From Satellite Altimeter Measurements | |
Quilfen, Y.; Chapron, B. | |
2019-01-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:1页码:253-261 |
文章类型 | Article |
语种 | 英语 |
国家 | France |
英文摘要 | Ocean currents can strongly impact the propagation of swell systems. Satellite altimetry routinely provides measurements of ocean surface significant wave heights (Hs). A self-consistent space-scale decomposition is applied to Hs measurements obtained from different altimeters. This method helps reveal overlooked statistical properties at scales less than 100km, where mesoscale and submesoscale upper ocean circulation drives a significant part of the variability in the coupled ocean-atmosphere system. In particular, systematic signatures related to wave-current interactions are clear at global and regional scales. In the Agulhas current system, the proposed space-scale decomposition further reveals organized and persistent patterns. To leading order, the redistribution of swell energy follows the cumulative impact of the large-scale current vorticity field on wave train kinematics. This relationship causes significant swell ray deflection and localized trapping phenomena, which are adequately captured by altimeter measurements. Plain Language Summary Long and energetic surface waves radiating from distant storms may eventually cover a full ocean basin with a lifetime that can extend over a few weeks. Chances are that these swell fields will propagate over regions characterized by strong ambiant upper ocean currents. Resulting interactions can then trigger sea state variability, including the formation of severe crossing sea conditions. To better document these anticipated effects at global and regional scales, a new methodology is applied to best exploit multisatellite altimeter measurements. As obtained, the resulting augmented data sets provide an unprecedented evidence of the co-variability of surface waves and currents over all ocean basins. More regionally, the analysis shows that persistent and localized sea state anomalies in the Agulhas current region are well explained by swell refraction and focusing effects in the variable current stream. The proposed methodology opens new perspectives for studies and applications combining numerical modeling and satellite observations. |
英文关键词 | altimeter observations wave-current interactions denoising method |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000456938600028 |
WOS关键词 | EMPIRICAL MODE DECOMPOSITION ; REFRACTION ; CIRCULATION ; AGULHAS ; SERIES ; SWELL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26829 |
专题 | 气候变化 |
作者单位 | Univ Brest, IFREMER, Lab Oceanog Phys & Spatiale, CNRS,IRD,IUEM, Brest, France |
推荐引用方式 GB/T 7714 | Quilfen, Y.,Chapron, B.. Ocean Surface Wave-Current Signatures From Satellite Altimeter Measurements[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(1):253-261. |
APA | Quilfen, Y.,&Chapron, B..(2019).Ocean Surface Wave-Current Signatures From Satellite Altimeter Measurements.GEOPHYSICAL RESEARCH LETTERS,46(1),253-261. |
MLA | Quilfen, Y.,et al."Ocean Surface Wave-Current Signatures From Satellite Altimeter Measurements".GEOPHYSICAL RESEARCH LETTERS 46.1(2019):253-261. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Quilfen, Y.]的文章 |
[Chapron, B.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Quilfen, Y.]的文章 |
[Chapron, B.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Quilfen, Y.]的文章 |
[Chapron, B.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
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。
修改评论