IOCAS-IR  > 海洋环流与波动重点实验室
Exploration of Tidal-Fluvial Interaction in the Columbia River Estuary Using S_TIDE
Pan, Haidong1,2; Lv, Xianqing1,2; Wang, Yingying1,2; Matte, Pascal3; Chen, Haibo2,4; Jin, Guangzhen1,5
2018-09-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN2169-9275
Volume123Issue:9Pages:6598-6619
Corresponding AuthorLv, Xianqing(xqinglv@ouc.edu.cn) ; Chen, Haibo(chenhb2015@qdio.ac.cn)
AbstractPlain Language Summary Numerous tidal phenomena, including river tides, internal tides, and tides in ice-covered bay, are nonstationary, which pose a great challenge for traditional tidal analysis methods. Based on the independent point scheme and cubic spline interpolation, a new approach, namely the enhanced harmonic analysis, is developed to deal with nonstationary tides. A MATLAB toolbox, S_TIDE, developed from the widely used T_TIDE, is used to realize the approach. The efficiency of S_TIDE is validated by analyzing a set of hourly water level observations from stations on the lower Columbia River. In all stations, the hindcast of S_TIDE is more accurate than NS_TIDE that is a powerful nonstationary tidal analysis tool adapted to river tides. The changing mean water level and tidal constituent properties obtained by S_TIDE are similar to those obtained by NS_TIDE, continuous wavelet transform, and empirical mode decomposition and highly consistent with theory on river tides. Moreover, different from NS_TIDE that only can be applied to river tides, enhanced harmonic analysis is free of dynamic content, assuming only known tidal frequencies. Therefore, S_TIDE can be applied to all kinds of nonstationary tides theoretically. Though powerful, S_TIDE also has some limitations: S_TIDE cannot be used for prediction and too many independent points in S_TIDE may induce computational memory overflow and unrealistic results. Based on the independent point scheme and cubic spline interpolation, a new approach, enhanced harmonic analysis, was developed to deal with nonstationary tides. Enhanced harmonic analysis is realized by a MATLAB toolbox, S_TIDE, which is developed from the widely used T_TIDE. S_TIDE assumes only known tidal frequencies and theoretically can be applied to all kinds of nonstationary tides and stationary tides. In this study, S_TIDE is applied to analyzing records of river rides that is one of the simplest kinds of nonstationary tides for which ample data are available. The method is compared with other methods to show its efficiency.
Keywordriver tides nonstationary tides tidal analysis tidal-fluvial interaction method S_TIDE
DOI10.1029/2018JC014146
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development[2016YFC1402304] ; National Natural Science Foundation of China[41606006] ; Key Research and Development Plan of Shandong Province[2016ZDJS09A02] ; Fundamental Research Funds for the Central Universities
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000447552600033
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/160424
Collection海洋环流与波动重点实验室
Corresponding AuthorLv, Xianqing; Chen, Haibo
Affiliation1.Ocean Univ China, Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Key Lab Phys Oceanog, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China
3.Environm & Climate Change Canada, Meteorol Res Div, Quebec City, PQ, Canada
4.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
5.Sun Yat Sen Univ, Sch Marine Sci, Key Lab Marine Resources & Coastal Engn Guangdong, Guangzhou, Guangdong, Peoples R China
Corresponding Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Pan, Haidong,Lv, Xianqing,Wang, Yingying,et al. Exploration of Tidal-Fluvial Interaction in the Columbia River Estuary Using S_TIDE[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2018,123(9):6598-6619.
APA Pan, Haidong,Lv, Xianqing,Wang, Yingying,Matte, Pascal,Chen, Haibo,&Jin, Guangzhen.(2018).Exploration of Tidal-Fluvial Interaction in the Columbia River Estuary Using S_TIDE.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,123(9),6598-6619.
MLA Pan, Haidong,et al."Exploration of Tidal-Fluvial Interaction in the Columbia River Estuary Using S_TIDE".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 123.9(2018):6598-6619.
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