IOCAS-IR  > 海洋环流与波动重点实验室
A global high-resolution ocean wave model improved by assimilating the satellite altimeter significant wave height
Yu, Huaming1,2,3,4; Li, Jiangyu1,2; Wu, Kejian1,2; Wang, Zhifeng5; Yu, Haiqing1,2,3,4; Zhang, Shaoqing2; Hou, Yijun6,7; Kelly, Ryan M.8
2018-08-01
Source PublicationINTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
ISSN0303-2434
Volume70Pages:43-50
Corresponding AuthorYu, Huaming(hmyu@ouc.edu.cn)
AbstractThis study examines the effects of data assimilation using Significant Wave Height (SWH) from three satellite altimeters, notably the Jason-2, Jason-3 and SAtellite with ARgos and ALtiKa (SARAL), orbiting in space and incorporating the data into a global high-resolution ocean wave model. The third-generation wave model, WAVEWATCH III (WW3), was adopted for numerical simulation and its spatial resolution was refined to 0.2 degrees. Data assimilation is carried out using the Optimal Interpolation (OI) scheme to demonstrate the feasibility and the benefits of simultaneously assimilating the along-track SWH data from multi-satellite altimeters into a global ocean wave model. Higher resolution global ocean wave models can advantageously account for the swell propagation from deep ocean waters without open boundary conditions, as well as simulate smaller scale wind waves from the coastal zones conveniently, effectively and in tandem. The Root Mean Square (RMS) of nonassimilation experiment is 0.54 m, which is smaller than the previous coarse resolution global wave modelling. Minor improvement is found when only one 10-min frequency, SWH data from the Jason-2 altimeter was assimilated into the global ocean wave model. However, the RMS against buoy observations is highly reduced (i.e. approximately 0.42 m) when the SWH data from three satellite altimeters (i.e. Jason-2, Jason-3 and SARAL) are simultaneously assimilated into the global high-resolution ocean wave model and in return, led to significant model improvement. This study can also provide some implications for wave predictions in global oceans.
KeywordGlobal ocean wave model Data assimilation Significant wave height Satellite altimeter
DOI10.1016/j.jag.2018.03.012
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFC1402000] ; National Key Research and Development Program of China[2016YFC1401800] ; National Key Research and Development Program of China[2016YFC1401400] ; National Soft Science Research Program of China[ZLY2015140] ; National Natural Science Foundation of China[41430963] ; National Natural Science Foundation of China[41606005] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA11010204] ; Fundamental Research Funds for the Central Universities[3001000-841564014] ; Fundamental Research Funds for the Central Universities[3006000-841762015] ; Fundamental Research Funds for the Central Universities[201562030]
WOS Research AreaRemote Sensing
WOS SubjectRemote Sensing
WOS IDWOS:000434005000005
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/159403
Collection海洋环流与波动重点实验室
Corresponding AuthorYu, Huaming
Affiliation1.Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao 266100, Peoples R China
2.Ocean Univ China, Minist Educ, Key Lab Phys Oceanog, Qingdao 266003, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266100, Peoples R China
4.Ocean Univ China, Coll Fisheries, Qingdao 266003, Peoples R China
5.Ocean Univ China, Coll Engn, Qingdao 266100, Peoples R China
6.Chinese Acad Sci, Inst Oceanog, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
7.Univ Chinese Acad Sci, Beijing 100029, Peoples R China
8.Rykell Sci Editorial LLC, Los Angeles, CA USA
Recommended Citation
GB/T 7714
Yu, Huaming,Li, Jiangyu,Wu, Kejian,et al. A global high-resolution ocean wave model improved by assimilating the satellite altimeter significant wave height[J]. INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION,2018,70:43-50.
APA Yu, Huaming.,Li, Jiangyu.,Wu, Kejian.,Wang, Zhifeng.,Yu, Haiqing.,...&Kelly, Ryan M..(2018).A global high-resolution ocean wave model improved by assimilating the satellite altimeter significant wave height.INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION,70,43-50.
MLA Yu, Huaming,et al."A global high-resolution ocean wave model improved by assimilating the satellite altimeter significant wave height".INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION 70(2018):43-50.
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