Improved Method for Estimating the Ocean Tide Loading Displacement Parameters by GNSS Precise Point Positioning and Harmonic Analysis
文献类型：期刊论文
| 作者 | Tu, Rui1,2; Zhao, Hong3; Zhang, Pengfei1,2; Liu, Jinhai1,2; Lu, Xiaochun1,2 |
| 刊名 | JOURNAL OF SURVEYING ENGINEERING
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 143期号:4页码:9 |
| 关键词 | Global Navigation Satellite System (GNSS) Precise point positioning Harmonic analysis Ocean tide loading |
| ISSN号 | 0733-9453 |
| DOI | 10.1061/(ASCE)SU.1943-5428.0000222 |
| 英文摘要 | Site displacements caused by ocean tide loading (OTL) can reach more than several centimeters vertically, particularly in coastal regions. An ocean tide model typically is used to correct OTL effects, but these model predictions cannot satisfy accuracy requirements because of irregularities. The Global Navigation Satellite System(GNSS) is influenced by OTL and provides a way to measure OTL displacements precisely. This study develops an improved method for estimating OTL-displacement parameters in which the effects of three-dimensional (3D) OTL displacements are estimated as unknown parameters at each epoch by precise point positioning (PPP); then, the amplitudes and phase lags of eight principal constituents are extracted from the time series of the OTL displacements using the harmonic analysis method. 3D OTL displacements of eight constituents at 12 sites in Hong Kong with 8 years of continuous GNSS observations are calculated. The convergence speed of these constituents indicates that the O1, Q1, N2, and M2 constituents are much faster than the K1, P1, K2, and S2 constituents. In addition, the PPP-derived OTL estimates are compared with the predictions from six advanced global ocean tide models, which were modified by the osu.chinasea. 2010 local tide model. The results show that the constituents estimated by the improved method are most consistent with the model-predicted values. RMS misfits between the PPP model are small for the N2, M2, Q1, and P1 constituents (less than 1.5 mm in the east component, 2.0 mm in the north component, and 1.9 mm in the vertical component). The S2 and K1 constituents show relatively large misfits of up to 4.3 mm. (C) 2017 American Society of Civil Engineers. |
| WOS关键词 | MULTI-GNSS ; GPS ; MODEL ; CONSTITUENTS ; VALIDATION ; FRANCE |
| 资助项目 | program of National Key Research and Development Plan of China[2016YFB0501804] ; National Natural Science Foundation of China[41504006] ; National Natural Science Foundation of China[41674034] ; Chinese Academy of Sciences (CAS) program of Pioneer Hundred Talents ; Chinese Academy of Sciences (CAS) program of Frontier Science Research Project[QYZDB-SSW-DQC028] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000416492300002 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 资助机构 | program of National Key Research and Development Plan of China ; program of National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) program of Pioneer Hundred Talents ; Chinese Academy of Sciences (CAS) program of Pioneer Hundred Talents ; Chinese Academy of Sciences (CAS) program of Frontier Science Research Project ; Chinese Academy of Sciences (CAS) program of Frontier Science Research Project ; program of National Key Research and Development Plan of China ; program of National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) program of Pioneer Hundred Talents ; Chinese Academy of Sciences (CAS) program of Pioneer Hundred Talents ; Chinese Academy of Sciences (CAS) program of Frontier Science Research Project ; Chinese Academy of Sciences (CAS) program of Frontier Science Research Project ; program of National Key Research and Development Plan of China ; program of National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) program of Pioneer Hundred Talents ; Chinese Academy of Sciences (CAS) program of Pioneer Hundred Talents ; Chinese Academy of Sciences (CAS) program of Frontier Science Research Project ; Chinese Academy of Sciences (CAS) program of Frontier Science Research Project ; program of National Key Research and Development Plan of China ; program of National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) program of Pioneer Hundred Talents ; Chinese Academy of Sciences (CAS) program of Pioneer Hundred Talents ; Chinese Academy of Sciences (CAS) program of Frontier Science Research Project ; Chinese Academy of Sciences (CAS) program of Frontier Science Research Project |
| 源URL | [http://210.72.145.45/handle/361003/11522]  |
| 专题 | 中国科学院国家授时中心 |
| 通讯作者 | Tu, Rui |
| 作者单位 | 1.Chinese Acad Sci, Natl Time Serv Ctr, Lin Tong 710600, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Natl Adm Survey Mapping & Geoinformat, Ctr Geodet Data Proc, Xian 710054, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tu, Rui,Zhao, Hong,Zhang, Pengfei,et al. Improved Method for Estimating the Ocean Tide Loading Displacement Parameters by GNSS Precise Point Positioning and Harmonic Analysis[J]. JOURNAL OF SURVEYING ENGINEERING,2017,143(4):9. |
| APA | Tu, Rui,Zhao, Hong,Zhang, Pengfei,Liu, Jinhai,&Lu, Xiaochun.(2017).Improved Method for Estimating the Ocean Tide Loading Displacement Parameters by GNSS Precise Point Positioning and Harmonic Analysis.JOURNAL OF SURVEYING ENGINEERING,143(4),9. |
| MLA | Tu, Rui,et al."Improved Method for Estimating the Ocean Tide Loading Displacement Parameters by GNSS Precise Point Positioning and Harmonic Analysis".JOURNAL OF SURVEYING ENGINEERING 143.4(2017):9. |
入库方式： OAI收割
来源：国家授时中心
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