Improved Method for Estimating the Ocean Tide Loading Displacement Parameters by GNSS Precise Point Positioning and Harmonic Analysis

doi:10.1061/(ASCE)SU.1943-5428.0000222

NTSC-IR

	Improved Method for Estimating the Ocean Tide Loading Displacement Parameters by GNSS Precise Point Positioning and Harmonic Analysis
	Tu, Rui 1,2; Zhao, Hong 3; Zhang, Pengfei 1,2; Liu, Jinhai 1,2; Lu, Xiaochun 1,2
	2017-11-01
发表期刊	JOURNAL OF SURVEYING ENGINEERING
ISSN	0733-9453
卷号	143 期号:4 页码:9
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.
关键词	Global Navigation Satellite System (GNSS) Precise point positioning Harmonic analysis Ocean tide loading
资助者	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
DOI	10.1061/(ASCE)SU.1943-5428.0000222
关键词[WOS]	MULTI-GNSS ; GPS ; MODEL ; CONSTITUENTS ; VALIDATION ; FRANCE
语种	英语
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]
资助者	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
WOS研究方向	Engineering
WOS类目	Engineering, Civil
WOS记录号	WOS:000416492300002
出版者	ASCE-AMER SOC CIVIL ENGINEERS
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/11523
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.