Analysis of Ocean Tide Loading in Differential InSAR Measurements
Analysis of Ocean Tide Loading in Differential InSAR Measurements
复制标题
差分InSAR测量中的海洋潮汐载荷分析
DOI:
10.3390/rs9020101
复制
发表时间:
2017-01
期刊:
影响因子:
5
通讯作者:
Cao Yunmeng
中科院分区:
文献类型:
--
作者:
Peng Wei;Wang Qijie;Cao Yunmeng
Ocean tide loading (OTL) causes crustal displacements in coastal regions, and the relative variation of these ground displacements may reach several centimeters across differential interferometric synthetic aperture radar (DInSAR) interferograms. However, orbit errors seriously affect the analysis of long-wavelength crustal deformation signals such as the OTL effect because of their similar signatures in DInSAR interferograms. To correct the orbit errors, we used a linear surface model to model the relative displacements of the Global Positioning System (GPS) precise point positioning (PPP) in the line of sight (LOS) direction as a priori parameter of the long-wavelength crustal deformation signals. After correcting the orbit errors, an ocean tide model was applied to correct the OTL effect in the DInSAR interferograms. The proposed approach was verified with the DInSAR interferograms from the Los Angeles basin. The experimental results confirm that the real orbit errors can be modeled by the bilinear ramp function under the constraint of the priori parameter. Moreover, after removing the orbit errors, the OTL effect, which is dominant in the long-wavelength crustal deformation signals, can be revealed, and then be effectively eliminated by the FES2004 tide model.
登录
查看更多内容
影响因子:
5.2
作者:
C. Allinson;P. Clarke;S. Edwards;Matt A. King;T. Baker;P. Cruddace
通讯作者:
C. Allinson;P. Clarke;S. Edwards;Matt A. King;T. Baker;P. Cruddace
影响因子:
4.4
作者:
I. Thomas;Matt A. King;P. Clarke
通讯作者:
I. Thomas;Matt A. King;P. Clarke
影响因子:
2.3
作者:
Lyard, Florent;Lefevre, Fabien;Francis, Olivier
通讯作者:
Francis, Olivier
影响因子:
4.4
作者:
Linguo Yuan;X. Ding;P. Zhong;Wu Chen;Ding-fa Huang
通讯作者:
Linguo Yuan;X. Ding;P. Zhong;Wu Chen;Ding-fa Huang
影响因子:
--
作者:
N. Penna;Matt A. King;M. Stewart
通讯作者:
N. Penna;Matt A. King;M. Stewart