scholarly journals Contemporary horizontal crustal movement estimation for northwestern Vietnam inferred from repeated GPS measurements

2013 ◽  
Vol 65 (12) ◽  
pp. 1399-1410 ◽  
Author(s):  
Nguyen Anh Duong ◽  
Takeshi Sagiya ◽  
Fumiaki Kimata ◽  
Tran Dinh To ◽  
Vy Quoc Hai ◽  
...  
Keyword(s):  
Crustal Movement ◽  
Gps Measurements ◽  
Horizontal Crustal Movement

scholarly journals Crustal movement of Antarctica and Syowa Station based on GPS measurements

2006 ◽  
Vol 58 (7) ◽  
pp. 795-804 ◽  
Author(s):  
Mako Ohzono ◽  
Takao Tabei ◽  
Koichiro Doi ◽  
Kazuo Shibuya ◽  
Takeshi Sagiya
Keyword(s):  
Crustal Movement ◽  
Gps Measurements ◽  
Syowa Station

scholarly journals Multi-quadric collocation model of horizontal crustal movement

2015 ◽  
Vol 7 (4) ◽  
pp. 3359-3382
Author(s):  
G. Chen ◽  
A. M. Zeng ◽  
F. Ming ◽  
Y. F. Jing
Keyword(s):  
Velocity Field ◽  
Kernel Function ◽  
Covariance Function ◽  
Estimation Method ◽  
Crustal Movement ◽  
Movement Velocity ◽  
Euler Vector ◽  
Combined Estimation ◽  
Horizontal Crustal Movement ◽  
Fitting Model

Abstract. To establish the horizontal crustal movement velocity field of the Chinese mainland, a Hardy multi-quadric fitting model and collocation are usually used, but the kernel function, nodes, and smoothing factor are difficult to determine in the Hardy function interpolation, and in the collocation model the covariance function of the stochastic signal must be carefully constructed. In this paper, a new combined estimation method for establishing the velocity field, based on collocation and multi-quadric equation interpolation, is presented. The crustal movement estimation simultaneously takes into consideration an Euler vector as the crustal movement trend and the local distortions as the stochastic signals, and a kernel function of the multi-quadric fitting model substitutes for the covariance function of collocation. The velocities of a set of 1070 reference stations were obtained from the Crustal Movement Observation Network of China (CMONOC), and the corresponding velocity field established using the new combined estimation method. A total of 85 reference stations were used as check points, and the precision in the north and east directions was 1.25 and 0.80 mm yr−1, respectively. The result obtained by the new method corresponds with the collocation method and multi-quadric interpolation without requiring the covariance equation for the signals.

Characteristics of horizontal crustal movement in Weihe basin and adjacent zones by GPS observation

2004 ◽  
Vol 17 (3) ◽  
pp. 282-286 ◽  
Author(s):  
Wang-qiang Dai ◽  
Jun Ren ◽  
Xiao-mao Zhao ◽  
Hui-cheng Shao ◽  
Gui-zhi Zhu
Keyword(s):  
Crustal Movement ◽  
Horizontal Crustal Movement ◽  
Weihe Basin ◽  
Gps Observation

General characteristics of the recent horizontal crustal movement in Chinese mainland

2001 ◽  
Vol 14 (4) ◽  
pp. 384-393 ◽  
Author(s):  
Guo-hua Gu ◽  
Xu-hui Shen ◽  
Min Wang ◽  
Gui-ming Zheng ◽  
Ying Fang ◽  
...  
Keyword(s):  
Chinese Mainland ◽  
Crustal Movement ◽  
Horizontal Crustal Movement

scholarly journals Multi-quadric collocation model of horizontal crustal movement

Solid Earth ◽  
2016 ◽  
Vol 7 (3) ◽  
pp. 817-825
Author(s):  
Gang Chen ◽  
Anmin Zeng ◽  
Feng Ming ◽  
Yifan Jing
Keyword(s):  
Velocity Field ◽  
Kernel Function ◽  
Covariance Function ◽  
Estimation Method ◽  
Crustal Movement ◽  
Movement Velocity ◽  
Euler Vector ◽  
Combined Estimation ◽  
Horizontal Crustal Movement ◽  
Fitting Model

Abstract. To establish the horizontal crustal movement velocity field of the Chinese mainland, a Hardy multi-quadric fitting model and collocation are usually used. However, the kernel function, nodes, and smoothing factor are difficult to determine in the Hardy function interpolation. Furthermore, the covariance function of the stochastic signal must be carefully constructed in the collocation model, which is not trivial. In this paper, a new combined estimation method for establishing the velocity field, based on collocation and multi-quadric equation interpolation, is presented. The crustal movement estimation simultaneously takes into consideration an Euler vector as the crustal movement trend and the local distortions as the stochastic signals, and a kernel function of the multi-quadric fitting model substitutes for the covariance function of collocation. The velocities of a set of 1070 reference stations were obtained from the Crustal Movement Observation Network of China, and the corresponding velocity field was established using the new combined estimation method. A total of 85 reference stations were used as checkpoints, and the precision in the north and east component was 1.25 and 0.80 mm yr−1, respectively. The result obtained by the new method corresponds with the collocation method and multi-quadric interpolation without requiring the covariance equation for the signals.

Horizontal crustal movement in Chinese mainland from 1999 to 2001

2004 ◽  
Vol 17 (S1) ◽  
pp. 52-60 ◽  
Author(s):  
Guo-hua Gu ◽  
Yang Fu ◽  
Wu-xing Wang
Keyword(s):  
Chinese Mainland ◽  
Crustal Movement ◽  
Horizontal Crustal Movement
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