Improvement of instantaneous positioning by spatial stacking and modified sidereal filtering methods with application to the 2008 Ms8.0 Wenchuan earthquake

Improvement of instantaneous positioning by spatial stacking and modified sidereal filtering methods with application to the 2008 Ms8.0 Wenchuan earthquake

We obtained several displacement time series from the Sichuan permanent GPS net and processed the 1-Hz data observed during a few days before the 2008 Ms8.0 Wenchuan earthquake by double-difference instantaneous positioning technique. We filtered the data by the spatial stacking and the modified sid...

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Bibliographic Details
Main Authors: Liu Gang, Li Gang, Tan Kai, Nie Zhaosheng, Zhou Yu, Jia Zhige
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2012-02-01
Series:Geodesy and Geodynamics
Subjects:
1-Hz GPS
spatial stacking
modified sidereal filtering
Ms8.0 Wenchuan earthquake
deformation
Online Access:http://www.sciencedirect.com/science/article/pii/S1674984715301038
Description
Summary:We obtained several displacement time series from the Sichuan permanent GPS net and processed the 1-Hz data observed during a few days before the 2008 Ms8.0 Wenchuan earthquake by double-difference instantaneous positioning technique. We filtered the data by the spatial stacking and the modified sidereal filtering methods to reduce correlation bias in space and time. The results indicate that these methods can improve the precision significantly.
ISSN:1674-9847

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