GPS Solutions

, Volume 15, Issue 3, pp 299–303 | Cite as

iGPS: IDL tool package for GPS position time series analysis

GPS Toolbox
First Online:

Abstract

A new tool package written in Interactive Data Language (IDL) was developed for processing and analyzing daily continuous GPS position time series. This software package can read continuous GPS position time series in various formats, detect outliers, remove abnormal observation spans, locate epochs of offsets or post-seismic relaxation events, and estimate their amplitudes. It also provides functionalities for epoch statistics, site selection, periodic noise analysis, spatial filtering (by regional stacking), etc. This tool is referred to as iGPS.

Keywords

GPS Position time series Offsets Post-seismic relaxation Common-mode errors Interactive Data Language 
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Notes

Acknowledgments

I am grateful to LM Jiang at the School of Geography and Remote Sensing, Beijing Normal University for her valuable suggestions. I would like to thank ZK Shen, M Wang and P Li at Institute of Geology, China Earthquake Administration for their helpful instructions and discussions, which have greatly improved my understanding of GPS. I also thank the anonymous reviewers for their insightful comments, which significantly improved the quality of this manuscript. Some programs (e.g. date conversions) were rewritten from the FORTRAN 77 source files in GAMIT/GLOBK distribution. Permission has been obtained to use them in iGPS. This work was jointly supported by Institute of Crustal Dynamics Fund (ZDJ2010-17) and National High Technology Research and Development Program of China (2008AA12Z110).

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  1. 1.State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake AdministrationBeijingChina
  2. 2.Institute of Crustal Dynamics, China Earthquake AdministrationBeijingChina

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