Analysis of landslide monitoring using an e-GPS system and multi-antenna GPS technology

T. K. Yeh, Y. S. Hu, Y. A. Liou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations


Based on GPS technology, this study monitored the movement of the landslide that impacted Taiwan's Formosa Freeway. Two monitoring systems and two data-processing software programs were employed. Auxiliary data were obtained from the GPS, raingauges, inclinometers, and water table meters for landslide analysis. The goal of multi-sensor monitoring was to construct an automatic early warning system for driver safety. Analytical results indicate that the landslide moved on average 1 cm/month in the southeast direction; that is, it moved slowly toward the Formosa Freeway, thereby posing a potential safety hazard for drivers. The positioning precision of the multi-antenna GPS (0.18, 0.25, and 0.57 cm in the north, east and vertical directions, respectively) was better than that of static relative positioning (0.29, 0.44 and 1.01 cm) and that of e-GPS technology (1.69, 1.35 and 2.45 cm).

Original languageEnglish
Title of host publicationLand Subsidence, Associated Hazards and the Role of Natural Resources Development
Number of pages3
StatePublished - 2010
Event8th International Symposium on Land Subsidence, EISOLS - Santiago de Queretaro, Mexico
Duration: 17 Oct 201022 Oct 2010

Publication series

NameIAHS-AISH Publication
ISSN (Print)0144-7815


Conference8th International Symposium on Land Subsidence, EISOLS
CitySantiago de Queretaro


  • GPS
  • Landslide
  • Multi-antenna GPS
  • Taiwan


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