The Feasibility of Replacing Precise Levelling with GPS for Permafrost Deformation Monitoring

This paper describes experiments to determine the best field and processing strategies that can be employed in carrier-phase differential GPS levelling in the permafrost Arctic region of Canada (70 ° north). Errors in phase-centre correction and multipath effects are examined in common with other st...

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Bibliographic Details
Main Authors: Matthew Tait, Li Sheng, Elizabeth Cannon, Matthew Tait Li Sheng
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Key words
GPS levelling
Arctic environment
satellite geometry
path delays
error analysis
Arctic
Canada
Tait
permafrost
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.531.8863
Description
Summary:This paper describes experiments to determine the best field and processing strategies that can be employed in carrier-phase differential GPS levelling in the permafrost Arctic region of Canada (70 ° north). Errors in phase-centre correction and multipath effects are examined in common with other studies in engineering measurement applications. In addition, the balance between residual noise and poor geometry in this high latitude is investigated in periods of both high and low ionospheric activity. An external accuracy assessment is made of the results. Recommended field and processing strategies for DGPS levelling in Arctic Canada are given. TS6 – GPS Measurement and Application Matthew Tait, Li Sheng, and Elizabeth Cannon

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