Document Type

Article

Publication Date

3-1990

Digital Object Identifier (DOI)

https://doi.org/10.1029/GL017i003p00211

Abstract

The CASA UNO GPS (Global Positioning System) experiment (January-February 1988) has provided the first epoch baseline measurements for the study of plate motions and crustal deformation in and around the North Andes. Two dimensional horizontal baseline repeatabilities are as good as 5 parts in 108 for short baselines (100–1000 km), and better than 3 parts in 108 for long baselines (>1000 km). Vertical repeatabilities are typically 4–6 cm, with a weak dependence on baseline length. The expected rate of plate convergence across the Colombia Trench is 6–8 cm/yr, which should be detectable by the repeat experiment planned for 1991. Expected deformation rates within the North Andes are of the order of 1 cm/yr, which may be detectable with the 1991 experiment.

Was this content written or created while at USF?

No

Citation / Publisher Attribution

Geophysical Research Letters, v. 17, issue 3, p. 211-214

Copyright 1990 by the American Geophysical Union.

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