Applications of Very-Long-Baseline Interferometry to Geodesy and Geodynamics

Details Applications of Very-Long-Baseline Interferometry to Geodesy and Geodynamics Applications of Very-Long-Baseline Interferometry to Geodesy and Geodynamics

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977rspta.284..469a&link_type=abstract

Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, Volume 284, Issue 1326

Physics

Scientific paper

Very-long-baseline interferometry (v.l.b.i.) experiments can determine the separation between antennae many thousands of kilometres apart and can also determine the orientation of a baseline with respect to an extragalactic frame of reference. Shapiro et al. (1974) have used v.l.b.i. to determine the length of a 3900 km baseline with an accuracy of approximately 20 cm, and to estimate changes of universal time and the x component of polar motion which are in agreement with conventional optical determinations to within 3 ms and 1.3 m respectively. A significant improvement in accuracy is expected shortly. The technique and the limitations are reviewed.

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