Metrology of the Earth’s Rotation Over 1988–1997

Abstract

In this paper, we summarize the evolution concerning the Earth Orientation metrology over the first ten years of the IERS activity. This evolution is primarily highly linked to the techniques enhancement; secondly data analyses have improved, models of geophysical phenomena perturbing the earth orientation have been refined and smaller effects so far neglected are now taken into account. Precisions and temporal resolutions have increased in the quantities estimated. Finally electronic systems have developped more efficient means of data transmissions.