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  4. Estimation of time variations of astronomical and geodetic parameters of the Earth

Estimation of time variations of astronomical and geodetic parameters of the Earth

ISTCGCAP.
2007;
Volume 69, Number 69
: pp. 53 – 59
Authors:
  1. N.P. Yarema
1
Lviv Polytechnic National University

The paper is devoted to the modelling of the Earth’s fundamental parameters using recent geodetic  and astronomical data in time. The analysis of modern determinations of fundamental parameters of geodesy, astronomy, and geodynamics have led to the development of new closed expressions and the corresponding approach of their adjustment. The secular variations of basic astrogeodetic parameters were estimated.

Earth’s fundamental parameters
mean gravity potential
secular variations
geopotential model
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