Articles tagged with: Peilai ZHOU

Nov 2010 | Comments Off on Numerical simulations of the optimal geodetic conditions with radioastron

For all the three pillars of space geodesy (the geometry of the Earth surface and its displacements, the orientation of the Earth axis and its rotation speed, and the Earth’s gravity field and its time variations), well-defined, highly accurate and stable global Earth-fixed and celestial reference frames are of primary importance. Over the last decade considerable changes took