Computer Science
Scientific paper
Jan 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999adspr..23..665z&link_type=abstract
Advances in Space Research, Volume 23, Issue 4, p. 665-665.
Computer Science
Scientific paper
Geodetic networks belong still to the most important tools of applied geodesy, surveying and mapping. Required accuracy is of the order of millimetres and the vertical component is of particular importance for geodynamics and sea level change research. In combination with classical levelling the network offers excellent information about the shape of the geoid. Modern geodetic networks are established almost exclusively with GPS. In the solution of the network the orbital data is used provided by the IGS service and by regional analysing centres like CODE. In the paper authors discuss the quality of GPS orbits published by different sources and analyse the differences in solution caused by differences in orbital elements. It is proved that in some cases the longitudinal deformation or the tilt of the network is caused by orbital errors but in general the solution is not very sensitive if the error is in the range of two decimetres.
Zdunek R.
Zielinski Janusz B.
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