Astronomy and Astrophysics – Astronomy
Scientific paper
May 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ivsg.conf..269h&link_type=abstract
International VLBI Service for Geodesy and Astrometry 2000 General Meeting Proceedings, edited by Nancy R. Vandenberg and Karen
Astronomy and Astrophysics
Astronomy
Scientific paper
We compare estimates of zenith wet delay and horizontal delay gradients from 54 days of simultaneous observations with independent collocated space geodetic and remote sensing techniques at the Onsala Space Observatory. The impact of the choice of the constraints for the atmospheric parameters used in the analysis of the space geodetic data on the comparison with water vapour radiometer results is studied. We find estimated weighted RMS differences below the 10 millimetre level and correlation coefficients between 0.73 and 0.87 for the zenith wet delays derived from the different techniques while the agreement for the estimated horizontal delay gradients is less clear.
Elgered Gunnar
Gradinarsky Lubomir P.
Haas Rüdiger
Johansson Jan M.
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