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Water Vapor Radiometry at the Onsala Space Observatory from 1980 to 1987

Published online by Cambridge University Press:  03 August 2017

J. M. Johansson ,
G. Elgered  and
B. O. Rönnäng
J. M. Johansson
Affiliation:
Onsala Space Observatory, S-43900 Onsala, Sweden
G. Elgered
Affiliation:
Onsala Space Observatory, S-43900 Onsala, Sweden
B. O. Rönnäng
Affiliation:
Onsala Space Observatory, S-43900 Onsala, Sweden

Abstract

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Variations in atmospheric water vapor are difficult to correct for in geodetic, astrometric, and mm-wave astronomy VLBI. The use of a water vapor radiometer (WVR) has given promising results. The algorithm which relates the sky brightness temperatures observed by the WVR to the delay caused by atmopheric water vapor is discussed. Examples of WVR measurements made at the Onsala Space Observatory from 1980 to 1987 are presented.

Type
Instrumentation and Analysis
Information
Symposium - International Astronomical Union , Volume 129: The Impact of VLBI on Astrophysics and Geophysics , 1988 , pp. 547 - 548
Copyright
Copyright © Reidel 1988 

References

Elgered, G., Davis, J.L., Herring, T.A. and Shapiro, I.I., ‘The effect of the wet atmosphere on estimates of baseline lengths from VLBI,’ IAU Symposium No. 129, Cambridge, MA, 1987.CrossRefGoogle Scholar
Johansson, J.M., Elgered, G., Davis, J.L., ‘Geodesy by radio interferometry: Optimization of wet path delay algorithms using microwave radiometer data,’ Res. Rept. No. 152 , Onsala Space Observatory, Chalmers Univ. of Tech., 1987.Google Scholar
Saastamoinen, J., ‘Atmospheric correction for the troposphere and stratosphere in radio ranging of satellites,’ in The Use of Artificial Satellites for Geodesy, Geophys. Monogr. Ser., 15, ed. Henriksen, S.W. et al., pp. 247–251, American Geophysical Union, Washington, D.C., 1972.Google Scholar