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Experiences from IDM measurements at the test base of the Geodetic Institute of Uppsala University

Published online by Cambridge University Press:  14 August 2015

S-G. Mårtensson
S-G. Mårtensson*
Affiliation:
Geodetic Institute Uppsala, Sweden

Abstract

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IDM measurements carried out in Uppsala sometimes show violent changes in refraction over short periods of time.

The explanation for these changes might be found if the dynamics of atmospheric turbulence is taken into consideration.

It is too early to make scientific conclusions from the material collected so far, but observations show the way this particular problem can be handled in the future.

The paper presented, reflects some of the turbulence effects achieved by the IDM instrument constructed by prof. E. Tengström.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 89: Refractional Influences in Astrometry Andgeodesy , 1979 , pp. 241 - 247
Copyright
Copyright © Reidel 1979 

References

Dietze, G.: 1957, Einführung in die Optik der Atmosphäre, Leipzig.Google Scholar
Tengström, E.: 1974, “Report on the results of the IDM experiments at Uppsala 1970 and at the Finnish base of Niinisalo 1971”, Proc. of the symposium EDM and Refraction, Stockholm, Sweden.Google Scholar
Tengström, E.: 1977, “Some absolute tests of the results of IDM measurements in the field with a description of formulas used in the tests”, Proc. of IAG symposium, Wageningen, The Netherlands.Google Scholar