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Some Refraction Measurements at Low Altitudes

Published online by Cambridge University Press:  18 January 2010

A. Thom
A. Thom
Affiliation:
(Professor of Engineering Science, Oxford University)
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It may be interesting to report some measurements of refraction which Professor A. N. Black and I made this winter. These were made on the setting Sun, and as the altitude of the observing station was 480.0 ft. it was possible to carry the observations down to the horizontal and, in fact, under clear conditions, to −20′.

Type
Forum
Information
The Journal of Navigation , Volume 7 , Issue 3 , July 1954 , pp. 301 - 304
Copyright
Copyright © The Royal Institute of Navigation 1954