"In fact, it can be shown that the refraction near the horizon depends mostly on the local temperature gradient, which is much more important than the local temperature itself. For this reason, all the refraction phenomena near the horizon — mirages, dip, terrestrial refraction, etc., as well as the astronomical refraction — are very sensitive to the temperature gradient; and they all vary a great deal more than does the astronomical refraction well up in the sky."
To: "It is obvious that the effect of temperature variation is decisive over the
other atmospheric factors on refraction, to the following proportions: Temperature to humidity to carbon dioxide content to air pressure = 100 : 6 : 2 : 1 "
INVESTIGATION OF REFRACTION
IN THE LOW ATMOSPHERE
By
K. HORV_,.TH
Department of Survey. Technical university. Budapest
(Received Alay 29, 1969)
Presented by Ass. Prof. Dr. F. SAHKOZY
