Open AccessI. Transmission of sunlight through the earth’s atmosphere. Part II. Scattering at different altitudes
Author(s) -
W. de W. Abney
Publication year - 1892
Publication title -
proceedings of the royal society of london
Language(s) - English
Resource type - Journals
eISSN - 2053-9126
pISSN - 0370-1662
DOI - 10.1098/rspl.1892.0026
Subject(s) - sunlight , atmosphere (unit) , intensity (physics) , environmental science , sea level , atmospheric sciences , transmission (telecommunications) , meteorology , earth (classical element) , remote sensing , optics , geology , geography , physical geography , physics , astronomy , engineering , telecommunications
In this paper the results of observations made by exposing platino-type paper are recorded, and it is shown that the total intensity of light as thus registered is the same as if observations had been made on a ray of λ 4240 alone. The observations were made at altitudes varying from sea-level to 12,000 feet, in different countries, at different times of the year, and during four to five years. The instrument in which the exposures were made is described, as also the method of deriving the intensity of light from the developed prints.
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