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Journal Articles Journal of Geophysical Research Year : 1961

The dayglow of the sodium D lines

Abstract

Observation of the sodium dayglow in the scattered sunlight observed on the surface of the earth with a magnetic scanning photometer is reported. The intensity (September to November 1960) is unexpectedly strong—30 kilorayleighs toward the zenith—and evidence is that during the period studied the amount of sodium is 4 times as large in the daytime as at twilight. However, a strong correlation is found between the dayglow and twilight intensities. The abundance can be as high as 40×109 atoms/cm2. The possible role of water vapor absorption in the results is discussed.
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insu-03633217 , version 1 (07-04-2022)

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Jacques-Emile Blamont, T. M. Donahue. The dayglow of the sodium D lines. Journal of Geophysical Research, 1961, 66 (5), pp.1407-1423. ⟨10.1029/JZ066i005p01407⟩. ⟨insu-03633217⟩
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