Accession Number : AD0695609

Title :   INTERFEROMETRIC SPECTRA OF THE EARTH'S AIRGLOW (1.2 TO 1.6 MICROMETERS),

Corporate Author : CANADIAN ARMAMENT RESEARCH AND DEVELOPMENT ESTABLISHMENT QUEBEC

Personal Author(s) : Lowe,R. P.

Report Date : 1969

Pagination or Media Count : 8

Abstract : The principal emission in the Earth's airglow at wavelengths between 1 and 2 micrometers is the delta v = 2 sequence of the hydroxyl vibration-rotation bands. The hydroxyl emission, whose bands extend from the visible region to 4 micrometers, is present in both the day and night airglow and is probably produced by the chemiluminescent reaction between atomic hydrogen and ozone. The application of the multiplex Fourier spectroscopy to the study of this region of the spectrum has increased the resolving power attainable by nearly an order of magnitude, making possible the resolution of the rotational structure of the bands and allowing more precise determination of the rotational temperature. The interferometer used in this work incorporates a reference interferometer using the mercury line at 5461 A to provide a precise measure of path difference which is varied continuously at the rate of four mercury green line fringes per second. (Author)

Descriptors :   (*AIRGLOW, INFRARED SPECTRA), INTERFEROMETERS, MOLECULAR SPECTROSCOPY, CANADA

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE