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    Spectroscopic observations of the night airglow from 3000 Å to 9200 Å.

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    Author
    Johnston, Jeffrey Eric.
    Issue Date
    1992
    Keywords
    Dissertations, Academic.
    Atmospheric physics.
    Advisor
    Broadfoot, A. Lyle
    
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    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    Spectroscopic measurements of the night airglow were taken at mid latitude over a period of four months. The use of intensified CCD spectrographs allowed simultaneous data to be taken from 3000Å to 9200Å in 3300 contiguous spectral elements with a resolution (full width at half max.) of 6Å to 15Å. The average intensities for a 6.5 hour integration period on March 16, 1991 of the O₂ Herzberg I, Chamberlain, Herzberg II, and Atmospheric (0-1) emissions were 230 ± 20 R, 80 ± 10 R, 80 ± 40 R, and 350 ± 20 R respectively. For the OH Meinel (9-4), (8-3), (7-2), (7-3), (6-2), (5-1), (4-0) emissions the intensities were 450 ± 50 R, 450 ± 20 R, 90 ± 20 R, 1620 ± 200 R, 970 ± 50 R, 680 ± 15 R, and 190 ± 20 R respectively. The OI 5577Å and 6300Å emissions were 320 ± 10 R and 160 ± 10 R respectively. These simultaneous emission intensities were compared with an atmospheric model which revealed that the O₂(A³Σ, A'³Δ, c¹Σ, b¹Σ) states and the OH(X²Π) state were heavily quenched. Analysis of the vibrational distributions of the O₂(A³Σ, A'³Δ, c¹Σ) states and the OH(X²Π) state, and dynamic intensity fluctuations of their related emission features provided independent confirmation of the conclusion that the O₂(A³ Σ, A'³Δ, c¹Σ) states and the OH(X²Π) state were heavily quenched.
    Type
    text
    Dissertation-Reproduction (electronic)
    Degree Name
    Ph.D.
    Degree Level
    doctoral
    Degree Program
    Physics
    Graduate College
    Degree Grantor
    University of Arizona
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    Dissertations

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