MICRODENSITOMETRY/MICROPHOTOMETRY OF THE HIGH RESOLUTION SPECTRUM OF $NO_{2}$ 5327 {\AA} REGION
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Date
1979
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Ohio State University
Abstract
This preliminary work discusses the different microdensitometer/microphotometer (MDMP) measurement techniques for measuring the nitrogen dioxide spectrum. The spectral atlas of $NO_{2}: 5530 - 6480$ {\AA} measured on a manual MDMP is $available^{1}$. A recent survey for the $NO_{2}$ spectroscopic $requirements^{2}$ indicated there is interest in the 5327 {\AA} region. The fluorescence cross section measurement of this region could lead to a good experimental lidar design for detecting the $NO_{2}$ in the stratosphere. Using the automatic MDMP, the thorium standard and $NO_{2}$ lines are stored on magnetic tape. Through a three-step computer process, a listing of the observed vacuum wavenumbers is generated and a CALCOMP plotter is used to provide the MDMP traces. The difference of the MDMPs and recent work on the visible spectrum of $NO_{2}$ will be discussed.
Description
$^{1}$ D. K. Hsu, D. L. Monte and R. N. Zare, ""Spectral Atlas of Nitrogen Dioxide: $5530-6480 {\AA}'$, Academic Press, Inc, N. Y. N. Y, March 1978 $^{2}$ T. J. McGee and T. J. McIlrath, Univ. of Maryland, Tech. Note BW-860, June 1977
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