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Bear Lake Observatory

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Zenithal nightglow measurements obtained by the Temperature Mapper are compared with coincident broad-band data obtained by the all-sky imager. These measurements were made under near-new-moon conditions on 21/22 March, 1996, when little or no short-period wave activity was detected. The relative intensity of the P1(2) line with the background removed is presented as a time series (with 1-min samples every ~4 min) in panel (b). To minimize the influence of stars on the data trends, 3 x 3 averaging about the zenith pixel has been employed. The corresponding relative intensity of the broad-band OH measurements are plotted in panel (a) while panel (c), shows the OH (6,2) rotational temperatures derived from the intensity ratio P1(4)/P1(2).


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