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Altitude and temperature of the mesopause at 69 N latitude in winter

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Neuber, R. , von der Gathen, P. and von Zahn, U. (1988): Altitude and temperature of the mesopause at 69 N latitude in winter , Journal of Geophysical ResearchD9), 93 , pp. 11093-11101 .
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Abstract:

Temperature profiles of the altitude region 80-110 km are derived from the measurement of the Doppler width of the laser-excited D2 resonance line of free sodium atoms. For the altitude range 85-95 km the altitude resolution, integration time, and error bar of individual temperature points are typically 1 km, 10 min, and ±5 K, respectively. Temperature data obtained during the two winter seasons 1985/1986 and 1986/1987 near Andenes, Norway (69oN, 16oE), are presented. For December-March, 743 temperature profiles are combined into four monthly mean profiles. For each of the 4 months the altitude of the mesopause is found to be 100 ± 2 km. The mesopause temperature is close to 193 K from December through February but drops to 170 K in March.

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16474
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