Australian Antarctic middle and upper atmospheric physics — A new direction

Morris, R. J.; Monselesan, Didier; Klekociuk, Andrew

doi:10.1016/0273-1177(95)00184-g

Cited by 6 publications

(1 citation statement)

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“…In this paper we identify ®ne detail in the spectra, explore possible sources of uncertainty in the temperature analysis and present initial results from one year's data. The experiment is part of a suite of instruments, including a medium-frequency, spaced-antennae radar, airglow imager and photometers, at Davis, Antarctica 68X6 SY 78X0 E which together will be used in comprehensive middle-atmosphere studies (Morris et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

OH(6-2) spectra and rotational temperature measurements at Davis, Antarctica

et al. 1998

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Abstract. The OH(6±2) band was monitored during 1990 at Davis, Antarctica 68X6 S, 78.0 E using a CzernyTurner scanning spectrometer. Spectra obtained with a 0.15-nm bandwidth and wavelength steps of 0.005 nm have been recorded in an attempt to isolate auroral features. This has enabled detailed study of weak features in the region k837X5À 855X5 nm. These weak features can contribute to the apparent intensity of Pbranch lines and to the background. Their presence is allowed for in our calculation of rotational temperature, but the P 1 3 line is excluded because of signi®cant contamination. An average temperature of 221 AE 2 K is obtained from a selected data set of 104 spectra. The mid-winter average temperature, for the months of May, June and July, is 224 AE 2 K, which is consistent with the 1986 CIRA model values for mid-winter at this height and latitude, but this result is dependent on the choice of transition probabilities. Preliminary assessments of seasonal and diurnal variations in rotational temperature and intensity are presented.

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Section: Introductionmentioning

confidence: 99%