Observations of airglow O2 (1 sigma) atmospheric band at 8645A and the rotational temperature at 23 S

Details Observations of airglow O2 (1 sigma) atmospheric band at 8645A and the rotational temperature at 23 S Observations of airglow O2 (1 sigma) atmospheric band at 8645A and the rotational temperature at 23 S

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985asom.proc...39t&link_type=abstract

In Stockholm Univ. Proceedings of 12th Annual Meeting on Atmospheric Studies by Optical Methods p 39-50 (SEE N86-22027 12-46)

Physics

Airglow, Argon, Infrared Radiation, Oxygen Spectra, Annual Variations, Nocturnal Variations, Temperature Distribution

Scientific paper

Observations of the O2 (1 Sigma, 0-1) atmospheric band at 8645A (O2A) and the rotational temperature, with the OH(9,4) band and OI 5577A airglow emissions, using multichannel tilting filter type photometers, were carried out at Cachoeira Paulista (22.7 S, 45.0 W) Brazil. The O2A band intensities occasionally vary from 200 to 1000 Rayleighs during a night. Covariations in nocturnal and seasonal variation with the OI 5577A emissions are observed. The rotational temperatures determined from the P branch of the O2 (1 Sigma) vary between 180 and 230 K. The amplitude of the nocturnal temperature variation is frequently larger than that determined from the OH emission, and the phase of the variation can lead that of the OH.

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