Daytime observation of the sodium layer with a Fabry-Perot spectrometer at Mawson, Antarctica

Details Daytime observation of the sodium layer with a Fabry-Perot spectrometer at Mawson, Antarctica Daytime observation of the sodium layer with a Fabry-Perot spectrometer at Mawson, Antarctica

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16..871g&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 16, Aug. 1989, p. 871-874. Research supported by the Antarctic Science Advis

Physics

9

Antarctic Regions, Atmospheric Composition, Daytime, Fabry-Perot Spectrometers, Sodium Vapor, Doppler Effect, Line Spectra, Upper Atmosphere

Scientific paper

The first ground-based measurements of temperature in the sodium layer at about 90 km altitude in the Antarctic have been made at Mawson; a mean value of 153 + or - 7 K for January 1989 was obtained. A dual scanning Fabry-Perot spectrometer was used to record the D2 spectral line resonantly scattered from sunlight; the Doppler width and shift of the line measures the kinetic temperature and wind velocity in the emitting region.

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