Physics
Scientific paper
Jun 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21.1153g&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 12, p. 1153-1156
Physics
13
Airglow, Atmospheric Temperature, Hydroxyl Radicals, Line Spectra, Mesosphere, Optical Measurement, Spectroscopic Analysis, Antarctic Regions, Estimating, Fabry-Perot Spectrometers, High Resolution, Temporal Distribution
Scientific paper
Over the 1992/1993 summer the Fabry-Perot spectrometer at Mawson, Antarctica (67.6 deg S, 62.9 deg E), was modified to permit observations of two lines in the OH (6-2) band near lambda 840 nm. Preliminary observations were obtained on 5 nights in early February. Analysis of these lines, permitting estimates of mesospheric winds and temperatures, will be presented. Lambda-doubling of OH (6-2) Q(sub 1) (2) and P(sub 1) (3) lines was measured to be 5.50 +/- 0.01 pm and 19.17 +/- 0.06 pm respectively. The results show that mesospheric temperatures can be obtained from Q(sub 1) (2) profiles even though the doublet is not full resolved. This emission is significantly more intense than the P(sub 1) (3) emission so its use will allow better resolution of temporal variations.
Dyson Peter L.
Greet Pene A.
Innis John
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