High‐resolution Fabry‐Perot Observations of mesospheric OH (6‐2) emissions | Zendy

P. A. Greet | Zendy; J. Innis | Zendy; P. L. Dyson | Zendy

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High‐resolution Fabry‐Perot Observations of mesospheric OH (6‐2) emissions

Author(s) -

P. A. Greet,

J. Innis,

P. L. Dyson

Publication year - 1994

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/94gl00894

Subject(s) - fabry–pérot interferometer , spectrometer , emission spectrum , mesosphere , airglow , lambda , resolution (logic) , atmospheric sciences , spectral line , physics , environmental science , spectral resolution , astrophysics , optics , astronomy , stratosphere , wavelength , artificial intelligence , computer science

Over the 1992/93 summer the Fabry‐Perot spectrometer at Mawson, Antarctica (67.6°S, 62.9°E), was modified to permit observations of two lines in the OH (6–2) band near λ 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 1 (2) and P 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 1 (2) profiles even though the doublet is not fully resolved. This emission is significantly more intense than the P 1 (3) emission so its use will allow better resolution of temporal variations.

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