Physics – Optics
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apopt..30.1210t&link_type=abstract
Applied Optics (ISSN 0003-6935), vol. 30, April 1, 1991, p. 1210-1220. Research supported by INSU, CNES, and CNRS.
Physics
Optics
22
Atmospheric Temperature, Michelson Interferometers, Planetary Atmospheres, Temperature Measurement, Wind Measurement, Field Of View, Hydroxyl Emission, Mesosphere, Nightglow, Oxygen Atoms, Upper Atmosphere
Scientific paper
Nightglow emissions generated by atomic oxygen and the OH radical are presently measured by the Michelson Interferometer for Coordinated Auroral Doppler Observations (MICADO) in order to ascertain the wind and temperature of the earth's upper atmosphere. Emission-line measurements of about 30-R intensity are obtainable in virtue of MICADO's use of field compensation for large geometric etendu. Measurement accuracy is estimated to be about 10 K for mesospheric temperature and 7 m/sec for winds in ordinary conditions. Analyses of the data show that the thermally-stabilized field-compensated Michelson instrument, in association with a Fourier analysis, furnishes wind measurements with far less difficulty than temperature measurements.
Hersé Michel
Thuillier Gerard
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