Absolute wind velocities in the lower thermosphere of Venus using infrared heterodyne spectroscopy

Absolute wind velocities in the thermosphere of Venus were retrieved using NASA/Goddard Space Flight Center infrared heterodyne spectrometers at the NASA Infrared Telescope Facility (IRTF) and the McMath Solar Telescope, December 1985 to March 1987. Measurement of beam-integrated Doppler shifts in t...

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Veröffentlicht in:	Icarus (New York, N.Y. 1962) N.Y. 1962), 1991-11, Vol.94 (1), p.45-63
Hauptverfasser:	Goldstein, Jeffrey J., Mumma, Michael J., Kostiuk, Theodor, Deming, Drake, Espenak, Fred, Zipoy, David
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Earth, ocean, space Exact sciences and technology Lunar And Planetary Exploration Planets, their satellites and rings. Asteroids Solar system Venus
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Zusammenfassung:	Absolute wind velocities in the thermosphere of Venus were retrieved using NASA/Goddard Space Flight Center infrared heterodyne spectrometers at the NASA Infrared Telescope Facility (IRTF) and the McMath Solar Telescope, December 1985 to March 1987. Measurement of beam-integrated Doppler shifts in the nonthermal emission core of the 12C 16O 2 10.33-μm R(8) line provided sampling of the lower thermospheric wind field (100–120 km) projected along the line of sight. The spectrometer's 1–2 arc-sec diffraction-limited beam yielded the spatial resolution necessary for circulation model discrimination. Saturated resonance (Lamb dip) stabilization of the reference CO 2 laser local oscillator provided continuous absolute frequency calibration of the spectrometer to
ISSN:	0019-1035 1090-2643
DOI:	10.1016/0019-1035(91)90140-O