Physics
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989p%26ss...37..649t&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 37, June 1989, p. 649-655.
Physics
24
Airglow, Equatorial Regions, F Region, Mesosphere, Atmospheric Circulation, Hydroxyl Radicals, Nightglow, Oxygen Spectra, Sodium
Scientific paper
Simultaneous ground-based measurements of the atmospheric airglow emissions O I 5577, 6300 and 7774 A, NaD 5893 A, OH (9, 4) band, and the O2 atmospheric (0, 1) band at 8645 A have been made at an equatorial station, the Fortaleza, Brazil, since November 1986. A microprocessor controlled multichannel tilting filter type photometer was constructed for this purpose. Hydroxyl rotational temperatures in the range 190-210 K were obtained from the OH (9, 4) Q and R branch measurements. Surprisingly low O I 5577 A and NaD intensities, about 40 percent and 25 percent, respectively, of those observed at low latitude, were observed. The OH (9, 4) band intensities, however, did not show any such difference. Time lagged nocturnal intensity variations of the mesospheric emissions observed provide evidence of dynamical effects in the equatorial upper atmosphere.
Clemesha Barclay R.
Sahai Yogeshwar
Simonich Dale M.
Takahashi Hiroyuki
Teixeira N. R.
No associations
LandOfFree
Equatorial mesospheric and F-region airglow emissions observed from latitude 4 deg south does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Equatorial mesospheric and F-region airglow emissions observed from latitude 4 deg south, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Equatorial mesospheric and F-region airglow emissions observed from latitude 4 deg south will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1856332