Physics
Scientific paper
Apr 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jatp...39..481s&link_type=abstract
Journal of Atmospheric and Terrestrial Physics, vol. 39, Apr. 1977, p. 481-486. Research supported by the Department of Space o
Physics
1
Annual Variations, Atmospheric Ionization, F Region, Ion Production Rates, Sunspots, Tropical Regions, Diurnal Variations, Harmonic Analysis, India, North America, Oxygen Atoms, Solar Activity Effects, Thermosphere
Scientific paper
The monthly median NmF2 (maximum F-region ionization) values during the high sunspot period 1958 from a number of low latitude stations in the American zone are subjected to harmonic analysis. The results are presented as a function of local time and are compared with those obtained earlier from the Indian zone. The gross features in the two zones are found to be identical. The semiannual periodicity is shown to have maxima in April and October at all stations for all hours of the day and this is attributed to similar changes in thermospheric atomic oxygen concentration controlling the production of ionization. The annual maximum exhibits systematic changes in the amplitude and phase as a function of latitude and local time.
Degaonkar S. S.
Shirke J. S.
No associations
LandOfFree
Low latitude features of annual and semiannual periodicities in NmF2 in American and Indian zones 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 Low latitude features of annual and semiannual periodicities in NmF2 in American and Indian zones, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low latitude features of annual and semiannual periodicities in NmF2 in American and Indian zones will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1617840