630 nm nightglow observations from 17°N latitude

Details 630 nm nightglow observations from 17°N latitude 630 nm nightglow observations from 17°N latitude

Feb 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ep%26s...52..105m&link_type=abstract

Earth, Planets and Space, Volume 52, p. 105-110.

Computer Science

1

Scientific paper

Regular measurements of [OI] 630 nm nightglow have been carried out at Kolhapur (16.8°N, 74.2°E, dip lat 10.6°N) in India with the help of tilting filter photometers during clear moonless nights. Several characteristic nightglow data sets are presented in the report for geomagnetically quiet and disturbed nights. A comparison has been made between the simultaneous nightglow and the ionospheric parameters of virtual F-layer height and critical frequency of the F-layer at Ahmedabad (23.02°N, 72.6°E). In general, a good correlation (c.c. = 0.8 to 0.9) is found between the measured airglow emission and F-region peak electron densities during quiet periods but for intense magnetic disturbances the airglow fluctuations are mainly controlled by sharp changes in height variations of the h'Flayer. The period of airglow variation generally corresponds to periods of F-region height variation during magnetic disturbances. Using a long series of data between December 1989 and April 1996, the mean seasonal nocturnal variations of 630 nm emission have been compared during high and low solar activity periods.

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