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630 nm nightglow observations from 17°N latitude
Earth, Planets and Space volume 52, pages 105–110 (2000)
Abstract
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′ F layer. 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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Mukherjee, G.K., Carlo, L. & Mahajan, S.H. 630 nm nightglow observations from 17°N latitude. Earth Planet Sp 52, 105–110 (2000). https://doi.org/10.1186/BF03351618
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DOI: https://doi.org/10.1186/BF03351618