Coordinated thermospheric day-night airglow and ionospheric measurements from low latitudes-First results

Details Coordinated thermospheric day-night airglow and ionospheric measurements from low latitudes-First results Coordinated thermospheric day-night airglow and ionospheric measurements from low latitudes-First results

Apr 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.1387t&link_type=abstract

Geophysical Research Letters, Volume 28, Issue 7, p. 1387-1390

Physics

4

Atmospheric Composition And Structure: Thermosphere-Composition And Chemistry, Ionosphere: Equatorial Ionosphere, Ionosphere: Ionosphere/Atmosphere Interactions

Scientific paper

The Dayglow photometer which monitors the O(1D)630.0nm thermospheric airglow emission, has been converted into a day-night photometer and was operated from Waltair (17.7°N, 83.3°E dip. Lat. 10.09°N) during March 1998 as a part of the Indian Solar Terrestrial Energy Program (ISTEP) campaign. The first results on the day-night airglow measurements together with ionosonde data from the same location are scrutinized in the present exercise. The base height of the F-layer (h'F) showed a strong negative correlation with dayglow intensity similar to nighttime conditions and a new empirical relation (Barbier type) linking the F-region electron densities and the h'F with the dayglow intensity has been worked out highlighting the importance of chemical processes in OI 630.0 nm dayglow and its variabilities.

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