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|Title:||Imaging observations of upper mesospheric nightglow emissions from Tirunelveli (8.7oN)|
|Authors:||Narayanan, V Lakshmi|
Mesosphere-lower thermosphere region
|Abstract:||An all-sky airglow imager was installed at the equatorial site Tirunelveli (8.7oN, 77.8oE geographic; 1.34oN magnetic dip) during January 2007 to study the small-scale dynamics occurring in the mesosphere-lower thermosphere (MLT) region. The instrument details are presented in the paper along with methods of information retrieval from the recorded data. The presence of a variety of small-scale mesospheric dynamical events, observed with the instrument, is demonstrated. Preliminary results on the observed features, viz. the quasi-monochromatic gravity waves and instability features, such as ripples and mesospheric bores, are presented in the paper.|
|ISSN:||0975-105X (Online); 0367-8393 (Print)|
|Appears in Collections:||IJRSP Vol.38(3) [June 2009]|
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