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The present work pertains to the eclipse‐induced gravity wave modulations in the ionosphere‐thermosphere region over Trivandrum (8.5°N, 77°E, dip 2°N) during the annular solar eclipse of 15 January 2010. Electron density and neutral wind rocket payload measured horizontal winds and electron densities at E region altitudes, and ionosonde‐derived foF1 and foF2 parameters are used to analyze the characteristics of the eclipse‐induced gravity waves. The analysis reveals an intensification of gravity waves with periods around 30–100 min during the peak phase of the eclipse. The vertical wavelength of the prevalent wave is found to be around 2 km. The role of gravity wave‐induced winds in generating blanketing Es over the equator is also examined.
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Manju et al. (2014) studied this question.
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