K. Unnikrishnan

Harmonic analysis and an empirical model for TEC over Palehua

K. Unnikrishnan, R. Balachandran Nair, Chandu Venugopal · Journal of Atmospheric and Solar-Terrestrial Physics · 2002 · 34 citations

Engineering, Geography, Tectonic Evolution +4

Impact of the Hunga Tonga-Hunga Ha'apai volcanic eruption on the changes observed over the Indian near-equatorial ionosphere

V. Rakesh, Sreekumar Haridas, C. Sivan et al. · Advances in Space Research · 2022 · 32 citations

Geophysics, Volcano Monitoring, Volcanology +7

A study on chaotic behaviour of equatorial/low latitude ionosphere over Indian subcontinent, using GPS-TEC time series

K. Unnikrishnan, Sudha Ravindran · Journal of Atmospheric and Solar-Terrestrial Physics · 2010 · 30 citations

Geophysics, Upper Atmosphere, Chaotic Behaviour +8

A comparative study of night-time enhancement of TEC at a low latitude station on storm and quiet nights including the local time, seasonal and solar activity dependence

K. Unnikrishnan, R. Balachandran Nair, Chandu Venugopal · Annales Geophysicae · 2002 · 29 citations · Full text

Geophysics, Meteorology, Low Latitude Station +15

Differences in magnetic storm and quiet ionospheric deterministic chaotic behavior: GPS total electron content analyses

K. Unnikrishnan, Akinori Saito, S. Fukao · Journal of Geophysical Research Atmospheres · 2006 · 26 citations · Full text

Geophysics, Surrogate Data Test, Geospace Physics +11