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S. Sripathi

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Articles by S. Sripathi

A hybrid reconstruction approach for estimating topside ionospheric scale height and its altitudinal variation using Jicamarca ISR measurements

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By K. Guru, S. Sripathi, Ram Singh, A. P. Dimri, Rajesh Kumar Barad, Danny Scipion
| Nature Verified
Abstract In ionospheric research, accurately representing the topside electron density profile is essential for predicting radio wave propagation and mitigating ionospheric effects on communication and navigation systems. Despite advances in global models and satellite observations, region-specific and continuous modelling of the topside ionosphere remains challenging due to limited in-situ measurements.
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Variability of Ionosphere Over Indian Longitudes to a Variety of Space Weather Events During December 2006

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By Alok Ranjan, R. Fleury, S. Sripathi, C. Amory-Mazaudier
| Wiley Online Library Verified
1 Introduction Thanks to spacecraft like SOHO and Ulysses, among others, a great deal of progress has been made in solar physics during the last two decades. Scientific initiatives such as the International Heliophysics Year (IHY) and the International Space Weather Initiative (ISWI) have improved and guided the research of the influence of solar events on the terrestrial environment. Then, Space Weather was defined to develop a global approach to understand the Sun-Earth system (Lilensten, 2007).
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Deep Electron Density Depletion Near Sunset Terminator on St. Patrick's Day Storm and Its Impacts on Skywave Propagation

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By M. Ankita, S. Tulasi Ram, K. K. Ajith, S. Sripathi
| Wiley Online Library Verified
2.1 HF Radio Wave Propagation Simulator An HF propagation simulator is developed by solving the ray equations that give the radio wave position and direction vectors in a medium with inhomogeneously varying refractive index as given by Haselgrove (1954, 1963). (1) (2) The Hamiltonian required to solve these equations can be derived from the dispersion relation. There are many choices available from which Hamiltonian can be chosen.
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