S
Sujay Pal
Researcher at University of Calcutta
Publications - 46
Citations - 276
Sujay Pal is an academic researcher from University of Calcutta. The author has contributed to research in topics: Ionosphere & Very low frequency. The author has an hindex of 9, co-authored 44 publications receiving 217 citations. Previous affiliations of Sujay Pal include Indian Centre for Space Physics & University of Electro-Communications.
Papers
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Journal ArticleDOI
Modeling of sub-ionospheric VLF signal perturbations associated with total solar eclipse, 2009 in Indian subcontinent
TL;DR: In this paper, a week-long campaign was conducted in the Indian sub-continent to study the low-latitude D-region ionosphere using the very low frequency (VLF) signal from the Indian Navy transmitter (call sign: VTX3) operating at 18.2 kHz.
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First ever VLF monitoring of the lunar occultation of a solar flare during the 2010 annular solar eclipse and its effects on the D-region electron density profile
TL;DR: In this article, a ground-based Very Low Frequency (VLF) radio receiver of Indian Centre for Space Physics located at Khukurdaha ( 22 ° 27 ′ N, 87 ° 45 ′ E ) monitored the VLF signal at 19.8 kHz from the NWC station during a partial solar eclipse (maximum obscuration 75%) which took place on January 15, 2010.
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Theoretical study of lower ionospheric response to solar flares: sluggishness of D-region and peak time delay
TL;DR: In this paper, the authors used a model to find ion densities and resulting very low frequency (VLF) signal perturbations during some solar flares and found that the delay in the peak of the electron densities in the lower ionosphere varies from height to height.
Proceedings ArticleDOI
Theoretical models for Computing VLF wave amplitude and phase and their applications
Sujay Pal,Sandip K. Chakrabarti +1 more
TL;DR: The basics of the wave hop theory and the Mode theory are presented and the signal amplitudes as a function of distance from a transmitter using both theories are computed.
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Sub-ionospheric VLF signal anomaly due to geomagnetic storms: a statistical study
TL;DR: In this article, the effect of geomagnetic storms on the sub-ionospheric VLF/LF (Very Low Frequency/Low Frequency) propagations for different latitudes based on 2-year nighttime data from Japanese VLIW observation network was investigated.