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League of Extraordinary Scientists

  • Prof. S. K. Mitra was one of the first in the world to suggest use of HF atmospheric radars with his observations in 1935

  • The first experimental evidence of E layer predicted by Heaviside and Kennely was obtained by Mitra and Rakshit in 1930.

  • His seminal book ‘The Upper Atmosphere’ has been considered a Bible for researchers in the field.

This Department was one of the First in India to start Post-Graduate teaching in Electronics

  • Ionospheric studies conducted from University of Calcutta since early 1930s spearheaded by Late Professor Sisir Kumar Mitra, have made seminal contribution in advancement of the subject (Mitra et al., Nature, 1933; Mitra and Syam, Nature, 1935; Mitra, Nature, 1936, 1938; Mitra et al., Ind. J. Phys., 1938; Mitra and Kundu, Nature, 1954).

  • The Ionosphere Field Station was established in 1953 at Haringhata, about 50km north-east of Calcutta at a place of relatively low radio frequency interference.

  • Professor Mitra assembled one of the First manual Ionospheric Sounding System in Asia in 1954 and established it at the Ionospheric Field Station in 1956 thereby putting University of Calcutta in an elite global chain of Ionospheric Sounders.

  • NBS-C2 Ionosonde data for the period 1957-1976 from Ionosphere Field Station at Haringhata available at the Space Physics Interactive Data Resources (SPIDR) website under the National Geophysical Data Center located at Boulder, Colorado, USA

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The ST Radar project was initiated and strongly defended by renowned scientist Professor Ashish Kumar DasGupta on behalf of University of Calcutta

His student and renowned researcher, Prof. Animesh Maitra supervised this project during 2011-2017

Uniqueness of the Radar & Radar Site

  • Uniqueness of the Radar Site: The location of this radar is situated at the verge of the transition region between the tropics and subtropics, and near the northern crest of the Equatorial Ionization Anomaly (EIA).
  • Uniqueness of the Radar: The ST Radar at Ionosphere Field Station (22.93°N, 88.50°E geographic; magnetic dip: 34°N), is the only radar at this frequency (53MHz) in the entire Eastern and North-Eastern India as well as South-East Asian longitude sector

First 50MHz active phased-array Radar in an Indian University and the 3rd such Radar In India (the others being at SHAR and NARL)

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