Remarkable effects on the records on Integrated Field Intensity of Atmospherics (IFIA) over Kolkata (latitude: 22.56°N, longitude: 88.5°E) at 3 kHz and 9 kHz are observed due to severe electrical activity in a thunderstorm, AILA, followed by severe thundershowers and lightning. The analyses and evaluation of the recorded data have been presented here. © 2011 IEEE.

S S DE

B BANDYOPADHYAY

S PAUL

D K HALDAR

M SANFUI

T K DAS

S BARUI

G CHATTOPADHYAY

B K DE

P PAL

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Studies on the effects of AILA-2009 on VLF Integrated Field Intensity of Atmospherics

2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011

The atmosphere near the ground surface is affected more than the ionospheric region in terms of ionization by the electromagnetic emissions caused by various reasons. One such occurrence is the emission of radon (Rn222) from lithosphere through the deformities of the earth crust during the earthquakes. This creates atmospheric anomalies before any strong seismic activities which seem to be present in the meteorological parameters. The evidence for atmospheric anomalies has yet to be meticulously analysed. The data for analysis can be recorded by receiving through L-type antenna and a detector module having a local oscillator, power amplifier, IF amplifier and data acquisition card. But in this work, the data are satellite data. Here, the event of Indonesia earthquake occurred on 6 December 2016 with magnitude Mw 6.5 analysed for observing the anomalies in meteorological parameters, viz. air temperature, relative humidity, atmospheric pressure and wind speed before and after this earthquake. The variations of these parameters might help to predict the occurrence of the earthquake 2–3 days prior to its occurrence. We obtain certain anomalies in temperature, relative humidity, pressure and wind speed observations. Also, we have found that 30-km depth is very sensitive for Indonesia. © 2020, Springer Nature Singapore Pte Ltd.

Lecture Notes in Electrical Engineering

Meteorological parameter studies during 6 December 2016 Indonesia earthquake (Mw 6.5)

Studies on the effects of AILA-2009 on VLF integrated field intensity of atmospherics

Journal	2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011
Publisher	-