Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes

Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes

The records of VLF atmospherics over Calcutta and then over Kalyani (West Bengal) during the torrential rainfall, caused by violent monsoon and post-monsoon depressions, exhibit distinct long-period fadings both at day and night. Interesting results obtained from an analysis of round-the-clock a...

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Main Authors: A. B. Bhattacharya, S. K. Kar, M. K. Chatterjee, R. Bhattacharya
Format: Article
Language:English
Published: Copernicus Publications 1998-02-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/16/183/1998/angeo-16-183-1998.pdf
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spelling doaj-112e096db81c40aa9d4d5339ce92241f2020-11-24T22:01:44ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05761998-02-011618318810.1007/s00585-998-0183-xLong-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudesA. B. Bhattacharya0A. B. Bhattacharya1S. K. Kar2M. K. Chatterjee3M. K. Chatterjee4R. Bhattacharya5Department of Physics, University of Kalyani, Kalyani, Nadia, 741 235, India<i>Correspondence to:</i> A. B. BhattacharyaDepartment of Physics, University of Kalyani, Kalyani, Nadia, 741 235, India<i>Currently at: </i>Department of Physics, Serampore College,Department of Physics, University of Kalyani, Kalyani, Nadia, 741 235, IndiaCentre of Advanced Study in Radio Physics & Electronics, Calcutta University, Calcutta, 700 009, IndiaThe records of VLF atmospherics over Calcutta and then over Kalyani (West Bengal) during the torrential rainfall, caused by violent monsoon and post-monsoon depressions, exhibit distinct long-period fadings both at day and night. Interesting results obtained from an analysis of round-the-clock atmospherics data and associated meteorological parameters are reported in this paper. A possible correlation between the severe meteorological activity with the solar geophysical phenomena was studied. The results are indicative of an interesting sequence of solar-terrestrial events. A tentative conclusion is reached, suggesting an origin of the fading from atmospheric gravity waves generated in the centre of activity of the depressions concerned.<br><br><b>Key words.</b> Meteorology and atmospheric dynamics · Lightning · Precipitationhttps://www.ann-geophys.net/16/183/1998/angeo-16-183-1998.pdf
collection DOAJ
language English
format Article
sources DOAJ
author A. B. Bhattacharya
A. B. Bhattacharya
S. K. Kar
M. K. Chatterjee
M. K. Chatterjee
R. Bhattacharya
spellingShingle A. B. Bhattacharya
A. B. Bhattacharya
S. K. Kar
M. K. Chatterjee
M. K. Chatterjee
R. Bhattacharya
Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes
Annales Geophysicae
author_facet A. B. Bhattacharya
A. B. Bhattacharya
S. K. Kar
M. K. Chatterjee
M. K. Chatterjee
R. Bhattacharya
author_sort A. B. Bhattacharya
title Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes
title_short Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes
title_full Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes
title_fullStr Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes
title_full_unstemmed Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes
title_sort long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes
publisher Copernicus Publications
series Annales Geophysicae
issn 0992-7689
1432-0576
publishDate 1998-02-01
description The records of VLF atmospherics over Calcutta and then over Kalyani (West Bengal) during the torrential rainfall, caused by violent monsoon and post-monsoon depressions, exhibit distinct long-period fadings both at day and night. Interesting results obtained from an analysis of round-the-clock atmospherics data and associated meteorological parameters are reported in this paper. A possible correlation between the severe meteorological activity with the solar geophysical phenomena was studied. The results are indicative of an interesting sequence of solar-terrestrial events. A tentative conclusion is reached, suggesting an origin of the fading from atmospheric gravity waves generated in the centre of activity of the depressions concerned.<br><br><b>Key words.</b> Meteorology and atmospheric dynamics · Lightning · Precipitation
url https://www.ann-geophys.net/16/183/1998/angeo-16-183-1998.pdf
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