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Discussion papers | Copyright
https://doi.org/10.5194/nhess-2018-178
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 02 Jul 2018

Research article | 02 Jul 2018

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Natural Hazards and Earth System Sciences (NHESS).

Preliminary results from the total lightning detector-cum-mini weather station installed at the Calcutta University

Subrata Kumar Midya1, Sujay Pal1, Reetambhara Dutta1, Prabir Kumar Gole1, Upal Saha2, Goutami Chattopadhyay1, and Soumyajit Hazra3 Subrata Kumar Midya et al.
  • 1Department of Atmospheric Sciences, University of Calcutta, Kolkata-700019
  • 2National Centre for Medium Range Weather Forecasting, Noida-201309, India
  • 3Skymet Weather Services Pvt. Ltd., Cyberone Tower, Sector-30 A, Vashi, Navi Mumbai

Abstract. We report preliminary results derived from the total lightning detector-cum-mini weather station installed at the Calcutta University during 2016. This detector is a part of Earth Networks Total Lightning Network (ENTLN) operated globally for ground-based monitoring of total lightning activity and forecasting of localized storm alert and severe weather conditions. This set up provides improved measurement of in-cloud (IC) lightning as well as cloud-to-ground (CG) lightning in addition to daily weather data. Severe weather such as thunder squall, Nor'wester, hailstorm, cyclone over the Gangetic West Bengal can be studied in details based on total lightning activity along with other atmospheric and meteorological research using the weather data. Here we present some initial results from the analysis of total lightning measurements during the recent Nor'wester events occurred in and around Kolkata. We also present variation of wet component of atmospheric refractivity index during the monsoon season which can be used to declare the onset and withdrawal time of monsoon over Gangetic West Bengal.

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