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Note technique
Details relating to the provision of “NSG” by Météorage

To address divergent practices worldwide in the way that lightning density is determined, the International Electrotechnical Commission (IEC) deemed it necessary to establish a common standard in order to harmonise said practices.

IEC/NF EN 62858:2016 aims to establish common rules and identify reliable methods for the establishment of lightning statistics that serve as the basis for lightning risk analysis (LRA).

 

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Performance analysis of the Météorage network in 2015

The video data and electric field recording campaign took place from 16 July to 6 October 2015. A total of 206 observations were recorded across France during 13 storm-chasing missions carried out by Temps d’Orages.

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Calculation principle of peak intensity of stroke current

The Météorage network gives an estimate of the intensity of the arc current that flows through lightning strikes that are produced between clouds and the ground and those that remain in the air. This calculation is carried out by the central calculator in real time using the peak magnetic field amplitude measured by the sensors.

 

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