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Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs

Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs

Published on: August 27, 2019

Lightning Behaviour during the COVID-19 Pandemic.

Fazandra Yusfiandika¹, Siow Chun Lim¹, Chandima Gomes²

¹Faculty of Engineering, Multimedia University, Cyberjaya, Selangor, 63100, Malaysia.

|November 23, 2021

Summary

The COVID-19 pandemic lockdowns significantly reduced lightning strikes by over 50% in Europe and 44% in Oceania. These changes correlated with atmospheric shifts, suggesting reduced human activity impacts lightning.

Keywords:

COVID-19 air temperature lightning relative humidity thunderstorm

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Area of Science:

Atmospheric Science
Environmental Science
Climatology

Background:

The COVID-19 pandemic led to a global reduction in human activities starting in early 2020.
Observed changes in air temperature and humidity have been linked to altered human behavior.
Lightning activity is known to be dependent on atmospheric conditions like temperature and humidity.

Purpose of the Study:

To evaluate the correlation between lightning strike counts (LSC) and atmospheric changes during the COVID-19 pandemic.
To investigate the impact of atmospheric variations, driven by reduced human activity, on lightning activity.
To compare lightning strike data during the pandemic lockdown period with previous years.

Main Methods:

Utilized t-tests and Pearson's correlation analysis to test hypotheses.
Analyzed the variation trend of lightning strikes count (LSC) in Europe and Oceania.
Compared LSC data from the March-July 2020 COVID-19 lockdown period with the same period from 2015-2019.

Main Results:

Lightning strike counts in Europe and Oceania decreased significantly by over 50% and 44%, respectively, during the lockdown.
Lightning strike counts showed a positive correlation with air temperature and relative humidity in Europe.
In Oceania, lightning strike counts correlated positively with air temperature but negatively with relative humidity.

Conclusions:

Lightning activity experienced significant changes during the COVID-19 pandemic.
The reduction in human activities appears to be a contributing factor to the observed changes in lightning patterns.
Atmospheric conditions, influenced by pandemic-related behavioral changes, play a key role in modulating lightning intensity.