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Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry

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Precipitation Modification by Ionization.

R Giles Harrison¹, Keri A Nicoll^1,2, Maarten H P Ambaum¹

¹Department of Meteorology, University of Reading, Reading, RG6 6BB, United Kingdom.

Physical Review Letters

|May 30, 2020

Summary

This summary is machine-generated.

Increased atmospheric ionization from artificial radioactivity altered rainfall patterns and cloud properties. This suggests electrical charges significantly influence precipitation and cloud microphysics in Earth

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Area of Science:

Atmospheric science
Cloud physics
Environmental radioactivity

Background:

Global electric circuit current influences cloud properties.
Droplet charge is linked to rainfall.
Artificial radioactivity can increase atmospheric ionization.

Purpose of the Study:

To investigate the impact of enhanced global circuit current on rainfall.
To test the hypothesis that electrical charges affect cloud microphysics.

Main Methods:

Examined changes in daily rainfall distribution.
Assessed cloud optical thickness.
Correlated changes with a period of increased artificial radioactivity and global circuit current.

Main Results:

Significant changes in daily rainfall distribution were observed.
Daily rainfall increased by 24% in the Shetland Islands.
Local clouds showed optical thickening during the study period.

Conclusions:

The findings support the hypothesis of electrically induced microphysical changes in clouds.
Additional ionization from artificial radioactivity can influence rainfall.
Cloud electrical properties play a role in precipitation processes.