Electrostatic Charging Processes in the Earth Atmosphere
1999-01-2366
06/22/1999
- Event
- Content
- The electric current which circulates downwards in the Earth atmosphere results from the motion of positive and negative ions drifting in opposite directions under the influence of an electric field. A body such as a balloon or a gondola, moving upwards against the electric field collects an excess of positive ions, whereas a falling body, such as a water drop, may acquire a negative charge. In a similar way, parcels of hot and cold air ascending or descending in a cloud are selectively charged. This model is proposed as an explanation for the charge separation mechanism which takes place within thunderstorm clouds characterized by vigourous turbulence and convection.
- Pages
- 7
- Citation
- Grard, R., "Electrostatic Charging Processes in the Earth Atmosphere," SAE Technical Paper 1999-01-2366, 1999, https://doi.org/10.4271/1999-01-2366.