Trees Capture Electrical Glows During Storms in First Direct Observation
Scientists chasing thunderstorms captured faint electrical glows shimmering from treetops for the first time—a phenomenon called corona discharge that had long been suspected but never directly observed in nature.
Breakthrough in Atmospheric Science
Researchers finally captured corona discharges during thunderstorms, a phenomenon previously only theorized. Scientists drove a retrofitted minivan to chase storms and documented faint electrical glows emanating from trees during lightning conditions.
What Are Corona Discharges?
These are subtle electrical phenomena that occur when electric fields in the atmosphere become strong enough to ionize air around pointed objects like trees. Until now, scientists had suspected this happened during storms but had never recorded direct visual evidence.
Significance
This discovery could improve understanding of:
- Storm dynamics: How electrical fields develop and dissipate
- Lightning formation: Processes that trigger and sustain lightning
- Atmospheric electricity: The overall electrical balance in Earth's atmosphere
The observation was made possible by advanced imaging technology and the team's innovative storm-chasing methodology.