Trees Fire Off Ultraviolet Sparkles During Thunderstorms, Scientists Confirm

Scientists have observed "coronae" on treetops for the first time, confirming the phenomenon occurs in the wild.

Thunderstorms conjure ghostly coronae in treetops, observed outdoors for the first time

For the first time, researchers have observed and measured weak electrical discharges, known as coronae, on trees during thunderstorms. A new study describes the near-invisible sparkles appearing ...
IEEE

Power System Security Boundary Identification and Rules Extraction based on Tighten Weighted Oblique Decision Tree

Abstract: The increasing penetration of renewable energy has a significant impact on the secure operation in power system. The high-dimensional observations in large-scale power grids make it ...

When Do You Need to Call a Tree Doctor?

You probably aren’t watering or pruning the 75-foot oak or maple in the front yard, but mature trees aren’t maintenance free.
Celtics Wire

Tips on identifying trees in the middle of winter by Henry Homeyer

Trees can be identified in winter by observing their needles, bark, branching patterns, and buds. Distinctive bark, such as ...