By Joseph D’Aleo, CCM
The news is reporting a relatively large and long lasting volcanic eruption in Chile. According to the AP, the Chaiten volcano spewed lava and blasted ash more than 12 miles (60,000 feeet) into the sky on Tuesday, prompting a total evacuation of the provincial capital and other settlements. The volcano’s five-day eruption has sent a thick column of ash into the stratosphere, streaming across Patagonia to the Atlantic.
It is the bigger eruptions that reach above this tropospheric layer into the more stable stratosphere that can have long lasting (up to several years) and extent effects (global).
See larger image here
See larger graph here.