Scientists may be able to track dangerous ash-filled clouds by using information similar to the bars showing signal strength on a cell phone.
The new technique analyzes the GPS’s “signal strength” — the intensity of a GPS signal – as it attempts to cut through a volcanic plume. The research was published online in the journal Geophysical Research Letters.
The dangerous particles within these plumes can clog an airplane’s engines and send it plummeting from the sky.
Two years ago this month, Grímsvötn, a volcano in Iceland, erupted, leaving behind a thick column of ash that led to canceled flights all over Europe for days.