Capturing shockwaves from a volcano with a handmade air pressure sensor
This was the activity Li captured on his sensors. Just as explosions of that magnitude can send seismic tremors through the earth, so it can send shockwaves through the earth's atmosphere. His sensors had captured just that—evidence of global atmospheric shockwaves created by the eruption.
This was the activity Li captured on his sensors. Just as explosions of that magnitude can send seismic tremors through the earth, so it can send shockwaves through the earth's atmosphere. His sensors had captured just that—evidence of global atmospheric shockwaves created by the eruption.
It's a reminder, he said of how we live in the atmosphere, and it is all around us.
"This is a good opportunity to see that," Li continued.
The pressure monitors showed the first shockwave hitting approximately 9 hours after the largest volcanic eruption. The wave shows as an extraordinary spike in pressure that lasted for about 24 minutes, and was followed by several hours of "ringing," oscillations repeating every few minutes, Li said, or elevated atmospheric noise, afterwards.
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