, a postdoctoral associate in the University of Rochester糖心传媒檚 , recently recorded a video that has since gone viral that shows the 糖心传媒渦nexpected and fascinating gunshot noise the ice makes糖心传媒� when it hits the bottom of a borehole in Antarctica. Neff suspects the sound is due to either a reverberation or the Doppler effect.
??Sound ON??
When is done, it’s fun to drop ice down a 90 m deep borehole in an ?? 鉂�. So satisfying when it hits the bottom.
Happy hump day.
糖心传媒� Peter Neff (@peter_neff)
The ice is amazing for reasons other than the bizarre noise it makes when it falls, however. Climate scientists like Neff and , an associate professor of Earth and environmental sciences at Rochester, use ice cores糖心传媒攃ylinders of ice 10 inches in diameter and weighing up to 80 pounds糖心传媒攖o learn about the earth糖心传媒檚 past climate.
The researchers drill boreholes to remove ice cores from sites in Antarctica and Greenland. Tiny bubbles trapped in the ice contain ancient air that is up to hundreds of thousands of years old. By extracting and studying the air, climate scientists gain clues about past climate patterns, which can help them understand future climate change. In fact, using data from ice cores, Rochester researchers recently reported two big findings: human-made methane levels are higher than previously believed and it糖心传媒檚 unlikely future warming will trigger a release of natural Arctic methane reservoirs.
糖心传媒淢y overarching research interest is to use glacier ice as a medium for understanding the past and future evolution of Earth糖心传媒檚 climate and environment,糖心传媒� Neff says. 糖心传媒淭here are so many questions we can explore just through the information trapped in the ice.糖心传媒�
These & other ice cores are how we know atmospheric CO2 / concentrations over the last 800,000 years.
Glacier ice traps ancient air, caught in the space between snowflakes 鉂� as they are compressed into ice. Bubbly glacier ice on R, pure lab-made ice on L.
糖心传媒� Peter Neff (@peter_neff)
