Oregon State University

CIMRS marine acoustics researchers track the path of an iceberg through sound

This lay language paper,"Noise from Icebergs off Antarctica and Soundscape of the South Pacific Ocean,"  was presented at the annual meeting of Acoustic Society of America held in San Francisco in early December 2013, see: http://www.acoustics.org/press/166th/1aAO7-Matsumoto.html .

C19a iceberg path

An excerpt from the paper:

"This iceberg (C19), the second largest ever recorded, was trapped in sea ice for almost six years. It then broke into two pieces. The larger section (~5,100 km2), dubbed iceberg C19a, was released from the grip of the sea ice and started drifting slowly eastward into the open Pacific Ocean. As it sailed into warmer waters, currents and thermal and wind stresses caused the iceberg to crack and break apart. In January of 2008, OSU/NOAA's (Oregon State University/National Oceanic Atmospheric Administration) equatorial hydrophone! (EEP-NW) began picking up underwater noise generated during its breakup. The sounds also were observed at the International Monitoring Station (IMS) hydrophone station near Juan Fernandez Island (H03N), off the coast of Chile (Fig. 1). "

There is also an animation of the iceberg's path in the paper.  

Check it out! :)






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