Forensic studies of infrasound from massive hypersonic sources
Article first published online: 3 JUN 2011
©2004. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 85, Issue 43, pages 433–441, 26 October 2004
How to Cite
2004), Forensic studies of infrasound from massive hypersonic sources, Eos Trans. AGU, 85(43), 433–441, doi:10.1029/2004EO430002., , , , , , , , and (
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
The rumble of hypersonic objects tearing through the atmosphere can be routinely detected by sensitive infrasound sensors [Brown et al., 2002]. Meteors and reentering spacecraft are the most common hypersonic sources, although supersonic aircraft generate comparable signatures. This article concentrates on two exceptionally energetic events: the tragic Columbia reentry of 1 February 2003 (STS-107) and the 23 April 2001 superbolide explosion.
On 23 April 2001, a large meteor exploded at a height of ˜28.5 km between Hawaii and California. With an estimated explosive energy of ˜10 k of TNT, this event catalyzed the U.S. infrasound community to work with other sectors of government, academia, and industry to provide rapid analyses of any available infrasound, seismic, hydroacoustic, and satellite data that would help identify the explosion source and determine its location.