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bly stratified atmosphere,” J. Acoust. Soc. Am. 118, 3420–3429 (2005).
7 C. Millet, J.-C. Robinet, and C. Roblin, “On using computational aeroacoustics for long-range propagation of infrasounds in real- istic atmospheres,” Geophysical Res. Lett. 34, L14814, doi:10.1029/2007GL029449 (2007).
8 S. J. Arrowsmith, D. P. Drob, M. A. H. Hedlin, and W. Edwards, “A Joint Seismic and Acoustic Study of the Washington State Bolide: Observations and Modeling,” J. Geophysical Res. 112, D09304, doi:10.1029/ 2006JD008001 (2006).
9 H. E. Bass, and L. C. Sutherland, “Atmospheric absorption in the atmosphere up to 160 km,” J. Acoust. Soc. Am. 115, 1012–1032 (2004).
10 M. Garcés, D. Drob, and M. Picone, “A theoretical study of the effect of geomagnetic fluctuations and solar tides on the propa- gation of infrasonic waves in the atmosphere,” Geophys. J. Int. 148, 77–87 (2002).
11 A. Le Pichon, E. Blanc, D. P. Drob, S. Lambotte, J. X. Dessa, M. Lardy, P. Bani, and S. Vergniolle, “Infrasound monitoring of vol- canoes to probe high-altitude winds,” J. Geophysical Res. 110, D13106, 10.1029/2004JD005587 (2005).
12 D. P. Drob, J. M. Picone, and M. Garcés, “Global morphology of infrasound propagation,” J. Geophysical Res. 108(D21), 4680, 10.1029/2002JD003307 (2003).
13 J. M. Picone, A. E. Hedin, D. P. Drob, and A. C. Aikin, “NRLM- SISE-00 empirical model of the atmosphere: Statistical compar- isons and scientific issues,” J. Geophysical Res. 107(A12), 1468, doi:10.1029/2002JA009430 (2002).
14 A. E. Hedin, E. L. Fleming, A. H. Manson, F. J. Scmidlin, S. K. Avery, R. R. Clark, S. J. Franke, G. J. Fraser, T. Tsunda, F. Vial,
and R. A. Vincent, “Empirical Wind Model for the Upper, Middle, and Lower Atmosphere,” J. Atmospheric and Terrestrial Physics 58, 1421–1447 (1996).
15 V. E. Ostashev, D. Hohenwarter, K. Attenborough, P. Blanc-Benon, D. Juvé, and G. H. Goedecke, “On the refraction law for a sound ray in a moving medium,” Acta Acustica 87, 303–306 (2001).
16 E. Herrin, P. Golden, P. Negraru, B. Andre, H. Bass, M. Garcés, M. Hedlin, M. McKenna, D. Norris, D. Osborne, and R. Whitaker, “Infrasound Calibration Explosions from Rockets Launched at White Sands Missile Range,” Proceedings of the 28th Seismic Research Review, LA-UR-06-5471, 910–918 (2006).
17 M. A. Zumberge, J. Berger, M. A. H. Hedlin, R. Hilt, S. Nooner, and R. Widmer-Schnidrig, “An optical fiber infrasound sensor: A new lower limit on atmospheric pressure noise between 1 Hz and 10 Hz,” J. Acoust. Soc. Am. 113, 2474–2479 (2003).
18 K. Walker, M. Zumberge, J. Berger, and M. Hedlin, “Determining infrasound phase velocity direction with a three- arm OFIS,” Proceedings of the 28th Seismic Research Review, 947–956 (2006).
19 H. Bass, and D. Shields, “The use of Arrays of Electronic Sensors to Separate Infrasound from Wind Noise,” Proceedings of the 26th Seismic Research Review, LA-UR-04-5801, 601–607 (2004).
20 H. Bass, J. Bhattacharyya, M. Garcés, M. Hedlin, J. Olson, and R. Woodward, “Infrasound,” Acoustics Today 2, 9–19, (2006).
21 J. P. Burg, “The Relationship Between Maximum Entropy Spectra and Maximum Likelihood Spectra,” Geophysics 37(2), 375–376 (1972).
22 W. T. Armstrong, “Comparison of infrasound correlation over differing array baselines,” Proceedings of the 20th Annual Seismic Research Symposium, 543–554
Henry E. Bass joined the Physics fac-
ulty of the University of Mississippi
in 1970, and was appointed Frederick
A. P. Barnard Distinguished
Professor in 1988. He served as
Acting Chairman, Department of
Physics and Astronomy, Acting
Director of the Acoustics Research
and Development Division of the
Institute for Technology Development,
Director of the University of Mississippi Physical Acoustics Research Center, and Director of the National Center for Physical Acoustics since 1992. He was a visiting Distinguished Professor of Physics at the Naval Postgraduate School, 1989-1990, and is an adjunct member of the Graduate Faculty in the Department of Earth Sciences at The University of Memphis. He holds B.S. and Ph.D. degrees from Oklahoma State University. Dr. Bass is a Fellow of the Acoustical Society of America (ASA) and the Military Sensing Symposium. In 1978, he was awarded the ASA
Bill Andre served as Chief of the SMDC DARPA Office within the Space and Missile Defense Center of the US Army Space and Missile Defense Command (SMDC), and retired from government service in June 2007 after 40 years of service. He was the Command Agent to the Defense Advanced Research Project Agency (DARPA), and Executive
Agent for the Deputy Assistant to the Office of Secretary of Defense for Chemical Demilitarization and Threat Reduction. His responsibilities as manager of research pro- grams also included Monitoring Systems Research for seis- mic, acoustic and radionuclide sensor networks over a peri- od of ten years. A special interest was in the area of acoustic sensors and working with the U.S. Infrasound team. He received engineering degrees in Mechanical Engineering from Louisiana State University, and in Systems Engineering from Texas A&M University.
18 Acoustics Today, April 2008