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Acoustics
A publication of the Acoustical Society of America
Volume 11 | Issue 1 | Winter 2015
Today
TABLE OF CONTENTS
6 From the Editor
7 From the ASA President
8 From the ASA Executive Director
10 Tribute to the ASA
A short commentary by Dr. Leo Beranek
27 Errata Featured Articles
12 A Century of Sonar: Planetary Oceanography, underwater Noise Monitoring, and the Terminology of underwater Sound
- Michael A. Ainslie
No self-respecting science – or scientist – would tolerate a factor of four uncertainty in the inter- pretation of a reported measurement or model prediction, arising from poorly defined termi- nology alone, so why do we?
20 worldwide Low-Frequency Ambient Noise - David L. Bradley and Stephen M. Nichols
Hydrophone stations deployed for ensuring compliance to the Nuclear-Test-Ban Treaty offer a tremendous tool for monitoring and under- standing the underwater acoustic environment.
28 Computer Simulation for Predicting Acoustic Scattering from Objects at the Bottom of the Ocean - David S. Burnett
Applying the modern discipline of computation- al mechanics to solving complex mathematical problems in acoustics.
38 Acoustic Cloaking - Andrew N. Norris
It might drive bats batty, but there is no funda-
mental physical limitation on developing acous- tic cloaking devices.
Departments
48 Technical Committee report:
Acoustical Oceanography – Andone C. Lavery
52 ASA News:
Noisy Planet - Melissa McGowan
Student Activities at ASA in Indianapolis - Chris Jasinski
Acoustical Society Foundation Fund
- Carl J. Rosenberg
54 Classifieds
55 Business Directory 56 Advertisers Index
About the Cover
"A Century of Sonar: Planetary
The cover image is from the article,
Th
"
Oceanography, Underwater Noise
O
Monitoring, and the Terminology
M
of Underwater Sound," by Michael
o
A. Ainslie. Ganymede, Jupiter’s
A
argest satellite, is one of several
la
l
moons in the Solar System thought
m
to contain liquid water. (Source:
t
NASA [NASA, 2014], Image credit:
N
NASA/JPL-Caltech)
N
2 | Acoustics Today | Winter 2015