@article{ref1,
title="Unintended consequences of recent changes in ship traffic",
journal="Journal of the Acoustical Society of America",
year="2011",
author="McKenna, Megan F. and Wiggins, Sean M. and Hildebrand, John A. and Ross, Donald",
volume="130",
number="4",
pages="2557-2557",
abstract="Underwater ambient noise levels measured off the coast of southern California were correlated with regional changes in commercial shipping trade. Between 2007 and 2010, two events occurred that resulted in a decrease in ship traffic in the Santa Barbara Channel: the economic recession and a coastal air-quality improvement rule. From October 2005 to June 2010, monthly low-frequency ambient noise levels at a site 3 km from a major shipping route were compared to regional traffic levels. Two different metrics of ship traffic showed that on average a 1 dB reduction in low-frequency noise levels resulted from a decrease in traffic by one ship passage per day in a coastal basin.<p /> <p>Language: en</p>",
language="en",
issn="0001-4966",
doi="10.1121/1.3655243",
url="http://dx.doi.org/10.1121/1.3655243"
}