Some features of ambient noise in shallow tropical waters
نویسندگان
چکیده
منابع مشابه
High-frequency ambient noise in warm shallow waters
In deep water, the dominant sources of natural ocean noise are often events occurring at the sea/air interface. In shallow water, particularly if it is warm, this is often no longer the case. Where wind-related noise is less pronounced, snapping shrimp alone can easily dominate the soundscape over two decades of bandwidth. Particularly for ambient noise imaging, the high frequency content of th...
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The high frequency ambient noise in warm shallow waters is dominated by snapping shrimp. The loud snapping noises they produce are impulsive and broadband. As the noise propagates through the water, it interacts with the seabed, sea surface, and submerged objects. An array of acoustic pressure sensors can produce images of the submerged objects using this noise as the source of acoustic "illumi...
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Oceanographic in-situ measurements are becoming increasingly expensive as remote sensing tools concurrently enjoy a continuing expansion of capability. While in-situ observations will never be replaced completely, the current trend is clearly to make as much use of inferential and remotely-garnered observations as possible. In the ocean, acoustics is one of the foremost tools to use for remote ...
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The class of acoustic imaging techniques known as Ambient Noise Imaging started with Acoustic Daylight, which has since been joined over the past decade by several other independent algorithms. To date, the algorithms described in the literature have generally been statistical approaches, treating the insonification by sources of opportunity as a random variable. In warm shallow waters, where s...
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Much is known about deep ocean ambient noise, rather less about the more highly structured and variable noise in temperate coastal waters, and rather little about the tropical shallow waters that include coral reefs and the biological diversity these ecosystems support. Interest in shallow water acoustics has been growing over the last decade, and more recently specific interest has bloomed in ...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1993
ISSN: 0001-4966
DOI: 10.1121/1.406607