Shallow Water Ambient Noise Levels in the Tongue of the Ocean, Bahamas, Fall of 1965 and Summer of 1966
2007
Woodson, John S. | Reaves, Jr, William J.
Ambient noise was monitored in shallow water east of Andros Island, Tongue of the Ocean, in November and December 1965 and September 1966. Data were collected with an encapsulated, self-recording device and a stand-mounted hydrophone connected by cable to shore-based instrumentation. The prime noise generator was found to be snapping shrimp. Shrimp noise was high during light winds and low during winds approaching gale force. During winds of whole gale force, a sevenfold increase in noise level can be expected over that observed for normal weather conditions. Shipping was an insignificant contributory noise source at frequencies in the 5 - 10 kHz range. The noise level was slightly higher during cold weather months as indicated by the November-December 1965 mean of -55.5 db at 10 kHz and the September 1966 mean of -63.3 db at 10 kHz.
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