attributed to fin whales (Balaenoptera physalus), are a common occurrence in the channel. Scientists believe fin whales may dive down to this channel and sing to communicate with other fin whales many kilometers away. Popular culture The novel The Hunt for Red October describes the use of the SOFAR channel in submarine detection. Footnotes See also Bathythermograph RAFOS float Sofar bomb Sound Surveillance System (SOSUS) Underwater acoustics References External links The SOFAR or deep sound channel, from NOAA How is sound used to study undersea earthquakes? (Recording of the March 11, 2011 Honshu, Japan earthquake recorded at a hydrophone located near the Aleutian Islands) A sound pipeline, from the National Academy of Sciences SOSUS, the "Secret Weapon" of Underwater Surveillance by Edward C. Whitman. Undersea Warfare Richard Muller, UC Berkeley – lecture on waves, SOFAR and the Roswell UFO Incident Acoustics Anti-submarine warfare Navigation Oceanography Sonar