Talk:SOFAR channel

message: What does SOFAR stand for? —The preceding unsigned comment was added by 167.206.174.75 (talk) 15:14, 4 May 2006 (UTC)
replies: text: Yes, there are some problems here. The text says "Near Bermuda, the lowest density water occurs at a depth of around 1000 metres." which cant be right. Fig 10:29, 22 March 2007 (UTC)

message: The term SOFAR is way out of date and referred to a WWII downed plane location system.  DSC is the preferred term.Adresia 19:52, 23 June 2007 (UTC)
replies: text: Agree I was going to propose a name change based on the entry in the Navy DOD dict. cited in the article, unless someone has a more authoritative ref. Dhaluza 20:58, 23 June 2007 (UTC)

text: Wrong. Currently in use as of 2019, though "deep sound channel" may predominate. For example, United States National Search and Rescue Supplement to the International Aeronautical and Maritime Search and Rescue Manual (May 2000) and Future Force (2019) (Office of Naval Research publication) in "A Revolutionary Relationahip: The Navy and Woods Hole." Palmeira (talk) 13:15, 24 September 2020 (UTC)
thread_title: Rename

message: So, is there actually a deep sound channel in the upper atmosphere? The article isn't very clear about that. —Remember the dot (talk) 05:07, 15 March 2007 (UTC)
thread_title:  Atmosphere channel 

message: The often-cited paper
NTRP_1-02 of the Navy
yields a 404 error.  — Preceding unsigned comment added by 153.96.14.101 (talk) 09:29, 17 July 2012 (UTC)
replies: text: At DTIC:  NTRP 1-02, Navy Supplement to DOD Dictionary of Military and Associated Terms (Edition Jul 2012) (p. 2-22): short definition "deep sound channel (DSC). The main sound channel of the ocean, caused by the negative sound speed gradient of the thermocline and the positive gradient of the deep layer." Note "main" there. There are other sound channels. Also SOFAR: "sound fixing and ranging channel. In underwater acoustics, the deep sound channel with its axis at the bottom of the main thermocline. The name originates from the WWII sound fixing and ranging system designed for locating aviators downed at sea." (My emphasis. SOFAR is still used in that field. Palmeira (talk) 13:54, 24 September 2020 (UTC)
thread_title: Dead link

message: Second paragraph.
http://en.wikipedia.org/wiki/Bullshit
188.134.8.72 (talk) 16:10, 23 January 2013 (UTC)
replies: text: The 2013 paragraph noted as Bullshit was fairly good. By the way, pressure is directly correlated with depth. Density is not, thus the subsurface layers where internal waves are found. The current piece is something of a mess with some inserts that are not cited and meet that BS term. A revision with cites is badly needed. Palmeira (talk) 14:29, 24 September 2020 (UTC)
thread_title:  Linearity of pressure increase with depth 

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thread_title:  External links modified (January 2018)