Talk:Thermohaline circulation

message: "The thermohaline circulation is sometimes called the ocean conveyor belt, the great ocean conveyer, the global conveyor belt, or, most commonly, the meridional overturning circulation (often abbreviated as MOC)." 
Rahmstorf, S., Thermohaline Ocean Circulation, Encyclopedia of 	Quaternary Sciences, S. A. Elias Elsevier, Amsterdam 2006. 
The MOC is related to the THC but is not the THC. The MOC is at least partially wind driven as opposed to being due to temperature and salinity differences alone.
Conveyor belt is obsolete:  Lfstevens (talk) 23:24, 11 December 2011 (UTC)
thread_title:  MOC 

message: That one was clearly done in MS Paint.  Come on, folks. - Darkhawk
This is sourced from an h2g2 article I started writing a while ago, so it needs some work: style, wikification, and gaps filling [also references need page numbers]. It may also be better to split some of this into separate articles e.g. water mass properties. Comments? Tonderai 16:38, 4 Dec 2003 (UTC)
thread_title: Better Diagram?

message: I think this  pushes the balance too far the other way William M. Connolley 09:45, 20 April 2007 (UTC)
replies: text: Hi.  I think you might mean the previous edit; that one only adds a weblink for the extra reference.  Regarding said earlier edit, I was concerned that the study that suggested Europe wasn't warmed by the THC wasn't actually a study; it was a popular review.  I wasn't sure if I should -tag it or something for a better reference, so I altered the language instead (it sounded like it was overstating things anyway).  This has possibly made things more ambiguous however.  The second part of my edit cleared up a chronology problem: the second reference was supposed to be criticising the first, but was actually published before it.  I reworded to try to make more sense while retaining the same reference.  Anyway, I'm not wedded to the changes at all, but if the text has to revert, I'd prefer a much stronger cite in support of the proposition.  It's not really my area of expertise, but I as an oceanographer I routinely hear people describing the THC's northward heat transport as being at least partially responsible for Europe's warmer climate (of course, maybe they're all wrong - I'm no physicist!).  Cheers, --Plumbago 10:21, 20 April 2007 (UTC)
replies: text:  OK, I probably meant . But there is a Seager et al paper in QJRMS on the same issue that should be referenced. No need for reverting - its more a matter of needing more tweaking I think. And anyway its not the THC is the North Atlantic Drift William M. Connolley 11:34, 20 April 2007 (UTC)

text: A cycle slowdown would cause arctic cooling, which would causes increased freezing, which would increase salinity fix the cycle... increasing density... perhaps so far as to speed up the cycle.  This feedback can keep the balance.  Or it can cause seasonal thrashing with very hot summers and very cold winters every XXX years.   These "waves" of hot/cold cycles could also, occasionally, interact and have extreme effects.  Call this "thermohaline cycle thrash" 71.111.198.84 (talk) 14:21, 11 January 2010 (UTC)
thread_title:  Effect on Europe? 

message: Slightly unconvinced by . I have a feeling LA was supposed to be gone by 8.2kyr, but I'm not sure William M. Connolley (talk) 20:51, 28 April 2008 (UTC)
replies: text: No, remnants of Lake Agassiz / the Laurentide Ice Sheet probably persisted till ~8ka.  It's a common hypothesis that the 8.2 ka event was associated with the last major emptying of Agassiz, though its not the only hypothesis for the 8.2 event.  Dragons flight (talk) 22:27, 28 April 2008 (UTC)
thread_title:  Greenland / Agassiz 

message: Shouldn't this be moved to meridional overturning circulation, as that's the more accurate term? Andrewjlockley (talk) 00:41, 31 March 2009 (UTC)
replies: text: Yes, it should be. It would require a bit of fixes to the language and images as well (to de-emphasize the term thermohaline circulation), but it should definitely be moved. Does anyone object to it being moved? Aleph-seven (talk) 06:30, 18 June 2010 (UTC)
replies: text:  Not if we believe The term thermohaline circulation (THC) refers to the part of the large-scale ocean circulation that is driven by global density gradients created by surface heat and freshwater fluxes William M. Connolley (talk) 08:32, 18 June 2010 (UTC)
replies: text: I'm with William — the term THC should be preferred both as one that is in common use, and one whose name describes a central aspect of it.  --PLUMBAGO 08:44, 18 June 2010 (UTC)
replies: text: MOC and THC are not the same. The MOC has a wind-driven component whereas the THC is by definition the density-driven part of the circulation. Basically MOC is a geographical descriptor and THC is a process. We should have articles on both, or have a single article that makes the distinction clear. Short Brigade Harvester Boris (talk) 05:11, 22 June 2010 (UTC)

text: Almost all of this article is about the MOC, not the THC. The first paragraph discusses wind driven circulation, the side diagram shows the global conveyor system (the MOC), etc. I can see an argument for having an article about the THC, but most of this article should be the article about the MOC. Aleph-seven (talk) 08:59, 28 July 2010 (UTC)
thread_title:  Move? 

message: “This confirms suspicions that have been around since the 1990’s, and likely plays havoc with global models of climate change. The findings by Drs. Amy Bower of Wood’s Hole and Susan Lozier of Duke University et al. are published in a forthcoming issue of Nature.”
  —Preceding unsigned comment added by Yayay (talk • contribs) 17:39, 15 May 2009 (UTC)
replies: text: Um. Its a blog. And it says The implications would be for more cold, oxygenated water along the Mid-Atlantic Ridge, but I’m just making that last part up William M. Connolley (talk) 22:18, 15 May 2009 (UTC)
replies: text: Maybe correponding Nature article would be more interesting but I don't have access. Nature article YayaY (talk) 02:27, 16 May 2009 (UTC)
thread_title:  Deep Ocean Conveyor Belt Reconsidered 

message: A few points seem to be inadequately dealt with. Some may be easy to fix, but some would seem to require expert assistance:
* History: The piece links to the Younger Dryas, but somehow never uses the phrase "ice age" or mentions the role played by the THC in abrupt climate change. Similarly, the more recent little ice age mentioned in the Shutdown article doesn't seem to be brought up at all here.
* Deep history: What caused the initial formation of the current cycle? Has anyone studied precusors? Did a similar system arise during earlier periods?
* Future: Shutdown of thermohaline circulation warrants a brief summary here, and some of the points requested above should be expanded upon there as well.
The current three sentences dropped into the very end of the piece seem out of place and grossly inadequate: Anyone feel comfortable expanding them to answer the questions above? MrZaiustalk 03:57, 11 November 2009 (UTC)
replies: text: Strangely enough, two hours after I posted this I happened to be watching British Isles: A Natural History, and the third episode says that an older ice age was triggered by a moving THC when the landbridge joining the Americas came into being. Showed a map that had the circulation flowing through a sea where the Isthmus of Panama is now, and then being redirected to the North Atlantic. Where can we find more reasonable, detailed sources discussing that change and others like it?. Would be nice to have a good deal more coverage of changes in the THC. MrZaiustalk 05:35, 11 November 2009 (UTC)
thread_title:  History? 

message: Lead
:While the bulk of it upwells in the Southern Ocean, the oldest waters (with a transit time of around 1600 years) upwell in the North Pacific...  Ummm...  Where is the Southern Ocean upwelling documented?
Movement of thermohaline circulation
:At the Indian Ocean, some of the cold and salty water from the Atlantic — drawn by the flow of warmer and fresher upper ocean water from the tropical Pacific — causes a vertical exchange of dense, sinking water with lighter water above....
:This generates a large but slow flow of warmer and fresher upper ocean water from the tropical Pacific to the Indian Ocean through the Indonesian Archipelago to replace the cold and salty Antarctic Bottom Water.  This sentence -- actually the entire third para -- needs a rewrite to bring it into line with the summary image.
Upwelling
:Computer models of ocean circulation increasingly place most of the deep upwelling in the Southern Ocean, associated with the strong winds in the open latitudes between South America and Antarctica.  Ummm...  Where is the Southern Ocean upwelling documented?
All of these are simply not present in the image Thermohaline_Circulation_2.  While I do not regard a simple diagram as definitive documentation, the absence of the described features is grounds for suspicion that somebody may have misread the journals used to source the article.  122.200.166.186 (talk) 13:15, 23 April 2011 (UTC)
thread_title:  Non-sequiturs and other blunders 

message: Is this copied from http://martinfrost.ws/htmlfiles/aug2007/thermohaline.html or the other way around?  — Preceding unsigned comment added by Fulldecent (talk • contribs) 13:08, 27 August 2014 (UTC)
thread_title:  Copied 

message: The world bullshitting existed instead of shifting on line 61 of the article. I removed it last week anonymously. My change was reverted. I have removed it again. Change was reverted again. I give up, keep the curse word in the article. I tried to fixed it.   — Preceding unsigned comment added by Valarauca (talk • contribs) 15:44, 2 September 2014 (UTC)
thread_title:  Removed the word bullshitting 

message: What is the relationship between all these currents?  Is the AMOC and the Gulf Stream the same thing, with "gulf stream" just being a "layperson-name", or is it something completely (or somewhat) different? Jimw338 (talk) 16:53, 9 January 2017 (UTC)
thread_title:  Relationship of THC, (A)MOC, and Gulf Stream? 

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thread_title:  External links modified 

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thread_title:  External links modified (January 2018) 

message: Hello. I had to remove several references as they were citing a copyvio from Oceanography: An Invitation to Marine Science. After removal, I saw that several citations were left over without any prose as they were citing the copyvio. To prevent them from being lost in the edit history, i've left them here in case someone wants to add information from them without copyvios:
*
*
--MrLinkinPark333 (talk) 02:10, 7 December 2020 (UTC)
thread_title:  References citing a copyvio  

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thread_title:  Copyright problem removed 

message: I've just made some small changes to make it clearer how AMOC and THC are related and in an attempt to try to reduce overlap between the two articles. This is based on advice by Tim Jickells who wrote to me: "It seems  like both terms are used almost interchangeably, even though the A in AMOC refers to the Atlantic. The UK Met Office climate change pages refer to AMOC, but perhaps they inevitably focus on the Atlantic particularly. I see there are wikis on both terms and they do seem to cross link the two terms, so I think generally using a phrase like “the Atlantic Meridional Ocerturning circulation (AMOC) which is part of a global thermoholine circulation (THC)” somewhere in the text is the simplest way to handle this.". I think there is probably potential to reduce overlap between the two articles further but would need to think further about this. EMsmile (talk) 12:24, 24 October 2022 (UTC)
thread_title:  Clarifying the connection with AMOC and with the shutdown 

message: Change the link text in "imagined spatially but rather in a T-S-diagram" to 'temperature-salinity diagram' to make the article easier to understand. Brh418 (talk) 03:40, 2 June 2023 (UTC)
thread_title:  Re-label hyperlink for reduced jargon 

message: One a major concern from this article:
"The slowdown or shutdown of the thermohaline circulation is a hypothesized effect of climate change on a major ocean circulation...
a decline would also be accompanied by strong sea level rise along the North American coast."  GeoVenturing (talk) 12:16, 2 June 2023 (UTC)
thread_title:  USGS: Sea Level Rise in Melting Glaciers: 263’ @CassandrsasGhost