Definitions

from The American HeritageĀ® Dictionary of the English Language, 4th Edition

  • n. A layer in a large body of water, such as a lake, that sharply separates regions differing in temperature, so that the temperature gradient across the layer is abrupt.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A layer within a body of water or air where the temperature changes rapidly with depth.

from The Century Dictionary and Cyclopedia

  • n. A layer within a large body of water sharply separating portions of it which differ in temperature, so that the temperature-gradient through the layer is very abrupt.

Etymologies

thermo- + -cline (Wiktionary)

Examples

  • In between the two layers, there is a narrow zone called the thermocline where the temperature of the water changes rapidly.

    Freshwater biomes

  • The thin yellow line is probably the thermocline, which is the place where the warm water and cold water meet.

    Road Map #3 « Climate Audit

  • The ocean is not really one ocean, but two -- a top and bottom layer, with a boundary layer approximately one kilometer below the ocean surface, called the thermocline, through which very little vertical transport takes place.

    Analog Science Fiction and Fact

  • The thermocline was a tricky bitch, one that worked both for you and against you, Pencehaven reflected.

    Joint Operations

  • Coccolithophore blooms often develop during the summer when a blanket of water called the thermocline develops between the upper mixed layer above and the deep water below.

    R&D Mag - News

  • The thermocline is the layer of increasingly colder water that separates the warmer surface layer from the colder deep water.

    post-gazette.com - News

  • When deployed in the open ocean, the tube would hang vertically, descending through the warm, well-mixed upper reaches of the ocean and terminating in a deeper part of the water column known as the thermocline, where water temperatures drop precipitously.

    Scientific American

  • a blanket of water called the thermocline develops between the upper mixed layer above and the deep water below.

    PhysOrg.com - latest science and technology news stories

  • If you are fishing for kings, fish where the thermocline hits bottom because that is where the elewives will be.

    Whats the best lure and depth for trolling in Lake Michigan right now?

  • Summer they run a little deeper and larger bait or live bait. fall they hang around the thermocline depends on the lake how deep it is usually between 10 and 20 ft.

    What dates are the best time for catching Brook Trout in Maine???

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Comments

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  • It is a good book, yarb. Particularly if you're interested in commercial fishing.

    ... that sounded really odd.

    August 20, 2009

  • Oh, the book is far better than the movie. I had the same reaction (read the book first) when I saw it--why did they bother? As I recall, I was disappointed by the fact that the movie included so much romantic drivel and so little about the event that caused the author to write the book in the first place.

    August 20, 2009

  • I can't stand the movie - partly because it's a lame movie and partly because I've seen it about a dozen times - but I'm enjoying the book extracts and might take a gander at it one day.

    August 20, 2009

  • I saw the movie in the theaters, ages ago. Just read the book. Actually finished it some days ago, just haven't had much time to add words.

    It's a good book. I think they might have been nuts to try to make a movie out of it. Perhaps I'll have to see it again to be sure as I don't remember much about it. Naturally I learned far more from the book than from the movie, but that's to be expected.

    August 20, 2009

  • How are you liking this book, c_b? I enjoyed it, but don't bother seeing the movie version (unless it's too late).

    August 20, 2009

  • "Fish are not distributed equally throughout the water column; they congregate in certain areas. You have to know where those areas are. You generally set westward into the current. With a thermocline scope you get temperature readings at different depths; with a Doppler you get the velocity and direction of subsurface currents at three different levels...."
    ā€”Sebastian Junger, The Perfect Storm, 1997 (NY: HarperCollins, 1999), 57

    August 19, 2009