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Deep vs shallow SPORTS diving... which is safer?

Discussion in 'Ask Dr. Decompression' started by Dennis Guichard, Oct 7, 2018.

  1. boulderjohn

    boulderjohn Technical Instructor ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Boulder, CO
    I think it is important to recognize that the terms deep, shallow, short, and long are all relative. The OP asked the question in terms of recreational diving, and there is a world of difference between a deep recreational dive (100 feet) and a deep technical dive (300 feet).
  2. Duke Dive Medicine

    Duke Dive Medicine ScubaBoard Supporter Staff Member ScubaBoard Supporter

    I see what you're saying. By model I meant the probabilistic model that was used, the way that the pDCS for the plots was derived. It's based on the data from hundreds of actual dives, with outcomes (+ or - DCS). We tested six decompression algorithms IIRC. We plugged a series of depths and bottom times into the decompression software, it gave us deco profiles, we sent that data to Keith Gault at the U.S. Naval Experimental Diving Unit and he plugged it into the modeling software.
    Dennis Guichard likes this.

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