Share this on:
About this iReport
  • Not verified by CNN

  • Click to view AndrewSoper's profile
    Posted April 11, 2014 by
    This iReport is part of an assignment:
    Malaysia Airlines Flight 370

    More from AndrewSoper

    Flight MH 370

    Further to my suggestions about the "positions" published by JAC I understand that sound signals may be reflected from the ocean surface or warm-cooler water interfaces thus allowing the TPL to receive signals at greater distances. In other words the scatter in the positions as reported by JAC is not surprising.

    The range of 2 miles for the TPL is probably for a pinger and TPL in a homogenous water body. The sound would attenuate according to the square of the distance from the source. With inhomogeneous water characteristics the wavefront may become linear (not circular) and travel much further without major loss of intensity. Such phenomena are known as thermoclines.

    Let me know if you would like some graphics. If you find my comments interesting I suggest that you run them past people involved in deploying underwater instrumentation (current meters). Woods Hole would be the perfect place to start.

    • TAGS:

    • GROUPS:

    What do you think of this story?

    Select one of the options below. Your feedback will help tell CNN producers what to do with this iReport. If you'd like, you can explain your choice in the comments below.
    Be and editor! Choose an option below:
      Awesome! Put this on TV! Almost! Needs work. This submission violates iReport's community guidelines.


    Log in to comment

    iReport welcomes a lively discussion, so comments on iReports are not pre-screened before they post. See the iReport community guidelines for details about content that is not welcome on iReport.

    Add your Story Add your Story