dels and
      related software for studying sound propagation in an ocean
      waveguide. Actually, the models have been structured to be
      suitable for general wave propagation problems; however, the ocean
      application is our main focus.</p>
    <p style="font-family: monospace;">The acoustic models in the
      package are:</p>
    <ul style="font-family: monospace;">
      <li><o:p><o:p><a href="kraken.htm">KRAKEN</a> normal mode approach
            <o:p> </o:p></o:p></o:p></li>
      <li><a 