Relationship Between the Sonic Layer Depth and Mixed Layer Depth Identified from U.S. Navy Sea Glider Data

Abstract

The mixed layer depth (MLD) represents the upper ocean mixing, and the sonic layer depth (SLD) reveals the capacity of the upper ocean to trap acoustic energy and create a surface duct. A set of sea glider date from the Naval Oceanographic Office is used to identify the MLD and SLD at five locations. The maximum angle method is found to be the best among 17 existing MLD determination schemes of the four major methods (difference, gradient, curvature, and maximum angle). The maximum angle method is also found better than the currently used maximum value method in determining SLD. The optimally determined MLD and SLD by the maximum angle method from the Navy s glider data shows that one can swiftly, accurately, and objectively determine the MLD and SLD for operations in seas around the world.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2014
Accession Number
ADA620640

Entities

People

  • Vance A. Villarreal

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Autonomy
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Antisubmarine Warfare
  • Autonomous Vehicles
  • Curvature
  • Data Sets
  • Measurement
  • Naval Operations
  • Navy
  • Oceanography
  • Oceans
  • Pacific Ocean
  • Submarine Warfare
  • Underwater Gliders
  • Underwater Vehicles
  • United States
  • United States Naval Academy
  • Unmanned Underwater Vehicles
  • Vehicles

Readers

  • Combustion and Flow Dynamics.
  • Oceanography.
  • Systems Analysis and Design

Technology Areas

  • Autonomy