The Heat and Salt Balances of the Upper Ocean Beneath a Spatially Variable Melting Sea Ice Cover

Abstract

The aim of this study is to paint a picture of the evolution of the horizontally variable ice-ocean boundary layer throughout summer. Observations were made during the drifting Surface HEat Balance of the Arctic (SHEBA) experiment in the summer of 1998, The ice-ocean boundary layer near leads is studied with an Autonomous Underwater Vehicle (AUV) and a novel technique to use vehicle motion data to calculate turbulent vertical water velocity along the vehicle path. Vertical fluxes are obtained and extend from the energy-containing wave number range and continue into the inertial subrange. This study is the first to measure horizontal profiles of turbulent fluxes in the ice-ocean boundary layer. AUV data are used in conjunction with: fixed-mast turbulent fluxes at discrete levels in the boundary layer, Conductivity-Temperature-Depth data (vertical casts and lead surveys), and a suite of measurements made by other investigators. 1+ %A%+ +%%+ ,,%A +%% %.%%

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2003
Accession Number
ADA422484

Entities

People

  • Daniel R. Hayes

Organizations

  • University of Washington

Tags

Communities of Interest

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

DTIC Thesaurus Topics

  • Autonomous Underwater Vehicles
  • Birds
  • Boundary Layer
  • Climate Change
  • Energy Transfer
  • Froude Number
  • Heat Balance
  • Heat Energy
  • Oceanography
  • Physics Laboratories
  • Ridges
  • Stratified Fluids
  • Surface Properties
  • Thermodynamics
  • Three Dimensional
  • Topography
  • Two Dimensional

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Mechanics and Fluid Dynamics.
  • Polar and Arctic Studies