The Heat and Salt Balances of the Upper Ocean Beneath a Spatially Variable Melting Sea Ice Cover
WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB
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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 .
- Physical and Dynamic Oceanography
- Fluid Mechanics