Buoyancy‐Driven Rotating Boundary Currents a

  title={Buoyancy‐Driven Rotating Boundary Currents a},
  author={Philip A. Yecko and Stephen P. Meacham},
  journal={Annals of the New York Academy of Sciences},
  • P. Yecko, S. Meacham
  • Published 27 July 1997
  • Physics, Environmental Science
  • Annals of the New York Academy of Sciences
Abstract: The structure of boundary currents formed from intermediately dense water introduced into a rotating, stably stratified, two‐layer environment is investigated in a series of laboratory experiments, performed for Froude numbers ranging from 0.01 to 1. The thickness and streamwise velocity profiles in quasi‐steady currents are measured and found to agree with analytic solutions and numerical models. A sloping boundary in a stratified background results in robust stability at all… 
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J. Fluid Mech
  • J. Fluid Mech
  • 1986
J. Fluid Mech. J. Fluid Mech
  • J. Fluid Mech. J. Fluid Mech
  • 1984