Estimating Boundary Layer Fluxes from Shipboard Measurements of Dissipations of Turbulent Kinetic Energy and Temperature Variance.
Abstract
Velocity and temperature fluctuation measurements were made over the open ocean from instruments mounted on the R/V ACANIA. These data were examined to determine the validity of present formulations and prediction techniques. Values of momentum flux, were inferred from the rate of dissipation of turbulent kinetic energy, epsilon. Dissipation values were obtained from spectral estimates and inner scale estimates. The momentum flux, computed from spectra, supported the constant-flux assumption for neutral conditions. For periods of instability, the stability corrections applied to the vertical variation of epsilon resulted in the proper adjustments toward the predicted slope. The shape of a spectrum of temperature fluctuations was in agreement with predictions. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1974
- Accession Number
- AD0776302
Entities
People
- William Edward Johnston
Organizations
- Naval Postgraduate School