Accession Number : AD0777405

Title :   Separating Turbulent and Wave-Induced Velocity and Temperature Fluctuations,


Personal Author(s) : Thornton,Edward B. ; Boston,Noel E. J.

Report Date : DEC 1973

Pagination or Media Count : 49

Abstract : A means is demonstrated for separating turbulent and surface wave-induced vertical velocity spectral components allowing for the quantities to be statistically correlated. The method is applied to wave and velocity measurements made from the NUC tower located off Mission Beach, California. The velocity measurements were made using a two-component electromagnetic flow meter. The wave energy-density spectral components are converted to velocity spectral components using linear wave theory. A stochastic model of surface wave-induced temperature fluctuations is derived assuming the temperature isotherms are horizontal and the mean temperature gradient constant. Linear wave theory is used to describe the waves. Using this model, a means for separating turbulent and surface wave-induced temperature fluctuations is demonstrated. The spectral measurements of temperatures, waves, and velocities are used to apply the methods developed. (Modified author abstract)

Descriptors :   *Ocean waves, *Temperature, Variations, Linearity

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE