Eddy flux measurements over the ocean and related transfer coefficients

✍ Scribed by R. J. Francey; J. R. Garratt

• Book ID: 104630370
• Publisher: Springer
• Year: 1978
• Tongue: English
• Weight: 844 KB
• Volume: 14
• Category: Article
• ISSN: 0006-8314
• DOI: 10.1007/bf00122616

✦ Synopsis

Eddy correlation measurements of vertical turbulent fluxes made during AMPEX 1975 are used to assess the reliability of flux prediction from established bulk transfer relations, using both surface-layer and planetary boundary-layer formulations. The surface-layer formulae predict momentum and latent heat fluxes to an accuracy comparable to the direct eddy correlation method, using transfer coefficients of C,, (at 10m and in neutral conditions) increasing with wind speed, and a constant C,, = 1.5 x 10e3. The data suggest C HN, for sensible heat, increases significantly with wind speed and is on average 30% lower than C,, The boundary-layer drag coefficient, COB agrees within about 40% of recently published values using a vertically averaged geostrophic wind to the height of the lowest temperature inversion, corrected for trajectory curvature. Values of O,/AO from which CoH is derived, are in excellent agreement if the published values are modified to account for inappropriate surface temperatures used in their derivation. Preliminary values of C,, are also presented.