Surface Flux Formulations in the Coastal Zone
OREGON STATE UNIV CORVALLIS COLL OF OCEANIC AND ATMOSPHERIC SCIENCES
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Our primary objective is to isolate the influences of wave age andor fetch on the drag coefficient and surface roughness length. This includes examination of the influence of internal boundary layer development on heat and momentum fluxes in the coastal zone, that can lead to large deviations from existing similarity theory. The second main objective is to replace the wave age with more specific wave properties. The final objective is to provide the data sets to other modeling groups. Our initial objectives were realized by first quality-controlling the RASEX data and intercomparing fluxes between different levels. Different estimates of the observed roughness length using the profile method and eddy correlation were compared. Using the observed values of the drag coefficient and roughness height, different existing relationships were tested and new formulations for the transfer coefficients for heat and momentum were developed. The analysis has been extended to a much larger RASEX data set outside the intensive period, which includes a large sample of offshore internal boundary layer cases. The analysis has been applied to the FLIP data set.
- Atmospheric Physics
- Physical and Dynamic Oceanography
- Fluid Mechanics