Simultaneous Direct Heat and Carbon Dioxide Flux Measurements at a Turbulent Free Surface
Abstract
We report measurements of the scalar flux field at an air-water interface. The cleaned free surface is subjected to turbulent forcing from below, generated with extremely low mean flow, thus the surface is not subjected to mean shear. The velocity field and temperature fluctuations are resolved in the plane of the free surface from high resolution infrared imagery. Simultaneous measurements in a plane orthogonal to, and intersecting, this area show the velocity field as well as the concentration field resulting from invasion of Carbon Dioxide gas across the free surface. These simultaneous measurements allow us to investigate the spatial and temporal structure of turbulent flux at and near the free surface.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2006
- Bibcode:
- 2006AGUFMOS41A0569V
- Keywords:
-
- 0312 Air/sea constituent fluxes (3339;
- 4504);
- 3339 Ocean/atmosphere interactions (0312;
- 4504);
- 3379 Turbulence (4490);
- 4247 Marine meteorology;
- 4504 Air/sea interactions (0312;
- 3339)