Hydrodynamic control of sediment-water fluxes

Combined in situ measurements of bottom boundary-layer turbulence and the diffusive oxygen fluxes at the sediment water interface were conducted in a medium-sized lake. The internal seiche driven periodic forcing produced an oscillatory boundary layer featuring distinct deviations from steady-state law-of-the-wall theory such as a pronounced phase lag between the current velocity and the turbulent dissipation of 1.5 hours. The oxygen flux into the sediment was controlled by a diffusive boundary layer, whose thickness was strongly affected by the periodic bottom boundary layer turbulence.


Editor(s):
Jirka, G. H.
Uijttewaal, W. S. J.
Published in:
Shallow Flows, 497-501
Year:
2004
Publisher:
Taylor & Francis Group
Keywords:
Note:
03958; 462 KB
Laboratories:




 Record created 2013-06-28, last modified 2018-03-17


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