Measurements of the velocity-profile in and above a forest of Laminaria hyperborea
Andersen, K.H.; Mork, M.; Nilsen, J.E.Ø. (1996). Measurements of the velocity-profile in and above a forest of Laminaria hyperborea. Sarsia 81: 193-196
In: Sarsia. University of Bergen. Universitetsforlaget: Bergen. ISSN 0036-4827; e-ISSN 1503-1128, meer
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| Auteurs | | Top |
- Andersen, K.H.
- Mork, M.
- Nilsen, J.E.Ø.
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| Abstract |
The aim of this study is to resolve the mechanism of damping of surface waves above bottom vegetation. A field experiment has been carried out, where the horizontal velocities were measured in and above a kelp forest of Laminaria hyperborea (Gunnerus) Foslie, using ultrasonic current-meters. The results from the experiment are presented as periodograms of kinetic energy-density at several levels, and as the correlation of energy at two levels. The main conclusion is that the attenuation extends throughout the whole water column. The long waves exhibit only a slight (5-8 %) reduction of velocity-amplitude within the kelp forest. |
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