Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [231111] |
Internal Wave Turbulence Near a Texel Beach
van Haren, H.; Gostiaux, L.; Laan, M.; van Haren, M.; van Haren, E.; Gerringa, L.J.A. (2012). Internal Wave Turbulence Near a Texel Beach. PLoS One 7(3): e32535. dx.doi.org/10.1371/journal.pone.0032535
In: PLoS One. Public Library of Science: San Francisco. ISSN 1932-6203; e-ISSN 1932-6203, meer
|   |
| Auteurs | | Top |
- van Haren, H., meer
- Gostiaux, L.
- Laan, M., meer
|
- van Haren, M.
- van Haren, E.
- Gerringa, L.J.A., meer
|
|
| Abstract |
A summer bather entering a calm sea from the beach may sense alternating warm and cold water. This can be felt when moving forward into the sea ('vertically homogeneous' and 'horizontally different'), but also when standing still between one's feet and body ('vertically different'). On a calm summer-day, an array of high-precision sensors has measured fast temperature-changes up to 1 degrees C near a Texel-island (NL) beach. The measurements show that sensed variations are in fact internal waves, fronts and turbulence, supported in part by vertical stable stratification in density (temperature). Such motions are common in the deep ocean, but generally not in shallow seas where turbulent mixing is expected strong enough to homogenize. The internal beach-waves have amplitudes ten-times larger than those of the small surface wind waves. Quantifying their turbulent mixing gives diffusivity estimates of 10(-4)-10(-3) m(2) s(-1), which are larger than found in open-ocean but smaller than wave breaking above deep sloping topography. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
