Skip to main content

IMIS

A new integrated search interface will become available in the next phase of marineinfo.org.
For the time being, please use IMIS to search available data

 

[ report an error in this record ]basket (0): add | show Print this page

Turbulent convection and high‐frequency internal wave details in 1‐m shallow waters
van Haren, H. (2019). Turbulent convection and high‐frequency internal wave details in 1‐m shallow waters. Limnol. Oceanogr. 64(3): 1323-1332. https://dx.doi.org/10.1002/lno.11118
In: Limnology and Oceanography. American Society of Limnology and Oceanography: Waco, Tex., etc. ISSN 0024-3590; e-ISSN 1939-5590, more
Peer reviewed article  

Available in  Author 

Author  Top 

Abstract
    Vertically 0.042‐m‐spaced moored high‐resolution temperature sensors are used for detailed internal wave‐turbulence monitoring near Texel North Sea and Wadden Sea beaches on calm summer days. In the maximum 2‐m deep waters, irregular internal waves are observed supported by the density stratification during day‐times’ warming in early summer, outside the breaking zone of < 0.2 m surface wind waves. Internal‐wave–induced convective overturning near the surface and shear‐driven turbulence near the bottom are observed in addition to near‐bottom convective overturning due to heating from below. Small turbulent overturns have durations of 5–20 s, close to the surface wave period and about one third to one tenth of the shortest internal wave period. The largest turbulence dissipation rates are estimated to be of the same order of magnitude as found above deep‐ocean seamounts, whereas overturning scales are observed 100 times smaller. The turbulence inertial subrange is observed to link between the internal and surface wave spectral bands.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Author