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Vertical profiles of dissipation rate are used to study mixing properties within a shallow water region influenced by a coastal jet.
In the upper 10-m layer dissipation rates of the order of e a 10(-6) Wkg(-1) have been measured. Most dissipation results from local production of turbulent kinetic energy, caused by Reynolds stress in the coastal jet. Some high energetic turbulent events are not locally balanced and are most probably advected to the measurement site by the coastal jet.
estimates of the associated eddy diffusivities for locally balanced situations are in the order of K x 10 4) m(2) s(-1). This comparably high value is due to the high level of turbulence throughout the water column and high mixing intensity (ymix= o.22). This feature is clearly related to the coastal jet in its stratified environment. .

Additional information

Authors: ZUELICKE C, University of Rostock, Warnemuende (DE);HAGEN E, University of Rostock, Warnemuende (DE);STIPS A, SAI Ispra (IT)
Bibliographic Reference: Article: Aquatic Sciences Vol 60 No 3
Record Number: 199910374 / Last updated on: 1999-03-12
Original language: en
Available languages: en