Authors
Cynthia Bluteau, Nicole Jones, Gregory Ivey
Publication date
2016/8/29
Journal
International Symposium on Stratified Flows
Volume
1
Issue
1
Description
We present mixing observations from the Australian North West Shelf, where large semidiurnal tides, and shoaling nonlinear internal waves are generated offshore at the shelf-break. Around 30 moorings were deployed for about three weeks in April 2012 over several hundreds of kilometres, clustered around four nodes. We focus here on the near-bed turbulence and mean observations collected from one of the nodes where a 35-m long mooring (BUBS) was deployed in 105 m of water. The BUBS mooring was instrumented with mean velocity, temperature and conductivity sensors to derive the local mean shear S and stratification N. Turbulence observations were also obtained from more than 300 vertical microstructure shear profiles (VMP-500, Rockland Scientific) collected across the region. Our goal was to determine the intensity of the mixing, particularly during the passage of nonlinear internal waves, and to ultimately assess various mixing models.
Scholar articles
C Bluteau, N Jones, G Ivey - International Symposium on Stratified Flows, 2016