Internal waves are responsible for the bulk of the diffusive mixing in the deep ocean, with implications for the rate of downward penetration of heat and carbon dioxide, as well as for the structure of the meridional overturning circulation. And yet global ocean models are far from being able to simulate the full internal wave spectrum. A new observational program, SQUID (Sampling QUantitative Internal-wave Distributions), aims to improve the broad-scale characterization of internal wave climates through global deployments of autonomous profiling floats measuring shear, strain, and turbulent mixing (using a burst-sampling approach to separate internal waves from low-frequency motions). At the same time, SQUID is compiling and sharing past datasets from velocity profiling floats and, along with other teams in the new NOPP Global Internal Waves initiative, working to transition observational results into model validation metrics and subgrid-scale mixing parameterizations.
Zoom link: https://icts-res-in.zoom.us/j/97238947221?pwd=YmRXcjdDbFIwVDREQS9HdkpFdzFxUT09
Meeting ID: 972 3894 7221
Passcode: 203040