Instrument: EPSONDE

An EPSONDE is a tethered free-fall profiling system used to obtain temperature microstructure and velocity turbulence data in the water column. The EPSONDE profiler carries a variety of slow and fast sensors for measuring temperature microstructure, velocity microstructure, conductivity and depth. These data yield turbulent kinetic energy dissipation rates and temperature variance dissipation rates as well as derived quantities such as turbulent diffusivity.