Rockland Scientific Vertical Microstructure Profiler (VMP) 6000
|Within Vocab||SeaVoX Device Catalogue|
|Preferred Label||Rockland Scientific Vertical Microstructure Profiler (VMP) 6000|
|Definition||A full ocean-depth untethered vertical microstructure turbulence profiler for the measurement of dissipation-scale turbulence along with fine-scale temperature and conductivity for up to 6000 m depth. The instrument is fitted with pressure, temperature (SBE-3F) and conductivity (SBE-4C) sensors, three high grade accelerometers, an internal data acquisition system with 1 Gb solid state disk (Linux OS), and a standard suite of up to 6 microstructure turbulence sensors in any combination of SPM-38-5 velocity shear probes, FP07-38-5 fast thermistors or optional SBE7 microstructure conductivity probes. There is also a geo-electro magnetic current meter for fine-scale shear measurements. The instrument has an aluminium frame with syntactic foam attached for flotation. Data is collected on the downcast and after reaching a pre-defined depth the profiler releases ballast weights so that the instrument becomes positively buoyant. As back-up there is a triple redundancy emergency ballast release system. The VMP 6000 has an RF beacon, ARGO transmitter and Xenon flasher attached for locating purposes. This instrument replaced the VMP 5500 in 2010.|
|Alternative Label||VMP 6000|
|Is Version Of||http://vocab.nerc.ac.uk/collection/L22/current/TOOL1150/|
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