Concept
Rockland Scientific Vertical Microstructure Profiler (VMP) 5500
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL0639/1/ | |
|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | |
| Alternative Labels | VMP 5500 | |
| 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 5500 m depth. The instrument is fitted with pressure, temperature (SBE-3F) and conductivity (SBE-4C) sensors, three acceleration sensors, a PC104 computer data acquisition and communication system, anti-aliasing filters and a standard suite of microstructure sensors which includes two SPM-38-5 velocity shear probes, two FP07-38-5 fast thermistors and an optional microstructure conductivity probe (SBE7). 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. The VMP 5500 has a strobe light and a radio beacon and can also be fitted with an Argos transmitter for locating purposes. The instrument was replaced by the VMP 6000 in 2010. | |
| Date | None | |
| Identifier | TOOL0639 | |
| Note | accepted | |
| Is Version Of | TOOL0639 | |
| version | 1 | |
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