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Concept

Neil Brown MK3 CTD

URI http://vocab.nerc.ac.uk/collection/L22/current/TOOL0002/
Within Vocab SeaVoX Device Catalogue
Alternative Labels Neil Brown MK3 CTD
Definition The Neil Brown MK3 CTD consists of an integral unit containing pressure, temperature and conductivity sensors with an optional dissolved oxygen sensor in a pressure-hardened casing. The most widely used variant in the 1980s and 1990s was the MK3B. The MK3C fitted with an improved pressure sensor to reduce hysteresis was developed to meet the requirements of the WOCE project. The instrument is no longer in production, but is supported (repair and calibration) by General Oceanics.
Date 2010-11-18T12:39:41
Identifier SDN:L22::TOOL0002
Note accepted
Has Current Version 3
Version 1 , 2
version 3
inScheme http://vocab.nerc.ac.uk/scheme/SDNDEV/current/
Broader L19:SDNKG17 sensor_model Mapping: 1696090
L05 SeaDataNet device categories - (4) [+]
L05:130 CTD Mapping: 180422
L05:351 dissolved gas sensors Mapping: 180450
L05:350 salinity sensor Mapping: 180492
L05:134 water temperature sensor Mapping: 180527
Related B75:UNSPEC Unspecified Mapping: 1448420
P01 BODC Parameter Usage Vocabulary - (19) [+]
P01:CPHLPR01 Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >unknown phase] by in-situ chlorophyll fluorometer Mapping: 485477
P01:DOXYPR01 Concentration of oxygen {O2 CAS 7782-44-7} per unit volume of the water body [dissolved plus reactive particulate phase] by in-situ Beckmann probe Mapping: 485471
P01:DEPHPR01 Depth (spatial coordinate) relative to water surface in the water body by profiling pressure sensor and conversion to seawater depth using UNESCO algorithm Mapping: 485475
P01:CNDCZZ01 Electrical conductivity of the water body Mapping: 485481
P01:CNDCST01 Electrical conductivity of the water body by CTD Mapping: 485480
P01:CNDCPR01 Electrical conductivity of the water body by in-situ conductivity cell Mapping: 485476
P01:POTMCV01 Potential temperature of the water body by computation using UNESCO 1983 algorithm Mapping: 485478
P01:PSALPR01 Practical salinity of the water body by conductivity cell and computation using UNESCO 1983 algorithm Mapping: 485472
P01:PSALST01 Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm Mapping: 485479
P01:PSALCC01 Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm and calibration against independent measurements Mapping: 485486
P01:PRESPR01 Pressure (spatial coordinate) exerted by the water body by profiling pressure sensor and correction to read zero at sea level Mapping: 485470
P01:SSALPR01 Salinity of the water body by conductivity cell Mapping: 485474
P01:SSALST01 Salinity of the water body by CTD Mapping: 485482
P01:OXYSBB01 Saturation of oxygen {O2 CAS 7782-44-7} in the water body [dissolved plus reactive particulate phase] by in-situ Beckmann probe and computation from concentration using Benson and Krause algorithm Mapping: 485484
P01:SIGTEQ01 Sigma-theta of the water body by computation from salinity and potential temperature using UNESCO algorithm Mapping: 485483
P01:SIGTPR01 Sigma-theta of the water body by CTD and computation from salinity and potential temperature using UNESCO algorithm Mapping: 485485
P01:TEMPCU01 Temperature of the water body by CTD and no verification against independent measurements Mapping: 485488
P01:TEMPCC01 Temperature of the water body by CTD and verification against independent measurements Mapping: 485487
P01:TEMPST01 Temperature of the water body by CTD or STD Mapping: 485473

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