AMT13 data from CTD rig sensors at bottle firing depths taken from the quality controlled down-cast
Instrumentation Description
Details can be found in the AMT13 CTD instrumentation document .
BODC Data Processing Procedures
As part of the post-cruise processing of the CTD profiles, data from each sensor at bottle firing on the quality controlled and calibrated down-cast were extracted to the database for each bottle through a BODC Matlab routine. The AMT13 CTD processing document should be consulted in conjuction with this data for a full description of processing, screening and calibration steps.
A parameter description table is provided below;
| Description | BODC Parameter Code | Units | Comments |
|---|---|---|---|
| Attenuance (red light wavelength) per unit length of the water body by 25cm path length transmissometer | ATTNDR01 | m -1 | n/a |
| Concentration of chlorophyll-a {chl-a} per unit volume of the water body [particulate phase] by in-situ chlorophyll fluorometer and manufacturer's calibration applied | CPHLPM01 | mg m -3 | n/a |
| Concentration of chlorophyll-a {chl-a} per unit volume of the water body [particulate phase] by in-situ chlorophyll fluorometer and calibration against sample data | CPHLPS01 | mg m -3 | n/a |
| Concentration of oxygen {O 2 } per unit volume of the water body [dissolved phase] by Sea-Bird SBE 43 sensor and calibration against sample data | DOXYSC01 | µmol l -1 | n/a |
| Concentration of oxygen {O 2 } per unit volume of the water body [dissolved phase] by Sea-Bird SBE 43 sensor and no calibration against sample data | DOXYSU01 | µmol l -1 | n/a |
| Downwelling 2-pi scalar irradiance as photons (PAR wavelengths) in the water body by 2-pi scalar radiometer | IRRDPP01 | µE m -2 s -1 | n/a |
| Upwelling 2-pi scalar irradiance as photons (PAR wavelengths) in the water body by 2-pi scalar radiometer | IRRUPP01 | µE m -2 s -1 | n/a |
| Instrument output (voltage) by PML/Chelsea Instruments 2-pi PAR downwelling light meter | LVLTPD01 | V | n/a |
| Instrument output (voltage) by PML/Chelsea Instruments 2-pi PAR upwelling light meter | LVLTPU01 | V | n/a |
| Instrument output (voltage) by SeaTech light backscatter nephelometer (LBSS) | NVLTST01 | V | n/a |
| Saturation of oxygen {O 2 } in the water body [dissolved phase] by Sea-Bird SBE 43 sensor and calibration against sample data and computation from concentration using Benson and Krause algorithm | OXYSSC01 | Percent | n/a |
| Potential temperature of the water body by computation using UNESCO 1983 algorithm | POTMCV01 | o C | n/a |
| Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm and calibration against independent measurements | PSALCC01 | Dimensionless | n/a |
| Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm and calibration against independent measurements | PSALCC02 | Dimensionless | n/a |
| Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm and NO calibration against independent measurements | PSALCU01 | Dimensionless | n/a |
| Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm and NO calibration against independent measurements | PSALCU02 | Dimensionless | n/a |
| Sigma-theta of the water body by CTD and computation from salinity and potential temperature using UNESCO algorithm | SIGTPR01 | kg m -3 | n/a |
| Temperature of the water body by CTD and NO verification against independent measurements | TEMPCU01 | o C | n/a |
| Temperature of the water body by CTD and NO verification against independent measurements | TEMPCU02 | o C | n/a |
| Instrument output (voltage) by 25cm path length red light transmissometer | TVLTDR01 | V | n/a |
Problem Report
See AMT13 problem report documentation.
