RV CIRLANA 9B/1993 CTD Data from the European Shelf

CEFAS research cruises collected this Conductivity-Temperature-Depth (CTD) data from the European Shelf and Iberian Abyssal Plain. Data were gathered using a lowered CTD rosette system while vessels were stationary, with water samples taken for calibration. The parameters collected likely include pressure, temperature, and conductivity, with salinity derivable from the latter.

Use Cases

• Calculate water salinity based on conductivity data using UNESCO formulations.
• Analyze vertical ocean profiles for temperature and pressure structure.
• Calibrate sensor readings using the water bottle samples mentioned in the description.
• Study biogeochemical indicators using later-added sensors like fluorometers and PAR meters.

Strengths

• Data collection method is explicitly described as using a lowered CTD rosette system for clean down-cast profiles.
• Coverage includes the European Shelf and the Iberian Abyssal Plain.
• The description notes the evolution of sensor suites over time, adding parameters like fluorescence and optical backscatter.

Limitations

• Row count, file formats, and column-level documentation are unknown.
• Last update date is unknown; freshness unverified.
• The exact data format and sensor configuration vary between cruises, requiring inspection.

Provenance

Source

Government Digital Service (via CEFAS/DFR research cruises)

Collection Method

Collected from research vessels using a lowered CTD rosette system, with water bottle samples for calibration.

Time Range

Data from the 1993 cruise is specified, but the overall temporal range is not provided.

Freshness

Last updated date is unknown.

Geography

European Shelf and Iberian Abyssal Plain.