RV CIRLANA 7B/1993: Low-Resolution CTD Profiles from the European Shelf

Conductivity-Temperature-Depth (CTD) data collected from CEFAS research vessel cruises. The data broadly cover the European Shelf and the Iberian Abyssal Plain, with profiles taken from the surface to near the seabed. The data were collected using a lowered CTD rosette system, with water samples taken for calibration.

Use Cases

• Calculate salinity from conductivity data based on the UNESCO 1978/1983 formulations mentioned in the description.
• Analyze vertical profiles of temperature and pressure (depth) for water column structure.
• Study temporal changes in basic oceanographic parameters from early cruises with limited sensor sets.
• Investigate correlations between fluorescence, optical backscatter, or light (PAR) data and biological activity in later cruises.

Strengths

• Data includes core oceanographic parameters: Pressure (Depth), Temperature, and Conductivity.
• Describes a standardized collection method using a lowered CTD rosette system on stationary vessels.
• Later cruises include additional sensors like fluorometers and transmissometers, expanding parameter coverage.

Limitations

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

Provenance

Source

CEFAS (Centre for Environment, Fisheries & Aquaculture Science) research cruises.

Collection Method

Collected using a lowered CTD rosette system while the research vessel was stationary.

Time Range

Cruises from 1993 and subsequent years.

Freshness

Last updated date is unknown.

Geography

Broadly covers the European Shelf, with some data from the Iberian Abyssal Plain.