RV CLIONE 04/1985 Low Resolution CTD Data from the European Shelf

Research vessel data collected by CEFAS (or DFR) using a lowered CTD rosette system while the vessel was stationary. The data broadly cover the European Shelf and the Iberian Abyssal Plain, with profiles from the surface to near the sea bed. Early years likely contain core parameters like pressure, temperature, and conductivity, while later cruises may include additional sensors such as fluorometers.

Use Cases

• Calculate salinity profiles based on conductivity, temperature, and pressure data using UNESCO formulations.
• Analyze vertical water column structure based on down cast CTD profiles.
• Calibrate sensor readings using water sample data collected from bottles fired on the up cast.
• Study temporal changes in marine parameters by comparing data from different research cruises.

Strengths

• Data collection follows a standardized methodology using a lowered CTD rosette system on research vessels.
• The description specifies the geographic coverage of the European Shelf and Iberian Abyssal Plain.
• The methodology describes a clean down cast profile and calibration samples from the up cast.

Limitations

• Row count, file formats, and column-level documentation are unknown, requiring manual inspection after download.
• The exact sensor configuration and available parameters vary between cruises, as noted in the description.
• Last update date is unknown; freshness unverified.

Provenance

Source

Government Digital Service, likely originating from CEFAS (Centre for Environment, Fisheries and Aquaculture Science) or DFR.

Collection Method

Collected from research vessel cruises using a lowered CTD rosette system, with water samples taken for calibration.

Time Range

Specific temporal coverage is unknown; the title references a cruise from April 1985.

Freshness

Last updated date is unknown.

Geography

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