European Directory of Marine Environmental Data (EDMED)

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Data set name

UK National Databank of conductivity-temperature-depth (CTD) or salinity-temperature-depth (STD) profiles (1969-)

Data holding centreBritish Oceanographic Data Centre
CountryUnited Kingdom  United Kingdom
Time periodFrom 1968 onwards
Geographical area

Primarily North Atlantic and UK continental shelf but also contains global data


Alkalinity, acidity and pH of the water column; Transmittance and attenuance of the water column; Electrical conductivity of the water column; Chlorophyll pigment concentrations in water bodies; Dissolved oxygen parameters in the water column; Raw fluorometer output; Raw light meter output; Salinity of the water column; Sound velocity and travel time in the water column; Temperature of the water column; Raw suspended particulate material concentration sensor output; Visible waveband radiance and irradiance measurements in the atmosphere; Visible waveband radiance and irradiance measurements in the water column; Concentration of suspended particulate material in the water column


Fluorometers; radiometers; optical backscatter sensors; transmissometers; CTD; sound velocity sensors; dissolved gas sensors; pH sensors


The databank comprises more than 50,000 profiles of conductivity-temperature-depth (CTD) or salinity-temperature-depth (STD) profiles collected during 100s of research cruises by UK laboratories, since 1969. The majority of profiles were collected in the North East Atlantic but data are available from elsewhere including for example the Indian Ocean, the South Atlantic and the Southern Ocean. Many profiles have been measured in shelf seas (often around the UK) but some are deep ocean profiles which may contain data to a depth of 5000m. Data are normally supplied to the British Oceanographic Data Centre as time or depth averages resulting in vertical resolutions between 0.5 dbar and 10 dbar, with casts collected in shallow water typically having a higher vertical resolution.

OriginatorsBritish Oceanographic Data Centre
Data web site
OrganisationBritish Oceanographic Data Centre
ContactPolly Hadžiabdić (Head of the BODC Requests Team)

British Oceanographic Data Centre
Joseph Proudman Building 6 Brownlow Street
L3 5DA
United Kingdom

Telephone+44 (0) 151 795 4884
Collating centreBritish Oceanographic Data Centre
Local identifier1048015
Global identifier159
Last revised2010-09-16