Worldwide

Bird taxonomy-related abundance per unit area of surface; Fish morphology, age and physiology; Fish taxonomy-related counts; Seal abundance; Other wave statistics; Vertical velocity of the water column (currents); Salinity of the water column; Ocean colour and earth-leaving visible waveband spectral radiation; Horizontal velocity of the water column (currents); Seal behaviour; Secchi disk depth; Temperature of the water column; Sound velocity and travel time in the water column; Cetacean behaviour; Cetacean abundance; Fish non taxonomy-related morphology

Bathythermographs; sound velocity sensors; discrete water samplers; salinity sensor; observers; CTD undulators; CTD; current profilers; wave recorders

The database comprises > 4 million profiles of temperature, salinity and sound velocity and observational data as detailed above. It includes Royal Navy data ( much of which has been released to the civil community for purposes of bona fide research) , UK Civilian Research Vessel data and public domain data received from other data centres. Individual observations are held as depth/temperature pairs at inflexion points and where resolution allows at 1 metre resolution . Meteorological and other environmental data data, if recorded at the time of the observation, are also databased.

United Kingdom Hydrographic Office

Taunton
Somerset
TA1 2DN
United Kingdom