CTD measurements in La Maddalena Archipelago (Sardinia, Italy), 1976-77

Data set information

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Data holding centreCNR, Institute of Marine Sciences S.S. of Lerici (SP)
CountryItaly  Italy
Time periodAugust 1976, September 1976 and February 1977
Geographical area

Archipelago of La Maddalena (9° 22E to 9° 31E; 41° 08N to 41° 13N) off Sardinia


Temperature of the water column




Current and hydrographic measurements were performed in the Archipelago of La Maddalena (Sardinia Island, Italy), as part of an environmental survey. An area with a radius of 10 Km around S. Stefano Island was chosen for the study. Measurements were taken by the former SO in cooperation with the Comitato Nazionale Energia Nucleare (CNEN, the forerunner of ENEA). CTD measurements were taken from the CNR oceanographic vessel MARSILI by means of an automatic probe, designed and constructed in the laboratories of SO and CNEN. The probe consisted of an underwater unit connected to a receiver at the surface. The salinity was calibrated by comparison with discrete samples collected using NIO bottles and analysed by means of a GUILDLINE AUTOSAL salinometer. The raw data were treated to eliminate measurement errors, to calibrate the measured values, to correct temperature and conductivity for the time constant of the sensors and finally, to produce vertical profiles of temperature, salinity and density at 1 meter depth intervals. Station coordinates are given in latitude and longitude and time is in GMT. The number of hydrographic stations was 85 in August 1976, 39 in September 1976 and 76 in February 1977.

OriginatorsCNR, Institute of Marine Sciences S.S. of Lerici (SP)
Data web site
OrganisationCNR, Institute of Marine Sciences S.S. of Lerici (SP)
AvailabilityBy negotiation
ContactAstraldi Mario

CNR, Institute of Marine Sciences S.S. of Lerici (SP)
Forte Santa Teresa Pozzuolo di Lerici
Lerici (SP)


Collating centreNational Institute of Oceanography and Applied Geophysics - OGS, Division of Oceanography
Local identifierOGS-EDMED-123
Global identifier3860
Last revised2003-05-16