European Directory of Marine Environmental Data (EDMED)

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General
Data set name

Seismic reflection surveys of Mediterranean Sea (1969-82)

Data holding centreOGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Geophysics
CountryItaly  Italy
Time periodFrom 1969 to 1982
OngoingNo
Geographical area

About 31,500 km of seismic reflection data collected during 10 campaigns in the whole Mediterranean Sea area

Observations 
Parameters

Seismic reflection

Instruments

Multi-channel seismic reflection systems; seismic refraction systems; gravimeters; satellite positioning systems

Description 
Summary

During the period from 1969 to 1982, the Osservatorio Geofisico Sperimentale carried out an intensive study of the Mediterranean Sea, collecting a very large amount of seismic reflection data. The data were collected during 10 seismic surveys performed with the R/V L.F. Marsili of C.N.R. and fitted by OGS with the required seismic equipment. In consideration of the long period of field data activity and the rapid development of seismic data acquisition systems available on the international market, the data have been collected with different instruments. The sampling data acquisition parameters have been improved nearly every year, and can be summarized as follows: Coverage = 600 - 1200 - 2400 % Sample Rate = 4 ms Shot Interval = 50 - 100 m Streamer Length = 2400 m Streamer Depth = 12 - 15 m Group Interval = 50 - 100 m Number of Groups = 24 - 48 Record Length = 8 - 10 sec Energy Source: - Total Charge = 100 - 300 gr - Depth = 14 m

OriginatorsOGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Geophysics
Data web sitehttp://www.ogs.trieste.it/GDL/index.html
Availability 
OrganisationOGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Geophysics
AvailabilityBy negotiation
ContactDepartment Director (Department Director)
Address

OGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Geophysics
Borgo Grotta Gigante 42/c
Sgonico (Trieste),

34010
Italy

Administration 
Collating centreOGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Oceanography
Local identifierOGS-EDMED-207
Global identifier3767
Last revised1993-06-16