European Directory of Marine Environmental Data (EDMED)

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General
Data set name

Seismic reflection and gravity survey of the Strait of Magellan (1991)

Data holding centreOGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Geophysics
CountryItaly  Italy
Time periodFrom March to April 1991
OngoingNo
Geographical area

709 km on 10 lines of seismic reflection survey of the Strait of Magellan

Observations 
Parameters

Gravity; Seismic reflection

Instruments

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

Description 
Summary

During the months of March and April 1991, the R/V OGS-Explora conducted a multidisciplinary survey in the Magellan Straits. Besides various datasets, about 709 km of high resolution seismic data have been collected and 238 km of marine gravity data. The research has been sponsored by PNRA in the framework of the Circumantarctic Subprogram. The data have been collected with the following sampling parameters: Coverage = 1200 % Sample Rate = 1 ms Shot Interval = 12.5 m Streamer Length = 300 m Streamer Depth = 6 m Group Interval = 6.25 m Number of Groups = 48 Record Length = 3 sec Air-Guns: - Total Volume = 8 l - Pressure = 140 bar - Depth = 6 m

OriginatorsOGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Geophysics
Data web sitehttp://www.ogs.trieste.it/pnra/UO/uo.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-199
Global identifier3775
Last revised1993-06-03