European Directory of Marine Environmental Data (EDMED)

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General
Data set name

Seismic reflection, magnetic and gravimetric survey of South Pacific Ocean, Antarctica (1988-89)

Data holding centreOGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Geophysics
CountryItaly  Italy
Time periodFrom December 1988 to January 1989
OngoingNo
Geographical area

3,053 km on 13 lines of seismic reflection, gravimetric and magnetometric survey in Balleny Islands area

Observations 
Parameters

Gravity; Seismic reflection

Instruments

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

Description 
Summary

During the austral summer 1988-89, the second geophysical survey was conducted in Antarctica collecting magnetic, gravimetric, seismic reflection and refraction data in the South Pacific Ocean and in the Ross Sea. The first part of the survey has been dedicated to the area of the Balleny Islands in the South Pacific Ocean, where 3,053 km of profiles have been collected. The research has been sponsored by the National Research Program in Antarctica (PNRA), headed by the Italian ENEA. The data have been collected with the following sampling parameters: Coverage = 3000 % Sample Rate = 4 ms Shot Interval = 50 m Streamer Length = 3000 m Streamer Depth = 12 m Group Interval = 25 m Number of Groups = 120 Record Length = 14 sec Air-Guns: - Total Volume = 45.16 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-192
Global identifier3782
Last revised1993-06-03