Marine Geoscience Data System

Processed Data Sets

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Processed multichannel seismic data off the eastern Greenland margin acquired during the Robert D. Conrad expedition RC2412 (1983)

Platform Info

Array:Robert D. Conrad

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

File Format

ASCII

Quality

2

Alsop, Joyce

Data Set References

Seismic:Reflection:MCS

Data DOI: 10.1594/IEDA/500036

Processed multichannel seismic data off the eastern Greenland margin acquired during the Robert D. Conrad expedition RC2412 (1983)

Platform Info

Array:Robert D. Conrad

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

File Format

SEGY

Quality

2

Alsop, Joyce

Data Set References

Seismic:Reflection:MCS

Processed multichannel seismic data off the eastern Greenland margin acquired during the Robert D. Conrad expedition RC2412 (1983)

Platform Info

Array:Robert D. Conrad

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

File Format

PDF

Quality

2

Alsop, Joyce

Data Set References

Event Logs

Line (RC2412)

Device Info

Seismic:MCS

Platform: Robert D. Conrad (Array)

Mutter, John

LDEO

Seismic Acquisition Parameters

Download As Text

RC2412_ACQ001 (Lines: Recorded by Conrad: COP Lines 39,40,41,42,44,45,46; ESP Lines 33,35,37,43,47,54,56,58,60; CDP lines 48,50, 53(cdp only),49, 51(while Prospekta recorded esp). )

Source Information

AirGun (BOLT:1500C)

Source Number: 4

Volume (cu in): 2932

Pressure (psi): 2932

Distance to Near Channel (m): 298

Distance to Antenna (m): 48

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 48

Channels Recorded: 48

Group Spacing (m): 50

Cable Length (m): 2400

Near Channel Number: 48

Used Compass Birds: true

Nav System

Northstar-6000 LORAN-C & Magnavox 1107 Transit Satellite/Doppler Sonar probably

WGS72

Acquisition System

Digital

Name: DFS IV

Sample Interval (msec): 4

(Recording Delay Used)

Details

Source Depth: Unknown;

Cable Depth: Unknown;

Shot_interval: 60 secs each ship, alternating every 30 secs for COP lines,

Prospekta shot on 1st half minute (flag 2), Conrad shot on 2nd half minute (flag 1)

Record_length: 20s for COP, 40s for ESP

RC2412_ACQ002 (Lines: All 2-ship lines. No data available for Prospekta CDP lines 34,36,38,52,55,57,59,61,62)

Source Information

AirGun (BOLT:1500C)

Volume (cu in): 2227

Pressure (psi): 2000

Distance to Near Channel (m): 150

Distance to Antenna (m): 48

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 60

Channels Recorded: 60

Group Spacing (m): 50

Cable Length (m): 3000

Near Channel Number: 60

Used Active Tail Buoy: false

Used Compass Birds: true

Nav System

Northstar-6000 LORAN-C & Magnovox 1107 Transit Satellite/Doppler Sonar probably

WGS72

Acquisition System

Digital

Name: DFS V

Sample Interval (msec): 4

(Recording Delay Used)

Details

Cable Depth: unknown;Source Number: unknown;Source Depth: unknown;Shot Control: Time;Shot Interval: For ESP lines every 60 secs. For COP lines, shooting every 60 secs each ship, alternating every 30 secs. Prospekta shot on 1st half min (flag 2), Conrad on 2nd half min (flag 1);Record Length 20 secs for COP, 40 secs for ESP;Prospekta was the lead ship during COPs for all lines;Conrad navigation was used to determine cdps.