Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

RC2911

Robert D. Conrad

Processed

Acquisition Information

Processed Data Sets

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Navigation:Primary

Data DOI: 10.1594/IEDA/311126

Processed ship-based Navigation Data acquired during the Robert D. Conrad expedition RC2911 (1988)

Platform Info

Robert D. Conrad

LDEO

Device Info

Navigation

Locale

File Format

MGDS:Nav

Quality

Watts, Anthony

LDEO

Navigation:Primary

Shapefile of Processed ship-based Navigation Data acquired during the Robert D. Conrad expedition RC2911 (1988)

Platform Info

Robert D. Conrad

LDEO

Device Info

Navigation

Locale

File Format

SHP

Quality

Watts, Anthony

LDEO

Event Logs

Line (RC2911)

Device Info

Related Devices

Watts, Anthony

LDEO

Line (RC2911)

Device Info

Seismic:MCS

Platform: Robert D. Conrad (Array)

Watts, Anthony

LDEO

Seismic Acquisition Parameters

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RC2911_ACQ001 (Lines: Recorded by Conrad (C_C): VALSIS COP lines 805,806,808,818-822; VALSIS ESP lines 807,809,814,816 recorded as CDP lines by Conrad; VALSIS CDP-only lines 813,815,817)

Source Information

AirGun (BOLT:1500C)

Source Number: 10

Volume (cu in): 5821

Pressure (psi): 2000

Distance to Near Channel (m): 280

Distance to Antenna (m): 58

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 96

Channels Recorded: 96

Group Spacing (m): 25

Cable Length (m): 2400

Near Channel Number: 96

Used Compass Birds: true

Nav System

GPS and Transit Satellite

WGS84

Acquisition System

Digital

Name: Digicon DSS240

Sample Interval (msec): 4

Record Length (sec): 20

Details

Most Gulf of Valencia (VALSIS) lines were shot and recorded by Conrad

Lines 810,811,812 were shot by Conrad but not recorded by Conrad

Shot Interval was 60s for ESP lines 807,809,814,816

Shot Interval was 30s for COP and CDP lines 805,806,808,818,819,820,821,822

Source Depth and Cable Depth are unknown

Shot Interval was 60s for Line 811 (recorded only on land)

RC2911_ACQ002 (Lines: Recorded by Charcot (C_CH): VALSIS COP lines 805,806,808,818-822; VALSIS ESP lines 807,809,810,812,814,816)

Source Information

AirGun (BOLT:1500C)

Source Number: 10

Volume (cu in): 5821

Pressure (psi): 2000

Distance to Antenna (m): 58

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 96

Channels Recorded: 96

Group Spacing (m): 25.25

Cable Length (m): 2400

Near Channel Number: 96

Used Compass Birds: true

Nav System

GPS and Transit Satellite

WGS84

Acquisition System

Digital

Name: Sercel SN-348

Sample Interval (msec): 4

Details

Conrad was the shooting ship

Jean Charcot was the recording ship

Source to Near Channel for COP lines was nominally 5400m

Source to Near Channel for ESP lines was continually increasing or decreasing

Shot Interval was 60 seconds for ESP lines

Record Length was 32 seconds for ESP lines

Shot Interval was 30 seconds for COP lines

Record Length was 20 seconds for COP lines

Source Depth and Cable Depth are unknown

RC2911_ACQ003 (Lines: Recorded by Conrad (C_C): Alboran Sea CDP-only lines 823-829)

Source Information

AirGun (BOLT:1500C)

Source Number: 10

Volume (cu in): 5821

Pressure (psi): 2000

Shot Interval (sec): 23

Distance to Near Channel (m): 280

Distance to Antenna (m): 58

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 96

Channels Recorded: 96

Group Spacing (m): 25

Cable Length (m): 2400

Near Channel Number: 96

Used Compass Birds: true

Nav System

GPS and Transit Satellite

WGS84

Acquisition System

Digital

Name: Digicon DSS240

Sample Interval (msec): 4

Record Length (sec): 20

Details

All Alboran Sea lines were shot and recorded by Conrad

Source Depth and Cable Depth are unknown

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