Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

RC2613

Robert D. Conrad

Raw

Acquisition Information

Raw Data Sets

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Seismic:WideAngle

Data DOI: 10.1594/IEDA/321925

Raw Wide-Angle Shot Data (Sonobuoy) from the South China Sea acquired during the Robert D. Conrad expedition RC2613 (1985)

Platform Info

Array:Robert D. Conrad

LDEO

Device Info

Seismic:Sonobuoy

Events

Station:Surface Log

Locale

SouthChinaSea

Sea

File Format

SEGY

Quality

Diebold, John

LDEO

Event Logs

Line (RC2613)

Device Info

Seismic:MCS

Platform: Robert D. Conrad (Array)

Hayes, Dennis

Station:Surface (RC2613)

Device Info

Seismic:MCS

Platform: Robert D. Conrad (Array)

Seismic:Sonobuoy

Platform: Robert D. Conrad (Array)

Diebold, John

LDEO

Seismic Acquisition Parameters

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RC2613_ACQ001 (Lines: Conrad: CDP lines 624,626,628,630,632,634,636,637; Expanding Spread Profiles(ESP) 625,627,629,631,633,635)

Source Information

AirGun (BOLT:1500C)

Source Number: 4

Volume (cu in): 1864

Pressure (psi): 2000

Distance to Near Channel (m): 280

Distance to Antenna (m): 60

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 Active Tail Buoy: false

Used Compass Birds: false

Nav System

satellite navigation (may include early Navstar GPS) and Loran C (Internav and Northstar 6000)

likely WGS72

Acquisition System

Digital

Name: DFSIV

Sample Interval (msec): 4

(Recording Delay Used)

Details

Shot Interval = 20s CDP lines

Shot Interval = 60s ESP lines

Record Length = 12s CDP lines

Record Length = 40s for ESP lines recorded by Conrad

Cable Depth is unknown

Source Depth is unknown

Source to Near Channel value was determined during processing

RC2613_ACQ002 (Lines: Haiyang 4: CDP lines 624,626,628,630,632,634,636,637;Expanding Spread Profiles(ESP) 625,627,629,631,633,635)

Source Information

AirGun

Shot Interval (sec): 60

Distance to Near Channel (m): 264

Distance to Antenna (m): 35

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 16

Channels Recorded: 16

Group Spacing (m): 50

Cable Length (m): 800

Near Channel Number: 1

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

unknown

WGS72

Acquisition System

Digital

Name: NotProvided

Sample Interval (msec): 4

(Recording Delay Used)

Details

Record Length = 12s lines 625,627,629,631,633,635. These lines were recorded as ESP by Conrad, as CDP by Haiyang

Cable Depth is unknown

Source Depth, Pressure, Type and Number are unknown

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