FM1002 Seismic Reflection/Refraction

Seismic:WideAngle

Raw Wide-Angle Shot Data (Sonobuoy) acquired during the Fred Moore expedition FM1002 (1981)

This sonobuoy data set was acquired during Fred Moore expedition FM1002 conducted in 1981 (Chief Scientist: Dr. Eric Rosencrantz). These data were acquired during multi (or single) channel seismic operations and the seismic shot time navigation file for MCS operations should be used for processing the sonobuoy data. Data files are of SEGY format and include Wide-Angle Seismic shot data that have not been processed.

Rosencrantz, Eric

Investigator

UTIG

Device Info

Seismic:Sonobuoy

Platform

Fred Moore (Array)

UTIG

Data DOI

10.1594/IEDA/321943

Quality

Data have not been processed or modified since acquisition (e.g. Realtime navigation or sonar data, raw images etc.).

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Data Files

Acquisition Information

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Data Citation Information

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ISO/XML Metadata

Related Acquisition Information

FM1002

Station:Surface Log

Seismic Acquisition Parameters

Download as Text: FM1002

FM1002_ACQ001 (Lines: Recorded and/or shot by Moore: Constant Offset Profiles(COP) Lines 22,25,31,34,35, CDP (Moore only) 39,Expanding Spread Profiles(ESP) 23,26,29,33,36,38,41)

Source Information

AirGun (BOLT)

Source Number: 4

Volume (cu in): 2932

Pressure (psi): 2000

Depth (m): 13

Distance to Near Channel (m): 240

Distance to Antenna (m): 48

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 48

Channels Recorded: 48

Group Spacing (m): 70

Cable Length (m): 3360

Near Channel Number: 48

Used Active Tail Buoy: false

Used Compass Birds: true

Nav System

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

WGS72

Acquisition System

Digital

Name: DFSIV

Sample Interval (msec): 4

(Recording Delay Used)

Details

Prospekta was the lead ship during COPs for all lines.

Shot Interval = 60s each ship, alternating every 30s for COP, 60s for ESP

Record Length = 20s COP, 40s ESP

Cable Depth is unknown

Source Model = Bolt 800C

For more Source information, see the cruise report.

FM1002_ACQ002 (Lines: Recorded and/or shot by Prospekta: Constant Offset Profiles(COP) Lines 22,25,31,34,35, Expanding Spread Profiles(ESP) 23,26,29,33, 36,38,41, CDP (Prospekta only) 18-21,24,27-28,30,32,37,40)

Source Information

AirGun

Pressure (psi): 2000

Distance to Near Channel (m): 150

Distance to Antenna (m): 88

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

Nav System

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

WGS72

Acquisition System

Digital

Name: DFSV

Sample Interval (msec): 4

(Recording Delay Used)

Details

Prospekta was the lead ship during COPs for all lines.

Shot Interval = 60s each ship, alternating every 30s for COP, 60s for ESP

Record Length = 20s COP, 40s ESP

Cable Depth is unknown

Source Volume may have been 47.04 L (= 2870 cu in) or 36.54 L (= 2230 cu in) or possibly 2230 cu in plus spares

For more Source information, see the cruise report.

edu.utexas.ig:fm1002_acq001 (Lines: )

Source Information

AirGun

Receiver Information

Hydrophone:Streamer

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

Transit satellite navigation supplemented with dead reckoning between fixes.

WGS72

Acquisition System

Digital

Name: DFS IV

Details

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air

Acquisition System Name: DFS IV

Acquisition System Type: digital

Seismic Nav System: Transit satellite navigation supplemented with dead reckoning between fixes.

Survey Datum: WGS72

Source to Near Channel (m): 230

Antenna to Source (m): 65

Number of Channels Recorded: 48

Channel Length (m): 70

Cable Receiver Depth (m): null

Source Volume (cubicInches): 2000; 1000; 466

Source Pressure (bars): 138

Source Number: 4

Source Depth (m): 10

Shot Control: null

Shot Interval (s or m): null

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no

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