Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

FM1002

Fred Moore

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Acquisition Information

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Seismic:Navigation:ShotTime

Data DOI: 10.1594/IEDA/322028

Seismic Shot Time Navigation Data acquired during the Fred Moore expedition FM1002 (1981)

Platform Info

Array:Fred Moore

UTIG

Device Info

Seismic:MCS

Events

Station:Surface Log

Locale

File Format

ASCII

Quality

Rosencrantz, Eric

UTIG

Event Logs

Line (FM1002)

Device Info

Seismic:MCS

Platform: Fred Moore (Array)

Buhl, Peter

UTIG

Station:Surface (FM1002)

Device Info

Seismic:MCS

Platform: Fred Moore (Array)

Seismic:Sonobuoy

Platform: Fred Moore (Array)

Rosencrantz, Eric

UTIG

Seismic Acquisition Parameters

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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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