Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

V3618

Vema

Processed

Acquisition Information

Processed Data Sets

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Navigation:Primary

Shapefile of Processed ship-based Navigation Data acquired during the Vema expedition V3618 (1980)

Platform Info

Vema

LDEO

Device Info

Navigation

Locale

File Format

SHP

Quality

Rabinowitz, Philip

TAMU

Navigation:Primary

Data DOI: 10.1594/IEDA/313463

Processed ship-based Navigation Data acquired during the Vema expedition V3618 (1980)

Platform Info

Vema

LDEO

Device Info

Navigation

Locale

File Format

MGDS:Nav

Quality

Rabinowitz, Philip

TAMU

Event Logs

Line (V3618)

Device Info

Related Devices

Rabinowitz, Philip

TAMU

Line (V3618)

Device Info

Seismic:MCS

Platform: Vema (Array)

Rabinowitz, Philip

TAMU

Station:Surface (V3618)

Device Info

Seismic:MCS

LDEO

Platform: Vema (Array)

Seismic:Sonobuoy

Platform: Vema (Array)

Rabinowitz, Philip

TAMU

Seismic Acquisition Parameters

Download As Text

V3618_ACQ001 (Lines: All)

Source Information

AirGun (BOLT:1500C)

Source Number: 2

Volume (cu in): 932

Pressure (psi): 2000

Depth (m): 7

Distance to Near Channel (m): 140

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 12

Channels Recorded: 12

Group Spacing (m): 100

Cable Depth (m): 10

Near Channel Number: 12

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

Acquisition System

Digital

Name: DFSIV

Sample Interval (msec): 4

Record Length (sec): 12.288

(Recording Delay Used)

Details

antenna to stern=53 meters (recently from Bill Robinson who installed the antenna

stern to source=UNKNOWN

shot control description=shot by time to give 50 meter shot spacing

navigation type=Navy transit satellite fixes plus dead reckoning

edu.utexas.ig:v3618_acq001 (Lines: )

Source Information

AirGun

Receiver Information

Hydrophone:Streamer

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

Navy Transit Satellite fixes plus dead reckoning

WGS72

Acquisition System

Digital

Name: DFS IV

(Recording Delay Used)

Details

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air

Acquisition System Name: DFS IV

Acquisition System Type: digital

Seismic Nav System: Navy Transit Satellite fixes plus dead reckoning

Survey Datum: WGS72

Source to Near Channel (m): 140

Antenna to Source (m): unknown; antenna to stern = 53 m; stern to source = unknown

Number of Channels Recorded: 12

Channel Length (m): 100

Cable Receiver Depth (m): 10

Source Volume (cubicInches): 932

Source Pressure (bars): 138

Source Number: 2

Source Depth (m): 7

Shot Control: time

Shot Interval (s or m): null

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: yes

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