Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

EW0001

Maurice Ewing

Raw

Acquisition Information

Raw Data Sets

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Seismic:Reflection:MCS

Data DOI: 10.1594/IEDA/321239

Raw Multi-Channel Seismic Shot Data from the Canterbury Basin, offshore New Zealand, acquired during the R/V Maurice Ewing expedition EW0001 (2000)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

NewZealand

FocusSite:GeoPRISMS

File Format

SEGY

Quality

Fulthorpe, Craig

UTIG

Frohlich, Cliff

Mann, Paul

UTIG

Data Set References

Event Logs

Line (EW0001)

Device Info

Related Devices

Fulthorpe, Craig

UTIG

Line (EW0001)

Device Info

Seismic:MCS

Platform: Maurice Ewing (Array)

Fulthorpe, Craig

UTIG

Seismic Acquisition Parameters

Download As Text

EW0001_ACQ001 (Lines: Sequences 1-9)

Source Information

AirGun (SERCEL:GI45/45)

Source Number: 2

Volume (cu in): 90

Pressure (psi): 2000

Depth (m): 2.5

Shot Interval (sec): 5

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 96

Group Spacing (m): 12.5

Cable Length (m): 1200

Used Compass Birds: true

Nav System

Trimble DGPS (PCODE GPS not working)

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 1

Record Length (sec): 3

Details

Cable Depth was increased from 2.5m to 3.5m in bad weather

Antenna to Source in EW0004 diagram showed Trimble was 47.8m from stern and PCCODE was 16m from stern

Source to Near Channel is given as 29.25m in cruise report text and 26.5m in cruise report diagram

EW0001_ACQ002 (Lines: Sequences 10-65)

Source Information

AirGun (SERCEL:GI45/45)

Source Number: 2

Volume (cu in): 90

Pressure (psi): 2000

Depth (m): 2.5

Shot Interval (sec): 5

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 120

Group Spacing (m): 12.5

Cable Length (m): 1500

Near Channel Number: 120

Used Compass Birds: true

Nav System

Trimble DGPS (PCODE GPS not working)

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 1

Record Length (sec): 3

Details

Cable Depth was increased from 2.5m to 3.5m in bad weather

Antenna to Source in EW0004 diagram showed Trimble was 47.8m from stern and PCCODE was 16m from stern

Source to Near Channel is given as 29.25m in EW0001 cruise report text and 26.5m in cruise report diagram

edu.utexas.ig:ew0001_acq001 (Lines: )

Source Information

NotApplicable

Receiver Information

Hydrophone:Streamer

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

GPS along with a Furuno doppler speed logger

WGS84

Acquisition System

Digital

Name: Syntrack 480-24

Details

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air_GI

Acquisition System Name: Syntrack 480-24

Acquisition System Type: digital

Seismic Nav System: GPS along with a Furuno doppler speed logger

Survey Datum: WGS84

Source to Near Channel (m): 29.25

Antenna to Source (m): null

Number of Channels Recorded: 96; 120

Channel Length (m): 12.5

Cable Receiver Depth (m): 2.5: normally; 3.5: in bad weather

Source Volume (cubicInches): 90

Source Pressure (bars): 138

Source Number: 2

Source Depth (m): 2.5

Shot Control: null

Shot Interval (s or m): null

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no

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