Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

EW0008

Maurice Ewing

Processed

Acquisition Information

Processed Data Sets

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Seismic:Navigation

Processed 3D volume of multichannel seismic data on the Blake Ridge, acquired during R/V Maurice Ewing expedition EW0008 (2000)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

File Format

ASCII

Quality

Hornbach, Matthew

University of Wyoming

Data Set References

Seismic:Reflection:MCS

Processed 3D volume of multichannel seismic data on the Blake Ridge, acquired during R/V Maurice Ewing expedition EW0008 (2000)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

File Format

PDF

Quality

Hornbach, Matthew

University of Wyoming

Data Set References

Seismic:Reflection:MCS

Data DOI: 10.1594/IEDA/500090

Processed 3D volume of multichannel seismic data on the Blake Ridge, acquired during R/V Maurice Ewing expedition EW0008 (2000)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

File Format

SEGY

Quality

Hornbach, Matthew

University of Wyoming

Data Set References

Event Logs

Line (EW0008)

Device Info

Seismic:MCS

Platform: Maurice Ewing (Array)

Holbrook, W. Steven

University of Wyoming

Line (EW0008)

Device Info

Related Devices

Holbrook, W. Steven

University of Wyoming

Seismic Acquisition Parameters

Download As Text

EW0008_ACQ001 (Lines: Sequences 12-70)

Source Information

AirGun (SERCEL:GI)

Source Number: 2

Volume (cu in): 210

Depth (m): 2.5

Shot Interval (m): 37.5

Distance to Near Channel (m): 181.65

Distance to Antenna (m): 53.4

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 324

Channels Recorded: 324

Group Spacing (m): 12.5

Cable Length (m): 4050

Cable Depth (m): 4

Near Channel Number: 324

Used Compass Birds: true

Nav System

GPS Trimble 4000DS plus Fugro

WGS84

Acquisition System

Digital

Name: SYNTRAK 480

Sample Interval (msec): 2

Record Length (sec): 10.24

Details

From the Data Reduction Summary: "The tailbuoy was logged continuously, but it never really worked."

EW0008_ACQ002 (Lines: Sequences 71-82,87.002-118)

Source Information

AirGun (SERCEL:GI)

Source Number: 2

Volume (cu in): 210

Depth (m): 2.5

Shot Interval (m): 37.5

Distance to Near Channel (m): 181.65

Distance to Antenna (m): 53.4

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 324

Channels Recorded: 324

Group Spacing (m): 12.5

Cable Length (m): 4050

Cable Depth (m): 4

Near Channel Number: 324

Used Compass Birds: true

Nav System

GPS Trimble 4000DS plus Fugro

WGS84

Acquisition System

Digital

Name: SYNTRAK 480

Sample Interval (msec): 2

Record Length (sec): 9.216

Details

EW0008_ACQ003 (Lines: Sequences 83-87.001)

Source Information

AirGun (SERCEL:GI)

Source Number: 2

Volume (cu in): 210

Depth (m): 2.5

Shot Interval (m): 37.5

Distance to Near Channel (m): 181.65

Distance to Antenna (m): 53.4

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 312

Channels Recorded: 312

Group Spacing (m): 12.5

Cable Length (m): 3090

Cable Depth (m): 4

Near Channel Number: 312

Used Compass Birds: true

Nav System

GPS Trimble 4000DS plus Fugro

WGS84

Acquisition System

Digital

Name: SYNTRAK 480

Sample Interval (msec): 2

Record Length (sec): 9.216

Details

EW0008_ACQ004 (Lines: Sequences 1-11,119-139)

Source Information

AirGun (SERCEL:GI)

Source Number: 2

Volume (cu in): 210

Depth (m): 2.5

Shot Interval (m): 37.5

Distance to Near Channel (m): 181.65

Distance to Antenna (m): 53.4

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 480

Channels Recorded: 480

Group Spacing (m): 12.5

Cable Length (m): 6000

Cable Depth (m): 4

Near Channel Number: 480

Used Compass Birds: true

Nav System

GPS Trimble 4000DS plus Fugro

WGS84

Acquisition System

Digital

Name: SYNTRAK 480

Sample Interval (msec): 2

Details

Record Length = 10.240 for sequences 1-11

Record Length = 9.216 for sequences 119-139

edu.utexas.ig:ew0008_acq001 (Lines: )

Source Information

NotApplicable

Receiver Information

Hydrophone:Streamer

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

GPS

WGS84

Acquisition System

Digital

Name: Syntrak 480

Details

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air_GI; SeismicSource_Gun_Air

Acquisition System Name: Syntrak 480

Acquisition System Type: digital

Seismic Nav System: GPS

Survey Datum: WGS84

Source to Near Channel (m): 181.65

Antenna to Source (m): 53.4: GI: 48.8: Bolt

Number of Channels Recorded: 480: 2D lines;<br>324: 3D lines<br>36: OBS lines

Channel Length (m): 12.5

Cable Receiver Depth (m): 2.5 - 7: 2D shoot; 4: target depth for 3D shoot

Source Volume (cubicInches): 210: GI; 8540: bolt

Source Pressure (bars): null

Source Number: GI: 2<br>Bolt: 6

Source Depth (m): 2.5: GI on 2D; 3D lines; 5: GI on OBS lines; 5: Bolt on 2D; 3D and OBS lines

Shot Control: distance

Shot Interval (s or m): 37.5: 2D and 3D; 20: OBS

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no

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