Marine Geoscience Data System

Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

Marcus G. Langseth

Processed

Acquisition Information

Processed Data Sets

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Seismic:Velocity:Model

Data DOI: 10.26022/IEDA/330941

Seismic velocity grids, Eastern North American Margin Community Seismic Experiment (ENAM CSE)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:OBS

Events

Locale

EasternNorthAmericanMargin

FocusSite:GeoPRISMS

File Format

ASCII

Quality

2

Shuck, Brandon

LDEO

vanAvendonk, Harm

UTIG

Bécel, Anne

LDEO

show

Data Set References

Seismic:Velocity:Model

Data DOI: 10.26022/IEDA/330943

Seismic velocity model geometries, Eastern North American Margin Community Seismic Experiment (ENAM CSE)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:OBS

Events

Locale

EasternNorthAmericanMargin

FocusSite:GeoPRISMS

File Format

ASCII

Quality

2

Shuck, Brandon

LDEO

vanAvendonk, Harm

UTIG

Bécel, Anne

LDEO

show

Data Set References

Seismic:Velocity:Model

Data DOI: 10.26022/IEDA/330942

Seismic velocity model layers, Eastern North American Margin Community Seismic Experiment (ENAM CSE)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:OBS

Events

Locale

EasternNorthAmericanMargin

FocusSite:GeoPRISMS

File Format

ASCII

Quality

2

Shuck, Brandon

LDEO

vanAvendonk, Harm

UTIG

Bécel, Anne

LDEO

show

Data Set References

Seismic:Velocity:Model

Data DOI: 10.26022/IEDA/330944

Seismic velocity model images, Eastern North American Margin Community Seismic Experiment (ENAM CSE)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:OBS

Events

Locale

EasternNorthAmericanMargin

FocusSite:GeoPRISMS

File Format

PNG

Quality

2

Shuck, Brandon

LDEO

vanAvendonk, Harm

UTIG

Bécel, Anne

LDEO

show

Data Set References

Event Logs

Device Info

show

Related Devices

Shillington, Donna

LDEO

Device Info

Seismic:OBS

Platform: Marcus G. Langseth (Array)

Seismic:MCS

Platform: Marcus G. Langseth (Array)

Seismic:Seismometer

Platform: Marcus G. Langseth (Array)

Shillington, Donna

LDEO

Station:Bottom (EN546)

Device Info

show

Related Devices

vanAvendonk, Harm

UTIG

Seismic Acquisition Parameters

Download As Text

MGL1408_ACQ001 (Lines: Sequences 1,3,10,13,14,15)

Source Information

AirGun (BOLT:1500)

Volume (cu in): 6600

Pressure (psi): 2000

Depth (m): 9

Shot Interval (m): 225

Distance to Near Channel (m): 307.5

Distance to Antenna (m): 216

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 636

Channels Recorded: 636

Group Spacing (m): 12.5

Cable Length (m): 8000

Cable Depth (m): 9

Near Channel Number: 636

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

C-Nav3050 - Primary

WGS84

Acquisition System

Digital

Name: Sercel Syntrak 960

Sample Interval (msec): 2

Record Length (sec): 18

Details

Source Number was 36 airguns

MGL1408_ACQ002 (Lines: Sequences 2,4,5,6,11,12,16,17,18,23,24,25)

Source Information

AirGun (BOLT:1500)

Pressure (psi): 2000

Shot Interval (m): 50

Distance to Near Channel (m): 307.5

Distance to Antenna (m): 216

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 636

Channels Recorded: 636

Group Spacing (m): 12.5

Cable Length (m): 8000

Near Channel Number: 636

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

C-Nav3050 - Primary

WGS84

Acquisition System

Digital

Name: Sercel Syntrak 960

Sample Interval (msec): 2

Record Length (sec): 18

Details

Source Volume = 6600cu in for Sequences 2,4,16,17,18,23

Source Volume = 3300cu in for Sequences 5,6,11,12,24,25

Source Volume = 6600cu in for Sequences 28 and 29

Source Volume = 3300cu in for Sequence 30

Source Number was 18 airguns for 3300cu.in. and 36 airguns for 6600cu.in.

Streamer Depth = 6m and Source Depth = 6m for Sequences 5,6,11,12,24,25

Streamer Depth = 9m and Source Depth = 9m for Sequences 2,4,16,17,18,23

MGL1408_ACQ003 (Lines: Sequences 7,8,9,19,20,21,22,26,27)

Source Information

AirGun (BOLT:1500)

Volume (cu in): 3300

Pressure (psi): 2000

Distance to Near Channel (m): 307.5

Distance to Antenna (m): 216

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): 6

Near Channel Number: 480

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

C-Nav3050 - Primary

WGS84

Acquisition System

Digital

Name: Sercel Syntrak 960

Sample Interval (msec): 1

Record Length (sec): 9

Details

Shot Interval = 37.5m for Sequence 9

Shot Interval = 25m for Sequences 7,8,19,20,21,22,26,27

Source Number was 18 airguns for 3300cu.in.

MGL1408_ACQ004 (Lines: Sequences 28-30)

Source Information

AirGun (BOLT:1500)

Pressure (psi): 2000

Distance to Near Channel (m): 307.5

Distance to Antenna (m): 216

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 636

Channels Recorded: 636

Group Spacing (m): 12.5

Cable Length (m): 8000

Near Channel Number: 636

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

C-Nav3050 - Primary

WGS84

Acquisition System

Digital

Name: Sercel Syntrak 960

Sample Interval (msec): 2

Record Length (sec): 18

Details

Shot Interval = 62.5m for Sequence 28

Shot Interval = 75m for Sequence 29

Shot Interval = 50m for Sequence 30

Source Depth = 9m and Streamer Depth = 9m for Sequences 28,29

Source Depth = 6m and Streamer Depth = 6m for Sequence 30

Source Volume = 6600cu.in. for Sequences 28 and 29

Source Volume = 3300cu in for Sequence 30

Source Number was 18 airguns for 3300cu.in. and 36 airguns for 6600cu.in.

org.marine-geo:MGL1408_ACQ001 (Lines: )

Source Information

AirGun

Receiver Information

NotApplicable

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

WGS84

Acquisition System

Digital

Name:

Details

Receiver Type: Hydrophone:Streamer

Source Type: SeismicSource_Gun_Air

Acquisition System Name: null

Acquisition System Type: null

Seismic Nav System: null

Survey Datum: WGS84

Source to Near Channel (m): 307.5

Antenna to Source (m): 216 (nav ref point to source)

Number of Channels Recorded: 636: lines mcs01, mcs01a, mcs01b, mcs02, mcs03, mcs31, mcs32, mcs41, mcs42, mcs04a, mcs0a4a, mcs04b, mcs62, mcs63, mcs71, obs01, obs01a, obs01b, obs03, obs04a, obs04b<br>480: lines mcs33, mcs34, mcs35, mcs52, mcs53, mcs57, mcs58, mcs63a, mcs64

Channel Length (m): 12.5

Cable Receiver Depth (m): 9: lines mcs01, mcs01a, mcs01b, mcs02, mcs03, mcs33, mcs34, mcs35, mcs04a, mcs0a4a, mcs04b, mcs52, mcs53, mcs57, mcs58, mcs63a, mcs64, obs01, obs01a, obs01b, obs03, obs04a, obs04b<br>6: lines mcs31, mcs32, mcs33, mcs34, mcs35, mcs41, mcs42, mcs52, mcs53, mcs57, mcs58, mcs62, mcs63, mcs63a, mcs64, mcs71

Source Volume (cubicInches): 6600: lines mcs01, mcs01a, mcs01b, mcs02, mcs03, mcs04a, mcs0a4a, mcs04b, obs01, obs01a, obs01b, obs03, obs04a, obs04b<br>3300: lines mcs31, mcs32, mcs33, mcs34, mcs35, mcs41, mcs42, mcs52, mcs53, mcs57, mcs58, mcs62, mcs63, mcs63a, mcs64, mcs71

Source Pressure (bars): null

Source Number: 20: lines mcs31, mcs32, mcs33, mcs34, mcs35, mcs41, mcs42, mcs52, mcs53, mcs57, mcs58, mcs62, mcs63, mcs63a, mcs64, mcs71<br>40: lines mcs01, mcs01a, mcs01b, mcs02, mcs03, mcs04a, mcs0a4a, mcs04b, obs01, obs01a, obs01b, obs03, obs04a, obs04b

Source Depth (m): 9: lines mcs01, mcs01a, mcs01b, mcs02, mcs03, mcs33, mcs34, mcs35, mcs04a, mcs0a4a, mcs04b, mcs52, mcs53, mcs57, mcs58, mcs63a, mcs64, obs01, obs01a, obs01b, obs03, obs04a, obs04b<br>6: lines mcs31, mcs32, mcs33, mcs34, mcs35, mcs41, mcs42, mcs52, mcs53, mcs57, mcs58, mcs62, mcs63, mcs63a, mcs64, mcs71

Shot Control: distance

Shot Interval (s or m): 25: lines mcs33, mcs34, mcs52, mcs53, mcs57, mcs58, mcs63a, mcs64<br>37.5: line mcs35<br>50: lines mcs01, mcs01a, mcs01b, mcs02, mcs03, mcs31, mcs32, mcs41, mcs42, mcs04b, mcs62, mcs63, mcs71<br>62.5: line mcs04a<br>75: line mcs0a4a<br>225: lines obs01, obs01a, obs01b, obs03, obs04a, obs04b

Compass Birds: yes

Tail Buoy Positioning: yes

Recording Delay: no

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