Marine Geoscience Data System

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Data DOI: 10.1594/IEDA/322011

Seismic Navigation Data (P1 format) from the Eastern North American Margin acquired during R/V Marcus G. Langseth expedition MGL1506 (2015)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

EasternNorthAmericanMargin

FocusSite:GeoPRISMS

File Format

P1

Quality

1

Details

These processed (quality=1) P190 navigation files should be used for processing the MCS data.

Hutchinson, Deborah

USGS

Wood, Warren

USN:NRL

Miller, Nathan C.

USGS

Seismic:Navigation:ShotTime

Processed Seismic Shot Time Navigation Data from the Eastern North American Margin Focus Site acquired during R/V Marcus G. Langseth expedition MGL1506 (2015)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

EasternNorthAmericanMargin

FocusSite:GeoPRISMS

File Format

ASCII

Quality

1

Hutchinson, Deborah

USGS

Wood, Warren

USN:NRL

Miller, Nathan C.

USGS

Seismic:Reflection:MCS

Data DOI: 10.1594/IEDA/322006

Multi-Channel Seismic Shot Data from the Eastern North American Margin Focus Site: GeoPRISMS acquired during the R/V Marcus G. Langseth expedition MGL1506 (2015)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

EasternNorthAmericanMargin

FocusSite:GeoPRISMS

File Format

SEGD

Quality

0

Hutchinson, Deborah

USGS

Wood, Warren

USN:NRL

Miller, Nathan C.

USGS

Data Set References

Event Logs

Line (MGL1506)

Device Info

Seismic:MCS

Platform: Marcus G. Langseth (Array)

Hutchinson, Deborah

USGS

Seismic Acquisition Parameters

Download As Text

MGL1506_ACQ001 (Lines: Sequences 1-10)

Source Information

AirGun (BOLT:1500)

Source Number: 36

Volume (cu in): 6600

Pressure (psi): 2000

Depth (m): 9

Shot Interval (m): 50

Distance to Near Channel (m): 318.5

Distance to Antenna (m): 205

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Group Spacing (m): 12.5

Cable Depth (m): 9

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

CNAV 3050 DGPS Receiver

WGS84

Acquisition System

Digital

Name: Sercel Syntrak 960

Details

Sample Rate = 1msec for Sequences 1,2

Sample Rate = 2msec for Sequences 3-10

Record Length = 18s for Sequences 1-10 until Seq 10, shot 38171 changed to 17s

Number of Channels = 480 for Sequences 1,2

Number of Channels = 636 for for Sequences 3-10

Streamer Length = 6000m for Sequences 1,2

Streamer Length = 8000 for Sequences 3-10

Near Channel Number = 480 for Sequences 1,2

Near Channel Number = 636 for Sequences 3-10

MGL1506_ACQ002 (Lines: Sequences 11-24)

Source Information

AirGun (BOLT:1500)

Source Number: 36

Volume (cu in): 6600

Pressure (psi): 2000

Depth (m): 9

Shot Interval (m): 50

Distance to Near Channel (m): 318.5

Distance to Antenna (m): 205

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Group Spacing (m): 12.5

Cable Depth (m): 9

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

CNAV 3050 DGPS Receiver

WGS84

Acquisition System

Digital

Name: Sercel Syntrak 960

Details

Sample Rate = 2msec for Sequences 3-23

Sample Rate = 1msec for Sequence 24

Record Length = 17s for Sequence 11 until shot 41706 changed to 16s

Record Length = 16s for Sequence 12,13,14,16,17,18,19,21,22,24

Record Length = 16s for Sequence 15 until shot 02836 changed to 9.5s then at shot 53982 changed to 14s

Record Length = 14s for Sequence 20 until shot 64555 changed to 9.5s

Record Length = 16s for Sequence 23 until shot 73086 changed to 15s

Number of Channels = 636 for Sequences 11-23

Number of Channels = 480 for Sequence 24

Streamer Length = 8000m for Sequences 11-23

Streamer Length = 6000m for Sequence 24

Near Channel Number = 636 for Sequences 11-23

Near Channel Number = 480 for Sequence 24