MGL1407 - Marine Geoscience Data System

Sensor Data

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Bathymetry:Swath

Device Info

Sonar:Multibeam

Marcus G. Langseth

Repository

NOAA:NCEI

Format

MBSystem

Hutchinson, Deborah

USGS

Gravity:Field

Device Info

Gravimeter

Marcus G. Langseth

Repository

NOAA:NCEI

Format

ASCII

Hutchinson, Deborah

USGS

Magnetic:Field

Device Info

Magnetometer

Marcus G. Langseth

Repository

NOAA:NCEI

Format

ASCII

Hutchinson, Deborah

USGS

Navigation:Primary

Device Info

Navigation

Marcus G. Langseth

Repository

R2R

Format

R2R:Nav

Hutchinson, Deborah

USGS

Seismic Reflection/Refraction

Device Info

Seismic:MCS

Array:Marcus G. Langseth

Repository

MGDS

Format

ASCII, P1, P2, SEGD

Hutchinson, Deborah

USGS

Miller, Nathan C.

USGS

Related References

Seismic Reflection/Refraction

Device Info

Seismic:Sonobuoy

Array:Marcus G. Langseth

Repository

MGDS

Format

SEGY

Hutchinson, Deborah

USGS

Miller, Nathan C.

USGS

Seismic:Active:Subbottom

Device Info

Seismic:Subbottom

Marcus G. Langseth

Repository

NOAA:NCEI

Format

KEB

Hutchinson, Deborah

USGS

Temperature, Velocity:Sound

Device Info

Probe:Expendable:XBT

Marcus G. Langseth

Repository

NOAA:NCEI

Format

ASCII

Hutchinson, Deborah

USGS

Event Logs

Line

Device Info

Related Devices

Hutchinson, Deborah

USGS

Station:Surface

Device Info

Related Devices

Hutchinson, Deborah

USGS

Seismic Acquisition Parameters

Download As Text

MGL1407_ACQ001 (Lines: Sequences 1,18,19,20)

Source Information

AirGun (BOLT:1500LL)

Volume (cu in): 6600

Pressure (psi): 2000

Depth (m): 9

Distance to Near Channel (m): 225

Distance to Antenna (m): 213

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 468

Channels Recorded: 468

Group Spacing (m): 12.5

Cable Length (m): 6000

Cable Depth (m): 9

Near Channel Number: 468

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

CNAV 3050 - Primary

WGS84

Acquisition System

Digital

Name: Sercel Syntrak 960

Sample Interval (msec): 1

Details

Shot Interval is 25m for Seq 1

Shot Interval is 50m for Seq 18,19,20

Record Length is 9.5s for Seq 1

Record Length is 18s for Seq 18,19,20

Source Number was not provided, but likely 36 airguns

MGL1407_ACQ002 (Lines: Sequences 2-17)

Source Information

AirGun (BOLT:1500LL)

Volume (cu in): 6600

Pressure (psi): 2000

Depth (m): 9

Shot Interval (m): 50

Distance to Near Channel (m): 225

Distance to Antenna (m): 213

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

CNAV 3050 - Primary

WGS84

Acquisition System

Digital

Name: Sercel Syntrak 960

Sample Interval (msec): 2

Details

Record Length is 20s for Seq 2-7

Record Length is 18s for Seq 8-17

Streamer Depth is 9.5m for Seq 2,3,4

Streamer Depth is 9.0m for Seq 5-17

Source Number was not provided, but likely was 36 airguns

References

Ruppel et al., 2022 US Atlantic Margin Gas Hydrates . In book: World Atlas of Submarine Gas Hydrates in Continental Margins. doi: 10.1007/978-3-030-81186-0_24

Scientific Personnel

Arsenault, Matthew

Scientist

USGS

Baldwin, Wayne

Scientist

USGS

Fortin, William

Scientist

USGS

Foster, David

Scientist

USGS

Hutchinson, Deborah

Scientist:Chief

USGS

Meyer, Brian

Scientist

USGS

Miller, Nathan C.

Scientist:Co-Chief

USGS

Moore, Eric

Scientist

USGS

O'Brien, Thomas

Scientist

USGS

VanPay, Brian

Scientist

DOS

Support Personnel

Curran, Leslie

Observer:MarineMammal

RPS

Curtis, Klayton

Navigator

NCS SubSea

Dugan, Laurie

Observer:MarineMammal

RPS

Frey, Cassandra

Observer:MarineMammal

RPS

Gutierrez, Carlos

Technician:Airgun:Chief

LDEO:Office of Marine Operations

Ingram, Heidi

Observer:MarineMammal

RPS

Kasinger, Josh

Technician:Airgun

NCS SubSea

Koprowski, Robert

Technician

LDEO:Office of Marine Operations

Marcella, Laura

Observer:MarineMammal

RPS

Martello, Michael

Navigator

Geomotive

Martinson, David

Technician:Science:Chief

LDEO:Office of Marine Operations

Rich, Chadwick

Technician:Airgun

NCS SubSea

Slagle, Angela

Technician:Science

LDEO:Office of Marine Operations

Thompson, Alan

Technician

LDEO:Office of Marine Operations

Instruments

Gravimeter

Device Info

BGM-3

BellAerospace

Magnetometer

Device Info

G-882

Geometrics

Navigation

Device Info

NotProvided

Probe:Expendable:XBT

Device Info

MK21

Sippican

Seismic:Subbottom

Device Info

3260

Knudsen

Sonar:Multibeam

Device Info

EM122

Kongsberg

Seismic:MCS

Device Info

NotProvided

Platform Info

Marcus G. Langseth

Array

Seismic:Sonobuoy

Device Info

NotProvided

Platform Info

Marcus G. Langseth

Array