Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

MGL1110

Marcus G. Langseth

Raw

Acquisition Information

Raw Data Sets

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Temperature, Velocity:Sound

Raw XBT Expendable Probe Data from the Alaska: Aleutians Focus Site: GeoPRISMS acquired during the Marcus G. Langseth expedition MGL1110 (2011)

Platform Info

Marcus G. Langseth

LDEO

Device Info

Probe:Expendable:XBT

Sippican:T-5

Events

Station:WaterColumn:Released Log

Locale

Alaska:Aleutians

FocusSite:GeoPRISMS

File Format

EDF

Quality

Shillington, Donna

LDEO

Temperature, Velocity:Sound

Data at NOAA:NCEI

Platform Info

Marcus G. Langseth

LDEO

Device Info

Probe:Expendable:XBT

Sippican:MK21

Locale

Alaska:Aleutians

FocusSite:GeoPRISMS

File Format

ASCII

Quality

Shillington, Donna

LDEO

Event Logs

Line (MGL1110)

Device Info

Related Devices

Shillington, Donna

LDEO

Line (MGL1110)

Device Info

Seismic:MCS

Platform: Marcus G. Langseth (Array)

Shillington, Donna

LDEO

Station:Bottom (MGL1110)

Device Info

Seismic:OBS

Platform: Marcus G. Langseth (Array)

Shillington, Donna

LDEO

Station:WaterColumn:Released (MGL1110)

Device Info

Probe:Expendable:XBT

Sippican:T-5

Platform: Marcus G. Langseth

Shillington, Donna

LDEO

Station:WaterColumn:Released (MGL1110)

Device Info

Probe:Expendable:XCTD

Sippican:XCTD-1

Platform: Marcus G. Langseth

Shillington, Donna

LDEO

Station:WaterColumn:Released (MGL1110)

Device Info

Probe:Expendable:XSV

Sippican:XSV-02

Platform: Marcus G. Langseth

Shillington, Donna

LDEO

Seismic Acquisition Parameters

Download As Text

MGL1110_ACQ001 (Lines: Sequence numbers 8-10)

Source Information

AirGun (BOLT:1500LL)

Source Number: 36

Volume (cu in): 6600

Pressure (psi): 2000

Depth (m): 12

Shot Interval (m): 62.5

Distance to Near Channel (m): 325.84

Distance to Antenna (m): 222.7

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 2

Channels Per Cable: 636

Channels Recorded: 1272

Group Spacing (m): 12.5

Cable Spacing (m): 450

Cable Length (m): 7950

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

CNAV 3050 - primary

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 960

Sample Interval (msec): 2

Record Length (sec): 22.528

Details

Near channel numbers were 636 and 1272

Streamer 1 was towed at a depth of 9m, Streamer 2 at 12m

MGL1110_ACQ002 (Lines: Sequence numbers 11-26)

Source Information

AirGun (BOLT:1500LL)

Source Number: 36

Volume (cu in): 6600

Pressure (psi): 2000

Depth (m): 12

Shot Interval (m): 62.5

Distance to Antenna (m): 222.7

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 2

Channels Per Cable: 636

Channels Recorded: 1272

Group Spacing (m): 12.5

Cable Spacing (m): 225

Cable Length (m): 7950

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

CNAV 3050 - primary

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 960

Sample Interval (msec): 2

Details

Streamer 1 was towed at a depth of 9m, Streamer 2 at 12m

Streamer 1 was towed from the stern, distance from center of source to near group was 235.68m

Streamer 2 was towed from the paravane, distance from center of source to near group was 325.84m

Near channel numbers were Streamer 1: 636 and Streamer 2 : 1272

Lines 11-26 were recorded for 22.528s except for part of Line 24 which was recorded only for 18.430s

MGL1110_ACQ003 (Lines: Sequence numbers 27-33)

Source Information

AirGun (BOLT:1500LL)

Source Number: 36

Volume (cu in): 6600

Pressure (psi): 2000

Depth (m): 12

Shot Interval (m): 62.5

Distance to Near Channel (m): 325.84

Distance to Antenna (m): 222.7

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): 7950

Cable Depth (m): 12

Near Channel Number: 636

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

CNAV 3050 - primary

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 960

Sample Interval (msec): 2

Details

Data was recorded by a single streamer, Streamer 2, towed from the paravane

Distance from center of source to near group was 325.84m

Lines 27-33 were recorded for 22.528s except for part of Line 29 which was recorded only for 18.430s

org.marine-geo:MGL1110_ACQ001 (Lines: )

Source Information

AirGun

Receiver Information

Hydrophone:Streamer

Used Active Tail Buoy: false

Used Compass Birds: false

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): 235.68

Antenna to Source (m): 222.7

Number of Channels Recorded: null

Channel Length (m): null

Cable Receiver Depth (m): null

Source Volume (cubicInches): 6600

Source Pressure (bars): null

Source Number: 10

Source Depth (m): null

Shot Control: null

Shot Interval (s or m): null

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no

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