Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

EW0408

Maurice Ewing

Processed

Raw

Acquisition Information

Raw Data Sets

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Seismic:Ancillary

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

Quality

Jaeger, John

Seismic:Navigation

Raw Seismic Navigation Data from the Southeast Alaska Margin acquired during the R/V Maurice Ewing expedition EW0408 (2004)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

File Format

Quality

Details

These UKOOA P2/94 files have not been processed. For this cruise, the Seismic Shot Point Navigation data provide the primary seismic navigation source for seismic data processing.

Jaeger, John

Data Set References

Seismic:Navigation

Seismic Navigation Data from the Southeast Alaska Margin acquired during the R/V Maurice Ewing expedition EW0408 (2004)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

File Format

Quality

Details

These UKOOA P1/90 files have not been processed. For this cruise, the Seismic Shot Point Navigation data provide the primary seismic navigation source for seismic data processing.

Jaeger, John

Data Set References

Seismic:Navigation:ShotTime

Data DOI: 10.1594/IEDA/303720

Seismic Shot Point Navigation Data from the Southeast Alaska Margin acquired during the R/V Maurice Ewing expedition EW0408 (2004)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

File Format

ASCII:TSN

Quality

Details

This dataset, Seismic Shot Point Navigation data, provides the primary seismic navigation source for this cruise and should be used for seismic data processing.

Jaeger, John

Mix, Alan

OSU

Data Set References

Seismic:Reflection:MCS

Data DOI: 10.1594/IEDA/303707

Raw Multi-Channel Seismic Shot Data from the Southeast Alaska Margin acquired during the R/V Maurice Ewing expedition EW0408 (2004)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

File Format

SEGY

Quality

Jaeger, John

Mix, Alan

OSU

Data Set References

Event Logs

Line (EW0408)

Device Info

Related Devices

Jaeger, John

Line (EW0408)

Device Info

Seismic:MCS

Platform: Maurice Ewing (Array)

Mix, Alan

OSU

Seismic Acquisition Parameters

Download As Text

EW0408_ACQ001 (Lines: GOA3101-GOA3102)

Source Information

AirGun (SERCEL:GI45/45)

Source Number: 2

Volume (cu in): 180

Pressure (psi): 2000

Depth (m): 3

Shot Interval (m): 25

Distance to Antenna (m): 88.6

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 120

Channels Recorded: 120

Group Spacing (m): 6.25

Cable Depth (m): 3

Near Channel Number: 120

Used Active Tail Buoy: false

Used Compass Birds: true

Nav System

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 1

Record Length (sec): 8

Details

EW0408_ACQ002 (Lines: GOA3201-GOA3202)

Source Information

AirGun (SERCEL:GI105/105)

Source Number: 2

Volume (cu in): 420

Pressure (psi): 2000

Depth (m): 3

Shot Interval (m): 25

Distance to Antenna (m): 88.6

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 120

Channels Recorded: 120

Group Spacing (m): 6.25

Cable Depth (m): 3

Near Channel Number: 120

Used Active Tail Buoy: false

Used Compass Birds: true

Nav System

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 1

Record Length (sec): 8

Details

EW0408_ACQ003 (Lines: GOA0701-GOA0702)

Source Information

AirGun (SERCEL:GI45/45)

Source Number: 2

Volume (cu in): 180

Pressure (psi): 2000

Depth (m): 3

Shot Interval (m): 25

Distance to Antenna (m): 88.6

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 120

Channels Recorded: 120

Group Spacing (m): 6.25

Cable Depth (m): 3

Near Channel Number: 120

Used Active Tail Buoy: false

Used Compass Birds: true

Nav System

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 1

Record Length (sec): 4

Details

EW0408_ACQ004 (Lines: GOA1102-GOA1103,GOA1401-GOA1901,GOA2101-GOA2101C)

Source Information

AirGun (SERCEL:GI45/45)

Source Number: 2

Volume (cu in): 180

Pressure (psi): 2000

Depth (m): 3

Shot Interval (m): 25

Distance to Antenna (m): 88.6

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 60

Channels Recorded: 60

Group Spacing (m): 6.25

Cable Depth (m): 3

Near Channel Number: 60

Used Active Tail Buoy: false

Used Compass Birds: true

Nav System

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 1

Record Length (sec): 4

Details

EW0408_ACQ005 (Lines: GOA1301-GOA1303)

Source Information

AirGun (SERCEL:GI45/45)

Source Number: 2

Volume (cu in): 180

Pressure (psi): 2000

Depth (m): 3

Shot Interval (m): 25

Distance to Antenna (m): 88.6

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 120

Channels Recorded: 120

Group Spacing (m): 6.25

Cable Depth (m): 3

Near Channel Number: 120

Used Active Tail Buoy: false

Used Compass Birds: true

Nav System

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 1

Record Length (sec): 4

Details

EW0408_ACQ006 (Lines: GOA2001-GOA2003, GOA2501-GOA3002)

Source Information

AirGun (SERCEL:GI45/45)

Source Number: 2

Volume (cu in): 180

Pressure (psi): 2000

Depth (m): 3

Shot Interval (m): 12.5

Distance to Antenna (m): 88.6

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 120

Channels Recorded: 120

Group Spacing (m): 6.25

Cable Depth (m): 3

Near Channel Number: 120

Used Active Tail Buoy: false

Used Compass Birds: true

Nav System

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 1

Record Length (sec): 4

Details

edu.utexas.ig:ew0408_acq001 (Lines: )

Source Information

NotApplicable

Receiver Information

Hydrophone:Streamer

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

WGS84

Acquisition System

Digital

Name: Syntrak

Details

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air_GI

Acquisition System Name: Syntrak

Acquisition System Type: digital

Seismic Nav System: null

Survey Datum: WGS84

Source to Near Channel (m): 55: Lines goa1102-goa1103, goa1401-goa1901, goa2101-goa2101c; 186: Lines goa0701-goa0702; 111: Lines goa1301-goa1303, goa2001-goa2003, goa2501-goa3002, goa3101-goa3102, goa3201-goa3202

Antenna to Source (m): 88.6

Number of Channels Recorded: 60: Lines goa1102-goa1103, goa1401-goa1901, goa2101-goa2101C<br>120: Lines goa0701-goa0702, goa1301-goa1303, goa2001-goa2003, goa2501-goa3002, goa3101-goa3102, goa3201-goa3202

Channel Length (m): 6.25

Cable Receiver Depth (m): 3

Source Volume (cubicInches): 180: line(s) GOA0701-GOA0702; GOA1301-GOA1303; GOA2101-GOA2101C; GOA2001-GOA2003; GOA2501-GOA3002; GOA3101-GOA3102; 420: line(s) GOA3201-GOA3202; GOA1102-GOA1103; GOA1401-GOA1901.

Source Pressure (bars): 138

Source Number: 2

Source Depth (m): 3

Shot Control: distance

Shot Interval (s or m): 25: Lines gao1102-goa1103; goa0701-goa0702; goa1401-goa1901; goa1301-goa1303; goa2101-goa2101c; goa3101-goa3102; goa3201-goa3202; 12.5: Lines goa2001-goa2003; goa2501-goa3002

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no

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