Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

EW9101

Maurice Ewing

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

AntarcticPeninsula

Peninsula

Quality

Mutter, John

LDEO

Seismic:Reflection:MCS

Data DOI: 10.1594/IEDA/306923

Raw Multi-Channel Seismic Shot Data from the Antarctic Peninsula acquired during R/V Maurice Ewing expedition EW9101 (1991)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

AntarcticPeninsula

Peninsula

File Format

SEGY

Quality

Mutter, John

LDEO

Austin, James

LDEO

Shipley, Thomas

UTIG

Dalziel, Ian

UTIG

Data Set References

Event Logs

Line (EW9101)

Device Info

Related Devices

Mutter, John

LDEO

Line (EW9101)

Device Info

Seismic:MCS

Platform: Maurice Ewing (Array)

Hayes, Dennis

LDEO

Seismic Acquisition Parameters

Download As Text

EW9101_ACQ001 (Lines: Sequences 1-21,33-35,37-39,41-46)

Source Information

AirGun (BOLT:1500C)

Source Number: 20

Volume (cu in): 8385

Pressure (psi): 2000

Depth (m): 9

Distance to Near Channel (m): 263

Distance to Antenna (m): 95

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 120

Channels Recorded: 120

Group Spacing (m): 25

Cable Length (m): 3000

Cable Depth (m): 8

Near Channel Number: 120

Used Active Tail Buoy: false

Used Compass Birds: true

Nav System

GPS

WGS84

Acquisition System

Digital

Name: DSS240

Sample Interval (msec): 4

Record Length (sec): 16

Details

The AP lines are Seq 01-32, Lines 1035-1066: 144 channels originally recorded, 120 channels MCS, 144 archived

The SAP lines are Seq 33-46, Lines 1067-1080: 144 channels originally recorded, 120 channels MCS, 120 archived

Shot Interval was 20 seconds for ~50 meters.

EW9101_ACQ002 (Lines: Sequences 22-32,36,40)

Source Information

AirGun (BOLT:1500C)

Source Number: 20

Volume (cu in): 8385

Pressure (psi): 2000

Depth (m): 9

Distance to Near Channel (m): 263

Distance to Antenna (m): 95

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 120

Channels Recorded: 120

Group Spacing (m): 25

Cable Length (m): 3000

Cable Depth (m): 8

Near Channel Number: 120

Used Active Tail Buoy: false

Used Compass Birds: true

Nav System

GPS

WGS84

Acquisition System

Digital

Name: DSS240

Sample Interval (msec): 4

Record Length (sec): 12

Details

The AP lines are Seq 01-32, Lines 1035-1066: 144 channels originally recorded, 120 channels MCS, 144 archived

The SAP lines are Seq 33-46, Lines 1067-1080: 144 channels originally recorded, 120 channels MCS, 120 archived

Shot Interval was 20 seconds for ~50 meters.

edu.utexas.ig:ew9101_acq001 (Lines: )

Source Information

AirGun

Receiver Information

Hydrophone:Streamer

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

GPS satellite navigation

WGS84

Acquisition System

Digital

Name: DSS 240

Details

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air

Acquisition System Name: DSS 240

Acquisition System Type: digital

Seismic Nav System: GPS satellite navigation

Survey Datum: WGS84

Source to Near Channel (m): 263

Antenna to Source (m): 95

Number of Channels Recorded: 120

Channel Length (m): 25

Cable Receiver Depth (m): 8

Source Volume (cubicInches): 8385

Source Pressure (bars): 138

Source Number: 20

Source Depth (m): 9

Shot Control: time

Shot Interval (s or m): 20: seconds interval for ~ 50 meters

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no

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