Marine Geoscience Data System

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

0

Diebold, John

LDEO

Seismic:Navigation:ShotTime

Data DOI: 10.1594/IEDA/300381

Seismic Shot Point Navigation Data from the Southeast Alaska Margin acquired during R/V Maurice Ewing expedition EW9412 (1994)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

File Format

ASCII:TSN

Quality

1

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.

Diebold, John

LDEO

Seismic:Reflection:MCS

Data DOI: 10.1594/IEDA/300382

Raw Multi-Channel Seismic Shot Data from the Southeast Alaska Margin acquired during R/V Maurice Ewing expedition EW9412 (1994)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

File Format

SEGY

Quality

0

Diebold, John

LDEO

Event Logs

Line (EW9412)

Device Info

Related Devices

Diebold, John

LDEO

Line (EW9412)

Device Info

Seismic:MCS

Platform: Maurice Ewing (Array)

Diebold, John

LDEO

Seismic Acquisition Parameters

Download As Text

EW9412_ACQ001 (Lines: 1250,1251,1253,1255,1257,1259-1265)

Source Information

AirGun (BOLT:1500C)

Source Number: 20

Volume (cu in): 8400

Pressure (psi): 2000

Depth (m): 6

Shot Interval (sec): 20

Distance to Near Channel (m): 245

Distance to Antenna (m): 95

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 224

Channels Recorded: 224

Group Spacing (m): 12.5

Cable Depth (m): 8

Near Channel Number: 224

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

Acquisition System

Digital

Name: DMS2000

Sample Interval (msec): 2

Record Length (sec): 16.5

Details

EW9412_ACQ002 (Lines: 1252,1254,1256,1258)

Source Information

AirGun (BOLT:1500C)

Source Number: 20

Volume (cu in): 8400

Pressure (psi): 2000

Depth (m): 6

Shot Interval (sec): 59

Distance to Near Channel (m): 245

Distance to Antenna (m): 95

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 224

Channels Recorded: 224

Group Spacing (m): 12.5

Cable Depth (m): 8

Near Channel Number: 224

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

Acquisition System

Digital

Name: DMS2000

Sample Interval (msec): 2

Record Length (sec): 20

Details

edu.utexas.ig:ew9412_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: DMS 2000

Details

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air

Acquisition System Name: DMS 2000

Acquisition System Type: digital

Seismic Nav System: null

Survey Datum: WGS84

Source to Near Channel (m): 245

Antenna to Source (m): 95

Number of Channels Recorded: 224

Channel Length (m): 12.5

Cable Receiver Depth (m): 7.5

Source Volume (cubicInches): 8400

Source Pressure (bars): 138

Source Number: 20

Source Depth (m): 11-Jun

Shot Control: time

Shot Interval (s or m): 20: Lines 1250;1251;1253;1255;1257; 1259-1265; 59: Lines 1252; 1254; 125; 1258

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no