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

Lau

BackarcBasin

Quality

0

Details

includes streamer compass bird block,gun depths, navigation block information, segy history and shot time log status files

Harding, Alistair

SIO

Seismic:Navigation:ShotTime

Data DOI: 10.1594/IEDA/310227

Seismic Shot Point Navigation Data from the Lau Basin acquired during R/V Maurice Ewing expedition EW9914 (1999)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

Lau

BackarcBasin

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.

Harding, Alistair

SIO

Seismic:Reflection:MCS

Data DOI: 10.1594/IEDA/310225

Raw Multi-Channel Seismic Shot Data from the Lau Basin acquired during R/V Maurice Ewing expedition EW9914 (1999)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

Lau

BackarcBasin

File Format

SEGY

Quality

0

Harding, Alistair

SIO

Data Set References

Event Logs

Line (EW9914)

Device Info

Related Devices

Harding, Alistair

SIO

Line (EW9914)

Device Info

Seismic:MCS

Platform: Maurice Ewing (Array)

Harding, Alistair

SIO

Seismic Acquisition Parameters

Download As Text

EW9914_ACQ001 (Lines: 01)

Source Information

AirGun (BOLT:1500C)

Source Number: 10

Volume (cu in): 3048

Pressure (psi): 2000

Shot Interval (m): 37.5

Distance to Near Channel (m): 222.5

Distance to Antenna (m): 56

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 480

Channels Recorded: 480

Group Spacing (m): 12.5

Cable Length (m): 6000

Near Channel Number: 480

Used Compass Birds: true

Nav System

GPS

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 4

Record Length (sec): 10

Details

EW9914_ACQ002 (Lines: 02-61)

Source Information

AirGun (BOLT:1500C)

Source Number: 10

Volume (cu in): 3048

Pressure (psi): 2000

Shot Interval (m): 37.5

Distance to Near Channel (m): 190.6

Distance to Antenna (m): 56

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 480

Channels Recorded: 480

Group Spacing (m): 12.5

Cable Length (m): 6000

Near Channel Number: 480

Used Compass Birds: true

Nav System

GPS

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 4

Record Length (sec): 10

Details

edu.utexas.ig:ew9914_acq001 (Lines: )

Source Information

AirGun

Receiver Information

Hydrophone:Streamer

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

GPS

WGS84

Acquisition System

Digital

Name: Syntron

Details

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air

Acquisition System Name: Syntron

Acquisition System Type: digital

Seismic Nav System: GPS

Survey Datum: WGS84

Source to Near Channel (m): 222.5: Line 1; 190.6: All other lines

Antenna to Source (m): 56

Number of Channels Recorded: 480

Channel Length (m): 12.5

Cable Receiver Depth (m): unknown

Source Volume (cubicInches): 3048

Source Pressure (bars): unknown

Source Number: 10

Source Depth (m): unknown

Shot Control: time

Shot Interval (s or m): 16.2

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no