EW9101 - Marine Geoscience Data System

Sensor Data

Sort by:

Bathymetry:Singlebeam, Gravity:Field, Magnetic:Field

Device Info

Gravimeter, Magnetometer, Sonar:Multibeam

Maurice Ewing

Repository

MGDS

Format

MGD77

Austin, James

LDEO

Bathymetry:Swath

(Swath)

Device Info

Sonar:Multibeam

Maurice Ewing

Repository

NOAA:NCEI

Repository

MGDS

Format

MBSystem

Dalziel, Ian

UTIG

GMRT,

Navigation:Primary

Device Info

Navigation

Maurice Ewing

Repository

MGDS

Format

MGDS:Nav, SHP

Austin, James

LDEO

Seismic Reflection/Refraction

(Image Seismic, Segy)

Device Info

Seismic:MCS

Array:Maurice Ewing

Repository

MGDS

Format

ASCII, ASCII:TSN, PDF, SEGY

Alsop, Joyce

Austin, James

LDEO

Mutter, John

LDEO

Shipley, Thomas

UTIG

Dalziel, Ian

UTIG

Related References

Event Logs

Line

Device Info

Related Devices

Mutter, John

LDEO

Line

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

References

Barker and Austin, 1994 Crustal diapirism in Bransfield Strait, West Antarctica: Evidence for distributed extension in marginal-basin formation Geology 22. doi: 10.1130/0091-7613(1994)022<0657:CDIBSW>2.3.CO;2

Barker and Austin, 1998 Rift propagation, detachment faulting, and associated magmatism in Bransfield Strait, Antarctic Peninsula J. Geophys. Res. 103. doi: 10.1029/98JB01117

Barker, 1997 Structural evolution of Bransfield Strait, West Antarctica Ph.D. Dissertation .

McGinnis et al., 1993 Fracture Zone Control on Continental Margin Development, Multichannel Seismic Survey along the Southern Antarctic Peninsula Antarctic Journal of the United States 28(5).

Scientific Personnel

Alsop, Joyce

Investigator
(not in field)

LDEO

Austin, James

Scientist:Chief

LDEO

Dalziel, Ian

Scientist
(not in field)

UTIG

GMRT,

Investigator
(not in field)

LDEO

Hayes, Dennis

Scientist
(not in field)

LDEO

Mutter, John

Scientist:Co-Chief

LDEO

Shipley, Thomas

Scientist:Co-Chief

UTIG

Support Personnel

Blaes, Robert

Technician:Data

LDEO

Stennett, Joseph

Technician:Science

LDEO

Instruments

Gravimeter

Device Info

KSS-30

Bodenseewerk

Magnetometer

Device Info

V75

Varian Inc.

Navigation

Device Info

NotProvided

Sonar:Multibeam

Device Info

Hydrosweep DS

Atlas

Seismic:MCS

Device Info

NotProvided

LDEO

Platform Info

Maurice Ewing

Array

Seismic:MCS

Device Info

NotProvided

Platform Info

Maurice Ewing

Array