Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

EW0305

Maurice Ewing

Processed

Acquisition Information

Processed Data Sets

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Seismic:Velocity:Model

Seismic P-wave velocity models (netCDF format) for Hess Deep from a 2003 combined MCS/OBS survey (EW0305)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:OBS

Events

Line Log

Locale

HessDeep

Rift

File Format

NetCDF:Grid

Quality

Christeson, Gail

UTIG

Seismic:Velocity:Model

Seismic velocity model navigation files (ASCII format) for Hess Deep from a 2003 combined MCS/OBS survey (EW0305)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:OBS

Locale

HessDeep

Rift

File Format

ASCII

Quality

Christeson, Gail

UTIG

Seismic:Velocity:Model

Velocity model boundary layer files (ASCII format) for Hess Deep from a 2003 combined MCS/OBS survey (EW0305)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:OBS

Locale

HessDeep

Rift

File Format

ASCII

Quality

Christeson, Gail

UTIG

Event Logs

Line (EW0305)

Device Info

Related Devices

Christeson, Gail

UTIG

Line (EW0305)

Device Info

Seismic:MCS

LDEO

Platform: Maurice Ewing (Array)

Seismic:MCS

Platform: Maurice Ewing (Array)

Seismic:OBS

Platform: Maurice Ewing (Array)

Christeson, Gail

UTIG

Station:Bottom:Deployed (EW0305)

Device Info

Seismic:OBS

Platform: Maurice Ewing (Array)

Christeson, Gail

UTIG

Seismic Acquisition Parameters

Download As Text

EW0305_ACQ001 (Lines: 101-104,107-108,111-206, 208-315)

Source Information

AirGun (BOLT:1500C)

Source Number: 10

Volume (cu in): 3050

Pressure (psi): 2000

Depth (m): 7

Shot Interval (m): 38

Distance to Near Channel (m): 185.5

Distance to Antenna (m): 88.6

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 240

Channels Recorded: 240

Group Spacing (m): 25

Cable Depth (m): 10

Near Channel Number: 240

Used Active Tail Buoy: false

Nav System

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 4

Record Length (sec): 11

Details

EW0305_ACQ002 (Lines: 105-106,109-110,207)

Source Information

AirGun (BOLT:1500C)

Source Number: 10

Volume (cu in): 3050

Pressure (psi): 2000

Depth (m): 7

Shot Interval (m): 38

Distance to Near Channel (m): 185.5

Distance to Antenna (m): 88.6

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 240

Channels Recorded: 240

Group Spacing (m): 25

Cable Depth (m): 10

Near Channel Number: 240

Used Active Tail Buoy: false

Nav System

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 4

Record Length (sec): 12

Details

edu.utexas.ig:ew0305_acq001 (Lines: )

Source Information

AirGun

Receiver Information

NotApplicable

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

GPS

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 480

Details

Receiver Type: Hydrophone_Streamer; Seismometer_OceanBottom

Source Type: SeismicSource_Gun_Air

Acquisition System Name: Syntron Syntrak 480

Acquisition System Type: digital

Seismic Nav System: GPS

Survey Datum: WGS84

Source to Near Channel (m): 185.5

Antenna to Source (m): 88.6

Number of Channels Recorded: 240

Channel Length (m): 25

Cable Receiver Depth (m): 10

Source Volume (cubicInches): 3050

Source Pressure (bars): 138

Source Number: 10

Source Depth (m): 7

Shot Control: distance

Shot Interval (s or m): 37.5

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no

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