Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

EW9101

Maurice Ewing

Processed

Raw

Acquisition Information

Raw Data Sets

Sort by:

Bathymetry:Swath

Data at NOAA:NCEI

Platform Info

Maurice Ewing

LDEO

Device Info

Sonar:Multibeam

Atlas:Hydrosweep DS

Locale

AntarcticPeninsula

Peninsula

File Format

MBSystem

Quality

Dalziel, Ian

UTIG

Bathymetry:Swath

Data DOI: 10.1594/IEDA/305274

Raw ship-based Multibeam Sonar Data from the Antarctic Peninsula Peninsula acquired during R/V Maurice Ewing expedition EW9101 (1991)

Platform Info

Maurice Ewing

LDEO

Device Info

Sonar:Multibeam

Atlas:Hydrosweep DS

Locale

AntarcticPeninsula

Peninsula

File Format

MBSystem

Quality

Dalziel, Ian

UTIG

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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