EW0001 Navigation:Primary

Processed ship-based Navigation Data acquired during the Maurice Ewing expedition EW0001 (2000)

This data set was acquired with a ship-based Navigation system during Maurice Ewing expedition EW0001 conducted in 2000 (Chief Scientist: Dr. Craig Fulthorpe). These data files are of Text File (ASCII) format and include Navigation data and were processed after data collection. Data were acquired as part of the project(s): Global and Local Controls on Depositional Cyclicity: The Canterbury Basin, New Zealand, and funding was provided by NSF grant(s): OCE97-31031.

Fulthorpe, Craig

Investigator

UTIG

Device Info

Navigation

Platform

Maurice Ewing

LDEO

Awards

OCE97-31031

Data DOI

10.1594/IEDA/311282

Quality

A level of processing has been undertaken, ensuring quality control (e.g. ping edited sonar data, edited navigation data).

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Data Files

Documents

Data Citation Information

Related Data Sets

ISO/XML Metadata

Seismic Acquisition Parameters

Download as Text: EW0001

EW0001_ACQ001 (Lines: Sequences 1-9)

Source Information

AirGun (SERCEL:GI45/45)

Source Number: 2

Volume (cu in): 90

Pressure (psi): 2000

Depth (m): 2.5

Shot Interval (sec): 5

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 96

Group Spacing (m): 12.5

Cable Length (m): 1200

Used Compass Birds: true

Nav System

Trimble DGPS (PCODE GPS not working)

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 1

Record Length (sec): 3

Details

Cable Depth was increased from 2.5m to 3.5m in bad weather

Antenna to Source in EW0004 diagram showed Trimble was 47.8m from stern and PCCODE was 16m from stern

Source to Near Channel is given as 29.25m in cruise report text and 26.5m in cruise report diagram

EW0001_ACQ002 (Lines: Sequences 10-65)

Source Information

AirGun (SERCEL:GI45/45)

Source Number: 2

Volume (cu in): 90

Pressure (psi): 2000

Depth (m): 2.5

Shot Interval (sec): 5

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 120

Group Spacing (m): 12.5

Cable Length (m): 1500

Near Channel Number: 120

Used Compass Birds: true

Nav System

Trimble DGPS (PCODE GPS not working)

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 1

Record Length (sec): 3

Details

Cable Depth was increased from 2.5m to 3.5m in bad weather

Antenna to Source in EW0004 diagram showed Trimble was 47.8m from stern and PCCODE was 16m from stern

Source to Near Channel is given as 29.25m in EW0001 cruise report text and 26.5m in cruise report diagram

edu.utexas.ig:ew0001_acq001 (Lines: )

Source Information

NotApplicable

Receiver Information

Hydrophone:Streamer

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

GPS along with a Furuno doppler speed logger

WGS84

Acquisition System

Digital

Name: Syntrack 480-24

Details

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air_GI

Acquisition System Name: Syntrack 480-24

Acquisition System Type: digital

Seismic Nav System: GPS along with a Furuno doppler speed logger

Survey Datum: WGS84

Source to Near Channel (m): 29.25

Antenna to Source (m): null

Number of Channels Recorded: 96; 120

Channel Length (m): 12.5

Cable Receiver Depth (m): 2.5: normally; 3.5: in bad weather

Source Volume (cubicInches): 90

Source Pressure (bars): 138

Source Number: 2

Source Depth (m): 2.5

Shot Control: null

Shot Interval (s or m): null

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no

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