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Shapefile of Processed ship-based Navigation Data from the East Pacific Rise Spreading Center acquired during the Maurice Ewing expedition EW9102 (1991)
This data set was acquired with a ship-based Navigation system during Maurice Ewing expedition EW9102 conducted in 1991 (Chief Scientist: Dr. Robert Detrick). These data files are of Shapefile format and include Navigation data and were processed after data collection. Data were acquired as part of the project(s): Two-Ship Multichannel Seismic Investigation of the East Pacific Rise South of the Garret Fracture Zone, and funding was provided by NSF grant(s): OCE90-12596, OCE90-12707, OCE90-12781, OCE91-02899, and OCE92-96017.
Detrick, Robert
Investigator
URI
Quality
1
A level of processing has been undertaken, ensuring quality control (e.g. ping edited sonar data, edited navigation data).
Data Files
Documents
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XML
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ISO 19115-compliant xml report containing general data set level metadata
Seismic Acquisition Parameters
Download as Text: EW9102
EW9102_ACQ001 (Lines: 1081-1090, 1111, 1114, 1126, 1137)
Source Information
AirGun (BOLT:1500C)
Source Number: 10
Volume (cu in): 4193
Pressure (psi): 2000
Shot Interval (sec): 10
Distance to Near Channel (m): 358
Distance to Antenna (m): 95
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 160
Channels Recorded: 160
Group Spacing (m): 25
Near Channel Number: 160
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Acquisition System
Digital
Name: DSS240
Sample Interval (msec): 4
Record Length (sec): 8.8
Details
See the additional descriptive acquisition information in the Report:Technical:Seismic:AcquisitionParameters file
This was a two ship cruise. See additional information for the cruise TERA01WT at http://www.marine-geo.org/tools/search/entry.php?id=TERA01WT
EW9102_ACQ002 (Lines: 1091, 1106-1110, 1112-1113, 1115-1125, 1136, 1139-1144)
Source Information
AirGun (BOLT:1500C)
Source Number: 20
Volume (cu in): 8385
Pressure (psi): 2000
Shot Interval (sec): 20
Distance to Near Channel (m): 358
Distance to Antenna (m): 95
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 160
Channels Recorded: 160
Group Spacing (m): 25
Near Channel Number: 160
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Acquisition System
Digital
Name: DSS240
Sample Interval (msec): 4
Record Length (sec): 18.75
Details
See the additional descriptive acquisition information in the Report:Technical:Seismic:AcquisitionParameters file
This was a two ship cruise. See additional information for the cruise TERA01WT at http://www.marine-geo.org/tools/search/entry.php?id=TERA01WT
EW9102_ACQ003 (Lines: 1149,1151)
Source Information
AirGun (BOLT:1500C)
Source Number: 10
Volume (cu in): 4193
Pressure (psi): 2000
Shot Interval (sec): 10
Distance to Near Channel (m): 358
Distance to Antenna (m): 95
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 160
Channels Recorded: 160
Group Spacing (m): 25
Near Channel Number: 160
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Acquisition System
Digital
Name: DSS240
Sample Interval (msec): 4
Record Length (sec): 8.7
Details
See the additional descriptive acquisition information in the Seismic:Ancillary file
This was a two ship cruise. See additional information for the cruise TERA01WT at http://www.marine-geo.org/tools/search/entry.php?id=TERA01WT
EW9102_ACQ004 (Lines: 1092-1105, 1127-1135)
Source Information
AirGun (BOLT:1500C)
Source Number: 20
Volume (cu in): 8385
Pressure (psi): 2000
Shot Interval (sec): 60
Distance to Near Channel (m): 358
Distance to Antenna (m): 95
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 160
Channels Recorded: 160
Group Spacing (m): 25
Near Channel Number: 160
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Acquisition System
Digital
Name: DSS240
Sample Interval (msec): 4
Record Length (sec): 18.75
Details
See the additional descriptive acquisition information in the Report:Technical:Seismic:AcquisitionParameters file
This was a two ship cruise. See additional information for the cruise TERA01WT at http://www.marine-geo.org/tools/search/entry.php?id=TERA01WT
EW9102_ACQ005 (Lines: 1138)
Source Information
AirGun (BOLT:1500C)
Source Number: 6
Volume (cu in): 2620
Pressure (psi): 2000
Shot Interval (sec): 40
Distance to Near Channel (m): 358
Distance to Antenna (m): 95
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 160
Channels Recorded: 160
Group Spacing (m): 25
Near Channel Number: 160
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Acquisition System
Digital
Name: DSS240
Sample Interval (msec): 4
Record Length (sec): 18.75
Details
See the additional descriptive acquisition information in the Report:Technical:Seismic:AcquisitionParameters file
This was a two ship cruise. See additional information for the cruise TERA01WT at http://www.marine-geo.org/tools/search/entry.php?id=TERA01WT
EW9102_ACQ006 (Lines: 1145-1148,1150,1152)
Source Information
AirGun (BOLT:1500C)
Source Number: 20
Volume (cu in): 8385
Pressure (psi): 2000
Shot Interval (sec): 20
Distance to Near Channel (m): 358
Distance to Antenna (m): 95
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 160
Channels Recorded: 160
Group Spacing (m): 25
Near Channel Number: 160
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Acquisition System
Digital
Name: DSS240
Sample Interval (msec): 4
Record Length (sec): 18
Details
See the additional descriptive acquisition information in the Report:Technical:Seismic:AcquisitionParameters file
This was a two ship cruise. See additional information for the cruise TERA01WT at http://www.marine-geo.org/tools/search/entry.php?id=TERA01WT
edu.utexas.ig:ew9102_acq001 (Lines: )
Source Information
AirGun
Receiver Information
Hydrophone:Streamer
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
GPS, transit satellite
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, transit satellite
Survey Datum: WGS84
Source to Near Channel (m): 358
Antenna to Source (m): 95
Number of Channels Recorded: 160
Channel Length (m): 25
Cable Receiver Depth (m): unknown meters
Source Volume (cubicInches): 2620: line(s) 1138.<br>4193: line(s) 1081-1090; 1111;1114.1126;1137; 1149; 1152; 1149;1152.<br>8385s: line(s) 1091; 1106-1110; 1112-1113; 1115-1125; 1136;1139-1144; 1092-1105; 1145-1148;1150;1152.
Source Pressure (bars): 138
Source Number: 6: line(s) 1138.<br>10: line(s) 1081-1090; 1111;1114.1126;1137; 1149; 1152.<br>20: line(s) 1091; 1106-1110; 1112-1113; 1115-1125; 1136;1139-1144; 1092-1105; 1145-1148;1150;1152
Source Depth (m): unknown meters
Shot Control: time
Shot Interval (s or m): 10: line(s) 1081-1090; 1111;1114.1126;1137; 1149; 1152; 20: line(s) 1091; 1106-1110; 1112-1113; 1115-1125; 1136; 1139-1144; 1145-1148; 1150;1152; 40: line(s) 1138; >60: line(s) 1092-1105.
Compass Birds: no
Tail Buoy Positioning: no
Recording Delay: no
EW9102 Documents
Cruise
EW9102_science_cruise_rpt.pdf (3.5MB)
PDF
Cruise
e9102.pdf (41.0kB)
PDF
Seismic:AcquisitionParametersDetails
EW9102.metadata.txt (5.0kB)
ASCII
Sonobuoy Information
EW9102.sb.README (464B)
ASCII
Related Data Sets
Sort by:
Navigation:Primary
Data DOI:
10.1594/IEDA/311422
Processed ship-based Navigation Data from the East Pacific Rise Spreading Center acquired during the Maurice Ewing expedition EW9102 (1991)
Platform Info
Maurice Ewing
LDEO
Device Info
Navigation
Locale
EPR
SpreadingCenter
File Format
MGDS:Nav
Quality
1
Detrick, Robert
URI
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