Seismic:Navigation:ShotTime
Seismic Shot Point Navigation Data from the East Pacific Rise Spreading Center acquired during R/V Maurice Ewing expedition EW9102 (1991)
This data set was acquired with the LDEO Multi-Channel Seismic system during R/V Maurice Ewing expedition EW9102 conducted in 1991 (Chief Scientist: Dr. Robert Detrick). These data files are of ASCII format and include Seismic Shot Point Navigation data that provide the primary seismic navigation source for this cruise. Data were acquired as part of the project: Two-Ship Multichannel Seismic Investigation of the East Pacific Rise South of the Garrett Fracture Zone, and funding was provided by NSF grants: OCE90-12596, OCE90-12707, OCE90-12781, OCE91-02899, and OCE92-96017. These data are cited by Mutter et al., 1995.
Detrick, Robert
Investigator
URI
Mutter, John
Investigator
LDEO
Device Info
Seismic: MCS
LDEO
Platform
Maurice Ewing (Array)
LDEO
Awards
Data DOI
Quality
1
A level of processing has been undertaken, ensuring quality control (e.g. ping edited sonar data, edited navigation data).
Data Files
References
Acquisition Information
Documents
Data Citation Information
Related Data Sets
ISO/XML Metadata
References
Mutter et al., 1995 Seismic Images of Active Magma Systems Beneath the East Pacific Rise Between 17Â 05' and 17Â 35'S Science 268. doi: 10.1126/science.268.5209.391
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XML
MGDS formatted data set xml report containing verbose file and data set level metadata
ISO XML
ISO 19115-compliant xml report containing general data set level metadata
Related Acquisition Information
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
How To Cite This Data
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Data DOI:
10.1594/IEDA/308534
Raw Multi-Channel Seismic Shot Data from the East Pacific Rise Spreading Center acquired during R/V Maurice Ewing expedition EW9102 (1991)
Locale
EPR
SpreadingCenter
File Format
SEGY
Quality
0
Detrick, Robert
URI
Mutter, John
LDEO

Data DOI:
10.1594/IEDA/321939
Raw Wide-Angle Shot Data (Sonobuoy) from the East Pacific Rise Spreading Center acquired during the Maurice Ewing expedition EW9102 (1991)
Platform Info
Array:Maurice Ewing
LDEO
Device Info
Seismic: Sonobuoy
Events
Locale
EPR
SpreadingCenter
File Format
SEGY
Quality
0
Detrick, Robert
URI
Mutter, John
LDEO
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