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Processed multichannel seismic data off the western coast of Nicaragua and Costa Rica, acquired during R/V Maurice Ewing expedition EW0005 (2000)
Part of the Nicaragua Subduction Factory project, this survey collected over 2500km of seismic data and approximately 580km of OBH refraction data in order to document variations in the subducting Cocos plate structure and stratigraphy and the effects of these variations on the upper (Caribbean) plate. Funding was provided by NSF grants OCE-9905355 and OCE-9909859.
McIntosh, Kirk
Investigator
UTIG
Quality
2
The data have been processed/modified to a level beyond that of basic quality control (e.g. final processed sonar data, photo-mosaics).
Data Files
References
Acquisition Information
Documents
Related Data Sets
ISO/XML Metadata
References
Sallares et al., 2013 Overriding plate structure of the Nicaragua convergent margin: Relationship to the seismogenic zone of the 1992 tsunami earthquake Geochem Geophys Geosyst 14. doi: 10.1002/ggge.20214
Ahmed, 2003 Imaging of the lower slope offshore Nicaragua and development of post critical migration methods Thesis .
Kelly, 2003 Subduction Dynamics at the Middle America Trench: New Constraints From Swath Bathymetry, Multichannel Seismic Data, and 10Be Thesis .
Berhorst, 2006 Die Struktur des aktiven Kontinentalhangs vor Nicaragua und Costa Rica: Marin-seismische Steil- und Weitwinkelmessungen Thesis .
McIntosh et al., 2007 The Nicaragua convergent margin: Seismic reflection imaging of the source of a tsunami earthquake, Costa Rica .
Download Data Set Metadata Report
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: EW0005
EW0005_ACQ001 (Lines: Sequences 06-07, 24-34, 36-38)
Source Information
AirGun (BOLT:1500C)
Source Number: 20
Volume (cu in): 6817
Pressure (psi): 2000
Shot Interval (m): 50
Distance to Near Channel (m): 188
Distance to Antenna (m): 56
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 240
Channels Recorded: 240
Group Spacing (m): 25
Cable Length (m): 6000
Cable Depth (m): 10
Near Channel Number: 240
Used Compass Birds: true
Nav System
Trimble Tasman Y-code GPS
WGS84
Acquisition System
Digital
Name: Syntrak 480
Sample Interval (msec): 4
Details
Record Length was 4 seconds for sequences 02, 03, 05-12, 14, 15, 16(SP 1-1425), 17-26, 27(SP 1-3003), 29(SP 953-2994), 30, 31(SP 2097-3039), 32, 33(SP 1235-2667), 34-38
Record Length was 5 seconds for sequences 01, 04, 13, 16(SP 1426-1447), 27(SP 3005-3688), 28, 29(SP 1-946), 31(SP 2097-3039), 33(SP 1-1225)
EW0005_ACQ002 (Lines: Sequences 02-05, 08-12, 14-23)
Source Information
AirGun (BOLT:1500C)
Source Number: 20
Volume (cu in): 6817
Pressure (psi): 2000
Shot Interval (sec): 20
Distance to Near Channel (m): 188
Distance to Antenna (m): 56
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 240
Channels Recorded: 240
Group Spacing (m): 25
Cable Length (m): 6000
Cable Depth (m): 10
Near Channel Number: 240
Used Compass Birds: true
Nav System
Trimble Tasman Y-code GPS
WGS84
Acquisition System
Digital
Name: Syntrak 480
Sample Interval (msec): 4
Details
Shot Interval of 20 seconds is about 50 meters
Record Length was 4 seconds for sequences 02, 03, 05-12, 14, 15, 16(SP 1-1425), 17-26, 27(SP 1-3003), 29(SP 953-2994), 30, 31(SP 2097-3039), 32, 33(SP 1235-2667), 34-38
Record Length was 5 seconds for sequences 01, 04, 13, 16(SP 1426-1447), 27(SP 3005-3688), 28, 29(SP 1-946), 31(SP 2097-3039), 33(SP 1-1225)
EW0005_ACQ003 (Lines: Sequences 01, 13)
Source Information
AirGun (BOLT:1500C)
Source Number: 20
Volume (cu in): 6817
Pressure (psi): 2000
Shot Interval (sec): 60
Distance to Near Channel (m): 188
Distance to Antenna (m): 56
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 240
Channels Recorded: 240
Group Spacing (m): 25
Cable Length (m): 6000
Cable Depth (m): 10
Near Channel Number: 240
Used Compass Birds: true
Nav System
Trimble Tasman Y-code GPS
WGS84
Acquisition System
Digital
Name: Syntrak 480
Sample Interval (msec): 4
Record Length (sec): 5
Details
Shot Interval of 60 seconds is about 125 meters
EW0005_ACQ004 (Lines: Sequence 35)
Source Information
AirGun (BOLT:1500C)
Source Number: 20
Volume (cu in): 6817
Pressure (psi): 2000
Shot Interval (m): 125
Distance to Near Channel (m): 188
Distance to Antenna (m): 56
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 240
Channels Recorded: 240
Group Spacing (m): 25
Cable Length (m): 6000
Cable Depth (m): 10
Near Channel Number: 240
Used Compass Birds: true
Nav System
Trimble Tasman Y-code GPS
WGS84
Acquisition System
Digital
Name: Syntrak 480
Sample Interval (msec): 4
Record Length (sec): 4
Details
edu.utexas.ig:ew0005_acq001 (Lines: )
Source Information
AirGun
Receiver Information
Hydrophone:Streamer
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Y-Code; Tasmon GPS receiver
WGS84
Acquisition System
Digital
Name: Syntrack 480-24
Details
Receiver Type: Hydrophone_Streamer
Source Type: SeismicSource_Gun_Air
Acquisition System Name: Syntrack 480-24
Acquisition System Type: digital
Seismic Nav System: Y-Code; Tasmon GPS receiver
Survey Datum: WGS84
Source to Near Channel (m): 188
Antenna to Source (m): 56
Number of Channels Recorded: 240
Channel Length (m): 25
Cable Receiver Depth (m): 80
Source Volume (cubicInches): 6817
Source Pressure (bars): 138
Source Number: 20
Source Depth (m): 6.5
Shot Control: distance
Shot Interval (s or m): 50
Compass Birds: no
Tail Buoy Positioning: no
Recording Delay: no
Data Set Documents
ew0005.seismicRecordingLog.pdf (6.8MB)
PDF
ew0005.compassPlots.pdf (416.0kB)
PDF
ew0005.obhPlots.pdf (19.6MB)
PDF
ew0005.seismicPlots.pdf (35.6MB)
PDF
ew0005.setbackOffset.pdf (1.9MB)
PDF
ew0005.shotDistancePlots.pdf (710.0kB)
PDF
ew0005.tapeListing.pdf (727.0kB)
PDF
Cruise
ew0005.cruiserpt.pdf (15.6MB)
PDF
Cruise
ew0005.tech.pdf (381.0kB)
PDF
ew0005.watchStanderLog.pdf (6.7MB)
PDF
EW0005 Documents
Cruise Report
EW0005.cruiserpt.pdf (15.6MB)
PDF
Cruise
EW0005_tech.pdf (381.0kB)
PDF
Related Data Sets
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Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/500008
Processed multichannel seismic data off the western coast of Nicaragua and Costa Rica, acquired during R/V Maurice Ewing expedition EW0005 (2000)
Locale
File Format
SEGY
Quality
2
McIntosh, Kirk
UTIG
Processed multichannel seismic data off the western coast of Nicaragua and Costa Rica, acquired during R/V Maurice Ewing expedition EW0005 (2000)
Locale
File Format
PDF
Quality
2
McIntosh, Kirk
UTIG
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