Seismic Reflection/Refraction Data at the Academic Seismic Portal
Expeditions / Compilations
Maurice Ewing
Raw
Acquisition Information
Raw Data Sets
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Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/321328
Raw Multi-Channel Seismic Shot Data from the Pacific Ocean, offshore Costa Rica and Nicaragua, acquired during the R/V Maurice Ewing expedition EW0005 (2000)
Locale
CentralAmerica
SubductionZone
File Format
SEGY
Quality
0
McIntosh, Kirk
UTIG
Silver, Eli
UCSC
Ahmed, 2003
Berhorst, 2006
McIntosh et al., 2007
Event Logs
Device Info
Seismic: MCS
Platform: Maurice Ewing (Array)
McIntosh, Kirk
UTIG
Seismic Acquisition Parameters
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
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