Seismic Reflection/Refraction Data at the Academic Seismic Portal
Expeditions / Compilations
Marcus G. Langseth
Processed
Raw
Acquisition Information
Processed Data Sets
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Data DOI:
10.1594/IEDA/311789
Processed ship-based Navigation Data from the Central America Subduction Zone acquired during the Marcus G. Langseth expedition MGL0807 (2008)
Platform Info
Marcus G. Langseth
LDEO
Device Info
Navigation
C&C Technologies:CNAV
Locale
CentralAmerica
SubductionZone
File Format
MGDS:Nav
Quality
1
Holbrook, W. Steven
University of Wyoming
Shapefile of Processed ship-based Navigation Data from the Central America Subduction Zone acquired during the Marcus G. Langseth expedition MGL0807 (2008)
Platform Info
Marcus G. Langseth
LDEO
Device Info
Navigation
C&C Technologies:CNAV
Locale
CentralAmerica
SubductionZone
File Format
SHP
Quality
1
Holbrook, W. Steven
University of Wyoming
Raw Data Sets
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Raw ship-based Navigation Data from the Central America Subduction Zone acquired during the Marcus G. Langseth expedition MGL0807 (2008)
Platform Info
Marcus G. Langseth
LDEO
Device Info
Navigation
C&C Technologies:CNAV
Locale
CentralAmerica
SubductionZone
File Format
ASCII
Quality
0
Holbrook, W. Steven
University of Wyoming
Event Logs
Device Info
Seismic: MCS
LDEO
Platform: Marcus G. Langseth (Array)
Seismic: OBS
Platform: Marcus G. Langseth (Array)
Holbrook, W. Steven
University of Wyoming
Device Info
Seismic: OBS
Platform: New Horizon (Array)
Seismic: OBS
Platform: Marcus G. Langseth (Array)
Gregg, Patricia
WHOI
vanAvendonk, Harm
UTIG
Device Info
Probe: Expendable: XCP
Sippican
Platform: Marcus G. Langseth
Holbrook, W. Steven
University of Wyoming
Device Info
Probe: Expendable: XCTD
Sippican:XCTD-1
Platform: Marcus G. Langseth
Holbrook, W. Steven
University of Wyoming
Device Info
Probe: Expendable: XBT
Sippican:T-5
Platform: Marcus G. Langseth
Holbrook, W. Steven
University of Wyoming
Device Info
Probe: Expendable: XBT
Sippican:T-7
Platform: Marcus G. Langseth
Holbrook, W. Steven
University of Wyoming
Seismic Acquisition Parameters
MGL0807_ACQ001 (Lines: 2, 3, 5, 7, 8, 9, 11, 13)
Source Information
AirGun (BOLT:1500LL)
Source Number: 36
Volume (cu in): 6600
Pressure (psi): 2000
Depth (m): 9.6
Distance to Near Channel (m): 141.6
Distance to Antenna (m): 98.3
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 636
Channels Recorded: 636
Group Spacing (m): 12.5
Cable Length (m): 7950
Cable Depth (m): 9
Near Channel Number: 636
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav Primary
WGS84
Acquisition System
Digital
Name: Syntron Syntrak 960
Sample Interval (msec): 2
Details
Shot Spacing: 37.5m for sequence lines 02,07
50m for sequence line 02,03,05,08,09
100m for sequence line 11,13
Record Length: 10 secs for sequence line 07
14 secs for sequence line 08,09
15 secs for sequence line 02 (from shot 1276),03
16 secs for sequence line 02 (until shot 1270),05
20 secs for sequence line 11,13
MGL0807_ACQ002 (Lines: 14, 16, 18, 20, 22, 24, 26, 27, 29, 31, 32, 34-38, 40, 42-49)
Source Information
AirGun (BOLT:1500LL)
Source Number: 36
Volume (cu in): 6600
Pressure (psi): 2000
Depth (m): 9.6
Distance to Near Channel (m): 139.3
Distance to Antenna (m): 100.6
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 636
Group Spacing (m): 12.5
Cable Length (m): 7950
Cable Depth (m): 6
Near Channel Number: 636
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav Primary
WGS84
Acquisition System
Digital
Name: Syntron Syntrak 960
Details
Shot Spacing: 25m for sequence line 14
37.5m for sequence lines 34-38,40
50m for sequence lines 29,31,32,42-49
100m for sequence line 20
150m for sequence lines 22,24,26,27
Sample Interval: 500 microsecs for sequence lines 34-38,40
2000 microsecs for sequence lines 16,18,20,22,24,26,27,29,31,32,42-49
Record Length: 8 secs for sequence line 14
10 secs for sequence lines 34-38,40
15 secs for sequence line 49
16 secs for sequence lines 22,24,26,27,29,31,32,42-48
20 secs for sequence lines 16,18,20
240 channels recorded for sequence lines 34-38,40
480 channels recorded for sequence line 14
636 channels recorded for sequence lines 16,18,20,22,24,26,27,29,31,32,42-49
MGL0807_ACQ003 (Lines: 51-56, 58, 59, 71-73,75-81)
Source Information
AirGun (BOLT:1500LL)
Source Number: 36
Volume (cu in): 6600
Pressure (psi): 2000
Depth (m): 9.6
Distance to Near Channel (m): 139.3
Distance to Antenna (m): 150.6
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 636
Group Spacing (m): 12.5
Cable Length (m): 7950
Cable Depth (m): 6
Near Channel Number: 636
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav Primary
WGS84
Acquisition System
Digital
Name: Syntron Syntrak 960
Details
Shot Spacing: 25m for sequence lines 53-56,58,59,77-79
50m for sequence lines 52,64,73,76,80,81
150m for sequence lines 67,68,70,71,75
200m for sequence lines 61,65,69
250m for sequence lines 60,62,63,66
500m for sequence line 51
Sample Interval: 500 microsecs for sequence lines 77-79
1000 microsecs for sequence lines 52-59
2000 microsecs for sequence lines 51, 60-71,73-75,76,80,81
240 channels recorded for sequence lines 77-79
480 channels recorded for sequence lines 52-59
636 channels recorded for sequence lines 51,60-71,73-75,76,80,81
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