Seismic Reflection/Refraction Data at the Academic Seismic Portal
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Ocean bottom seismometer (OBS) data in the Gulf of Alaska acquired during R/V Marcus G. Langseth expedition MGL11109 (2011)
Platform Info
Array:Marcus G. Langseth
LDEO
Device Info
Seismic:
Locale
File Format
PDF
Quality
2
Christeson, Gail
Seismic:WideAngle:OBS
Data DOI:
10.1594/IEDA/500040
Ocean bottom seismometer (OBS) data in the Gulf of Alaska acquired during R/V Marcus G. Langseth expedition MGL11109 (2011)
Platform Info
Array:Marcus G. Langseth
LDEO
Device Info
Seismic:
Locale
File Format
SEGY
Quality
2
Christeson, Gail
Raw Data Sets
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Seismic:WideAngle, Seismic:WideAngle:OBSData at IRIS
Platform Info
Array:Marcus G. Langseth
LDEO
Device Info
Seismic:
WHOI:D2
Locale
Alaska:GulfOfAlaska
Gulf
File Format
NotProvided
Quality
0
Details
Seismic refraction data obtained from OBSs that were deployed on cruise Norseman_1101 with shots fired from Langseth cruise MGL1109.
Tate, George
Barth, Ginger
USGS
Childs, Jonathan
USGS
Event Logs
Device Info
Related DevicesSeismic:
LDEO
Platform: Marcus G. Langseth (Array)
Seismic:
WHOI:D2
Platform: Marcus G. Langseth (Array)
Seismic:
Platform: Marcus G. Langseth (Array)
Barth, Ginger
USGS
Device Info
Seismic:
Platform: Marcus G. Langseth (Array)
Seismic:
Platform: Marcus G. Langseth (Array)
Barth, Ginger
USGS
Device Info
Seismic:
WHOI:D2
Platform: Marcus G. Langseth (Array)
Seismic:
Platform: Marcus G. Langseth (Array)
Tate, George
USGS
Device Info
Probe:
Sippican:T-5
Platform: Marcus G. Langseth
Childs, Jonathan
USGS
Device Info
Probe:
Sippican:T-7
Platform: Marcus G. Langseth
Childs, Jonathan
USGS
Device Info
Probe:
Sippican:XCTD-1
Platform: Marcus G. Langseth
Childs, Jonathan
USGS
Device Info
Probe:
Sippican:XCTD-2
Platform: Marcus G. Langseth
Childs, Jonathan
USGS
Seismic Acquisition Parameters
MGL1109_ACQ001 (Lines: MCS lines 1-14)
Source Information
AirGun (BOLT:1500LL)
Source Number: 36
Volume (cu in): 6600
Pressure (psi): 6600
Depth (m): 9
Distance to Near Channel (m): 176
Distance to Antenna (m): 399.1
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 3050 primary
WGS84
Acquisition System
Digital
Name: Syntron Syntrak 960
Sample Interval (msec): 2
Record Length (sec): 16
Details
Line 5 (MCS04A) was shot by Time at 30 second intervals, lines 1-4 and 5-15 were shot by Distance at 50m spacing
Airguns Bolt 1500LL and 1900LL were used.
MGL1109_ACQ002 (Lines: Lines 15 and 16)
Source Information
AirGun (BOLT:1500LL)
Source Number: 36
Volume (cu in): 6600
Pressure (psi): 6600
Depth (m): 9
Shot Interval (m): 150
Distance to Near Channel (m): 176
Distance to Antenna (m): 399.1
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Group Spacing (m): 12.5
Cable Depth (m): 9
Near Channel Number: 636
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav 3050 primary
WGS84
Acquisition System
Digital
Name: Syntron Syntrak 960
Sample Interval (msec): 2
Record Length (sec): 16
Details
Lines 15 and 16 were also recorded by OBS
At Line 16 shotpoint 2009, the streamer was shortened to 5850m (468 channels)
Airguns Bolt 1500LL and 1900LL were used.
MGL1109_ACQ003 (Lines: Lines 17-19)
Source Information
AirGun (BOLT:1500LL)
Source Number: 36
Volume (cu in): 6600
Pressure (psi): 6600
Depth (m): 9
Shot Interval (m): 50
Distance to Near Channel (m): 176
Distance to Antenna (m): 399.1
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 468
Channels Recorded: 468
Group Spacing (m): 12.5
Cable Length (m): 5850
Cable Depth (m): 9
Near Channel Number: 468
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav 3050 primary
WGS84
Acquisition System
Digital
Name: Syntron Syntrak 960
Sample Interval (msec): 2
Record Length (sec): 16
Details
Airguns Bolt 1500LL and 1900LL were used.
org.marine-geo:MGL1109_ACQ001 (Lines: )
Source Information
AirGun
Receiver Information
Hydrophone:Streamer
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav 3050 primary
WGS84
Acquisition System
Digital
Name: Syntron Syntrak 960
Details
Receiver Type: Hydrophone_Streamer
Source Type: SeismicSource_Gun_Air
Acquisition System Name: Syntron Syntrak 960
Acquisition System Type: digital
Seismic Nav System: C-Nav 3050 primary
Survey Datum: WGS84
Source to Near Channel (m): 176
Antenna to Source (m): 399.1
Number of Channels Recorded: 636
Channel Length (m): 12.5
Cable Receiver Depth (m): null
Source Volume (cubicInches): 6600
Source Pressure (bars): null
Source Number: 36
Source Depth (m): 9
Shot Control: distance: lines 1-4, 5-19; time: line MCS04A
Shot Interval (s or m): 50m: lines 1-4, 5-14, 17-19; 150m: lines 15-16; 30s: line MCS04A
Compass Birds: yes
Tail Buoy Positioning: yes
Recording Delay: no
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