Seismic:WideAngle
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Onshore/offshore seismometer (OOS) data, off North Carolina and Virginia, acquired during R/V Marcus G. Langseth expedition MGL1408 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Part of the Eastern North America Community Seismic Experiment (ENAM), land seismographs recorded the airgun shots from the 2014 R/V Langseth expedition as it collected MCS data off North Carolina and Virginia while the R/V Endeavor collected OBS data. The data are in conventional SEG-Y format. The goal was to collect data to image geological structures beneath the seafloor to learn about the evolution of continental margins and their geohazards. Funding was provided by NSF grants OCE-1347498, OCE-1348454, OCE-1348124, OCE-1348342, OCE-1348228, and OCE-1347310.
vanAvendonk, Harm
Investigator
UTIG
Device Info
Seismic:
Platform
Marcus G. Langseth (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
Van Avendonk et al., 2014 ENAM: A community seismic experiment targeting rifting processes and post-rift evolution of the Mid Atlantic US margin, abstract ID T53B-4683 Conf. Proc. .
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: MGL1408
MGL1408_ACQ001 (Lines: Sequences 1,3,10,13,14,15)
Source Information
AirGun (BOLT:1500)
Volume (cu in): 6600
Pressure (psi): 2000
Depth (m): 9
Shot Interval (m): 225
Distance to Near Channel (m): 307.5
Distance to Antenna (m): 216
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): 8000
Cable Depth (m): 9
Near Channel Number: 636
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav3050 - Primary
WGS84
Acquisition System
Digital
Name: Sercel Syntrak 960
Sample Interval (msec): 2
Record Length (sec): 18
Details
Source Number was 36 airguns
MGL1408_ACQ002 (Lines: Sequences 2,4,5,6,11,12,16,17,18,23,24,25)
Source Information
AirGun (BOLT:1500)
Pressure (psi): 2000
Shot Interval (m): 50
Distance to Near Channel (m): 307.5
Distance to Antenna (m): 216
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): 8000
Near Channel Number: 636
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav3050 - Primary
WGS84
Acquisition System
Digital
Name: Sercel Syntrak 960
Sample Interval (msec): 2
Record Length (sec): 18
Details
Source Volume = 6600cu in for Sequences 2,4,16,17,18,23
Source Volume = 3300cu in for Sequences 5,6,11,12,24,25
Source Volume = 6600cu in for Sequences 28 and 29
Source Volume = 3300cu in for Sequence 30
Source Number was 18 airguns for 3300cu.in. and 36 airguns for 6600cu.in.
Streamer Depth = 6m and Source Depth = 6m for Sequences 5,6,11,12,24,25
Streamer Depth = 9m and Source Depth = 9m for Sequences 2,4,16,17,18,23
MGL1408_ACQ003 (Lines: Sequences 7,8,9,19,20,21,22,26,27)
Source Information
AirGun (BOLT:1500)
Volume (cu in): 3300
Pressure (psi): 2000
Distance to Near Channel (m): 307.5
Distance to Antenna (m): 216
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 480
Channels Recorded: 480
Group Spacing (m): 12.5
Cable Length (m): 6000
Cable Depth (m): 6
Near Channel Number: 480
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav3050 - Primary
WGS84
Acquisition System
Digital
Name: Sercel Syntrak 960
Sample Interval (msec): 1
Record Length (sec): 9
Details
Shot Interval = 37.5m for Sequence 9
Shot Interval = 25m for Sequences 7,8,19,20,21,22,26,27
Source Number was 18 airguns for 3300cu.in.
MGL1408_ACQ004 (Lines: Sequences 28-30)
Source Information
AirGun (BOLT:1500)
Pressure (psi): 2000
Distance to Near Channel (m): 307.5
Distance to Antenna (m): 216
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): 8000
Near Channel Number: 636
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav3050 - Primary
WGS84
Acquisition System
Digital
Name: Sercel Syntrak 960
Sample Interval (msec): 2
Record Length (sec): 18
Details
Shot Interval = 62.5m for Sequence 28
Shot Interval = 75m for Sequence 29
Shot Interval = 50m for Sequence 30
Source Depth = 9m and Streamer Depth = 9m for Sequences 28,29
Source Depth = 6m and Streamer Depth = 6m for Sequence 30
Source Volume = 6600cu.in. for Sequences 28 and 29
Source Volume = 3300cu in for Sequence 30
Source Number was 18 airguns for 3300cu.in. and 36 airguns for 6600cu.in.
org.marine-geo:MGL1408_ACQ001 (Lines: )
Source Information
AirGun
Receiver Information
NotApplicable
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
WGS84
Acquisition System
Digital
Name:
Details
Receiver Type: Hydrophone:Streamer
Source Type: SeismicSource_Gun_Air
Acquisition System Name: null
Acquisition System Type: null
Seismic Nav System: null
Survey Datum: WGS84
Source to Near Channel (m): 307.5
Antenna to Source (m): 216 (nav ref point to source)
Number of Channels Recorded: 636: lines mcs01, mcs01a, mcs01b, mcs02, mcs03, mcs31, mcs32, mcs41, mcs42, mcs04a, mcs0a4a, mcs04b, mcs62, mcs63, mcs71, obs01, obs01a, obs01b, obs03, obs04a, obs04b<br>480: lines mcs33, mcs34, mcs35, mcs52, mcs53, mcs57, mcs58, mcs63a, mcs64
Channel Length (m): 12.5
Cable Receiver Depth (m): 9: lines mcs01, mcs01a, mcs01b, mcs02, mcs03, mcs33, mcs34, mcs35, mcs04a, mcs0a4a, mcs04b, mcs52, mcs53, mcs57, mcs58, mcs63a, mcs64, obs01, obs01a, obs01b, obs03, obs04a, obs04b<br>6: lines mcs31, mcs32, mcs33, mcs34, mcs35, mcs41, mcs42, mcs52, mcs53, mcs57, mcs58, mcs62, mcs63, mcs63a, mcs64, mcs71
Source Volume (cubicInches): 6600: lines mcs01, mcs01a, mcs01b, mcs02, mcs03, mcs04a, mcs0a4a, mcs04b, obs01, obs01a, obs01b, obs03, obs04a, obs04b<br>3300: lines mcs31, mcs32, mcs33, mcs34, mcs35, mcs41, mcs42, mcs52, mcs53, mcs57, mcs58, mcs62, mcs63, mcs63a, mcs64, mcs71
Source Pressure (bars): null
Source Number: 20: lines mcs31, mcs32, mcs33, mcs34, mcs35, mcs41, mcs42, mcs52, mcs53, mcs57, mcs58, mcs62, mcs63, mcs63a, mcs64, mcs71<br>40: lines mcs01, mcs01a, mcs01b, mcs02, mcs03, mcs04a, mcs0a4a, mcs04b, obs01, obs01a, obs01b, obs03, obs04a, obs04b
Source Depth (m): 9: lines mcs01, mcs01a, mcs01b, mcs02, mcs03, mcs33, mcs34, mcs35, mcs04a, mcs0a4a, mcs04b, mcs52, mcs53, mcs57, mcs58, mcs63a, mcs64, obs01, obs01a, obs01b, obs03, obs04a, obs04b<br>6: lines mcs31, mcs32, mcs33, mcs34, mcs35, mcs41, mcs42, mcs52, mcs53, mcs57, mcs58, mcs62, mcs63, mcs63a, mcs64, mcs71
Shot Control: distance
Shot Interval (s or m): 25: lines mcs33, mcs34, mcs52, mcs53, mcs57, mcs58, mcs63a, mcs64<br>37.5: line mcs35<br>50: lines mcs01, mcs01a, mcs01b, mcs02, mcs03, mcs31, mcs32, mcs41, mcs42, mcs04b, mcs62, mcs63, mcs71<br>62.5: line mcs04a<br>75: line mcs0a4a<br>225: lines obs01, obs01a, obs01b, obs03, obs04a, obs04b
Compass Birds: yes
Tail Buoy Positioning: yes
Recording Delay: no
Data Set Documents
Line
mgl1408.mcs_line_log.pdf (244.0kB)
PDF
Towing Offset
mgl1408.towingOffsets.pdf (811.0kB)
PDF
mgl1408.oos_stationInformation.xls (451.0kB)
XLS
Seismic Acquisition
mgl1408.seismic_configuration.pdf (10.0kB)
PDF
Cruise
en537.cruiserpt.pdf (6.3MB)
PDF
Cruise
en554.cruiserpt.pdf (14.8MB)
PDF
Cruise
mgl1408.cruiserpt.pdf (51.0MB)
PDF
MGL1408 Documents
Daily Field
MGL1408_Daily_Field_Report.pdf (1.9MB)
PDF
MCS Lines
MGL1408_B15_MCS_Line_Log.pdf (244.0kB)
PDF
MCS Observer Watch
MGL1408_MCS_Observer_Watch_Log.pdf (685.0kB)
PDF
MCS Sequence Configuration
MCS Tow Offset Configuration
MGL1408_Towing_Offsets.pdf (811.0kB)
PDF
Navigation Watch
MGL1408_Navigation_Watch_Log.pdf (689.0kB)
PDF
OBS Velocity Model Description
Shuck_OBS_velocity_model_description.pdf (175.0kB)
PDF
Cruise
MGL1408_cruise_report_v2_with_appendices.pdf (51.0MB)
PDF
Data Collection Summary
MGL1408_DataReport_Ver1.1.pdf (12.5MB)
PDF
How To Cite This Data
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Onshore/offshore seismometer (OOS) data, off North Carolina and Virginia, acquired during R/V Marcus G. Langseth expedition MGL1408 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Locale
File Format
ASCII
Quality
1
vanAvendonk, Harm
UTIG
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