Seismic:Reflection:MCS
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Multi-Channel Seismic Shot Data from the Chukchi Sea, Arctic Ocean, acquired during the R/V Marcus G. Langseth expedition MGL1112 (2011)
This data set was acquired with the LDEO Multi-Channel Seismic system during R/V Marcus G. Langseth expedition MGL1112 conducted in 2011 (Chief Scientist: Dr. Bernard Coakley). These data files are of SEGD format and include Multi-Channel Reflection Seismic shot data that have not been processed. Data were acquired as part of the project: Plate Boundaries around the Chukchi Borderland, and funding was provided by NSF grant: ARC09-09568. These data are cited by Dove et al., 2013.
Coakley, Bernard
Investigator
University of Alaska-Fairbanks
Device Info
Seismic:
LDEO
Platform
Marcus G. Langseth (Array)
LDEO
Awards
Data DOI
Quality
0
Data have not been processed or modified since acquisition (e.g. Realtime navigation or sonar data, raw images etc.).
Data Files
References
Acquisition Information
Documents
Data Citation Information
Related Data Sets
ISO/XML Metadata
References
Dove et al., 2013 Widespread, multi-source glacial erosion on the Chukchi margin, Arctic Ocean Quat. Sci. Rev. . doi: 10.1016/j.quascirev.2013.07.016
Lehmann and Jokat, 2022 Seismic constraints for ice sheets along the northern margin of Beringia Global and Planetary Change . doi: 10.1016/j.gloplacha.2022.103885
Lehmann et al., 2022 Glacial sediments on the outer Chukchi Shelf and Chukchi Borderland in seismic reflection data Mar Geophys Res 43. doi: 10.1007/s11001-022-09497-7
Zhang et al., 2022 Investigating Eddies From Coincident Seismic and Hydrographic Measurements in the Chukchi Borderlands, the Western Arctic Ocean JGR Oceans 127. doi: 10.1029/2022JC018453
Yang et al., 2022 A Mesoscale Eddy With Submesoscale Spiral Bands Observed From Seismic Reflection Sections in the Northwind Basin, Arctic Ocean JGR Oceans 127. doi: 10.1029/2021JC017984
Yang et al., 2023 Enhanced Mixing at the Edges of Mesoscale Eddies Observed From High-Resolution Seismic Data in the Western Arctic Ocean JGR Oceans 128. doi: 10.1029/2023JC019964
Lehmann, 2023 Unraveling the Chukchi Shelf sediments: insights into past ice sheet extent and gas migration Thesis . doi: 10.26092/elib/2756
Lehmann et al., 2025 Seismic evidence for fluid migration on the outer Chukchi Shelf, Arctic Ocean Geo-Mar Lett 45. doi: 10.1007/s00367-024-00789-y
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: MGL1112
MGL1112_ACQ001 (Lines: Sequence 1,2,6,7,8,14-18,22-27,36-44,47,49,53,55-59,67-76)
Source Information
AirGun (BOLT:1500LL)
Source Number: 10
Volume (cu in): 1830
Pressure (psi): 2000
Distance to Near Channel (m): 226.7
Distance to Antenna (m): 83.3
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: Sercel Syntrak 960
Sample Interval (msec): 2
Details
Source Depth is 9m for lines sequence 1-5
Source Depth is 6m for all other lines
Record Length is 12s for lines sequence 1-5 and 57
Record Length is 10s for all other lines
Shot Control is Distance of 37.5m for lines sequence 1,2,6,7,8,14-18,22,23,25,27,36-40,42,44,47,49,53,55-58,67,68,70-76
Shot Control is Time of 12.8s for lines 24 and 26
Shot Control is Time of 12.0s for lines 41,53,59 and 69
MGL1112_ACQ002 (Lines: Sequence 3-5,9-13,19-21,28-35,45,46,48,50-52,54,60-66)
Source Information
AirGun (BOLT:1500LL)
Source Number: 10
Volume (cu in): 1830
Pressure (psi): 2000
Distance to Near Channel (m): 206.7
Distance to Antenna (m): 103.3
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: Sercel Syntrak 960
Sample Interval (msec): 2
Details
Source Depth is 9m for lines sequence 1-5
Source Depth is 6m for all other lines
Record Length is 12s for lines sequence 1-5 and 57
Record Length is 10s for all other lines
Shot Control is Distance of 37.5m for lines sequence 3,4,5,9-13,19,28,29,32,34,35,45,46,48,50,51,52,54,62,64,66
Shot Control is Time of 12.8s for lines 20 and 21
Shot Control is Time of 12.0s for lines 30,31,33,60,61,63,65
org.marine-geo:MGL1112_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: Sercel Syntrak 960
Details
Receiver Type: Hydrophone_Streamer
Source Type: SeismicSource_Gun_Air
Acquisition System Name: Sercel Syntrak 960
Acquisition System Type: digital
Seismic Nav System: C-Nav 3050 primary
Survey Datum: WGS84
Source to Near Channel (m): 226.7: lines 1,2,6,7,8,14-18,22-27,36-44,47,49,53,55-59,67-76; 206.7: lines 3-5,9-13,19-21,28-35,45,46,48,50-52,54,60-66
Antenna to Source (m): 83.3: lines 1,2,6,7,8,14-18,22-27,36-44,47,49,53,55-59,67-76; 103.3: lines 3-5,9-13,19-21,28-35,45,46,48,50-52,54,60-66
Number of Channels Recorded: 468
Channel Length (m): 12.5
Cable Receiver Depth (m): 9
Source Volume (cubicInches): 1830
Source Pressure (bars): 138
Source Number: 1
Source Depth (m): 9: lines sequence 1-5; 6: all other lines
Shot Control: time
Shot Interval (s or m): 13
Compass Birds: yes
Tail Buoy Positioning: yes
Recording Delay: no
MGL1112 Documents
Daily Field
MGL1112_Daily_Field_Report.pdf (356.0kB)
PDF
MCS Lines
MGL1112_B15_MCS_line_log.pdf (519.0kB)
PDF
MCS Observer Watch
MGL1112_MCS_Observer_Watch.pdf (1.6MB)
PDF
MCS Sequence Configuration
MCS Single Streamer Configuration
MGL1112_Single_Streamer_Arctic.pdf (348.0kB)
PDF
Navigation Watch
MGL1112_Navigation_Watch_Log.pdf (476.0kB)
PDF
Cruise
mgl1112.Summary_Report.pdf (26.7MB)
PDF
Data Collection Summary
MGL1112_DataReport_v1.4.pdf (2.0MB)
PDF
MCS Tow Offset Configuration
MGL1112_Towing_Offsets.pdf (704.0kB)
PDF
How To Cite This Data
Related Data Sets
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Seismic:Navigation
Data DOI:
10.1594/IEDA/318261
Raw Seismic Navigation Data (P1 format) from the Chukchi Sea, Arctic Ocean, during the R/V Marcus G. Langseth expedition MGL1112 (2011)
Locale
File Format
P1
Quality
0
Details
These are raw, unprocessed P190 navigation files. Processed P190 navigation files exist (quality=1) and should be used for processing MCS data instead of these files.
Coakley, Bernard
University of Alaska-Fairbanks
Seismic:Navigation
Data DOI:
10.1594/IEDA/318273
Seismic Navigation Data (P2 format) from the Chukchi Sea, Arctic Ocean, acquired during the R/V Marcus G. Langseth expedition MGL1112 (2011)
Locale
File Format
P2
Quality
0
Coakley, Bernard
University of Alaska-Fairbanks
Seismic:Navigation
Data DOI:
10.1594/IEDA/321144
Processed Seismic Navigation Data from the Chukchi Sea, Arctic Ocean, acquired during the R/V Marcus G. Langseth expedition MGL1112 (2011)
Locale
File Format
P1
Quality
1
Details
These processed (quality=1) P190 navigation files should be used for processing the MCS data.
Coakley, Bernard
University of Alaska-Fairbanks
Multi-Channel Seismic Data from the Chukchi Sea acquired during the Marcus G. Langseth expedition MGL1112 (2011)
Locale
File Format
ASCII
Quality
0
Details
Spectra shot logs
Coakley, Bernard
University of Alaska-Fairbanks
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