Seismic:Navigation
Processed Seismic Navigation Data (version 1) from the Aleutian Islands Margin, Gulf Of Alaska, acquired during the R/V Marcus G. Langseth expedition MGL1110 (2011)
This data set was acquired with the LDEO Multi-Channel Seismic system during R/V Marcus G. Langseth expedition MGL1110 conducted in 2011 (Chief Scientist: Dr. Donna Shillington). These data files are of UKOOA P1/90 format and include Seismic Navigation data that were processed after data collection. Data were acquired as part of the projects: Alaska/Aleutian megathrust and Megathrust seismic hazards by reflection mapping, and funding was provided by NSF grant: OCE09-26614.
Shillington, Donna
Investigator
LDEO
Nedimovic, Mladen
Investigator
Dalhousie
Webb, Spahr
Investigator
LDEO
Device Info
Seismic: MCS
LDEO
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).
License
Data Files
References
Acquisition Information
Documents
Data Citation Information
Related Data Sets
ISO/XML Metadata
References
Abadi et al., 2017 Estimating the location of baleen whale calls using dual streamers to support mitigation procedures in seismic reflection surveys PLOS One 12. doi: 10.1371/journal.pone.0171115
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: MGL1110
MGL1110_ACQ001 (Lines: Sequence numbers 8-10)
Source Information
AirGun (BOLT:1500LL)
Source Number: 36
Volume (cu in): 6600
Pressure (psi): 2000
Depth (m): 12
Shot Interval (m): 62.5
Distance to Near Channel (m): 325.84
Distance to Antenna (m): 222.7
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 2
Channels Per Cable: 636
Channels Recorded: 1272
Group Spacing (m): 12.5
Cable Spacing (m): 450
Cable Length (m): 7950
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
CNAV 3050 - primary
WGS84
Acquisition System
Digital
Name: Syntron Syntrak 960
Sample Interval (msec): 2
Record Length (sec): 22.528
Details
Near channel numbers were 636 and 1272
Streamer 1 was towed at a depth of 9m, Streamer 2 at 12m
MGL1110_ACQ002 (Lines: Sequence numbers 11-26)
Source Information
AirGun (BOLT:1500LL)
Source Number: 36
Volume (cu in): 6600
Pressure (psi): 2000
Depth (m): 12
Shot Interval (m): 62.5
Distance to Antenna (m): 222.7
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 2
Channels Per Cable: 636
Channels Recorded: 1272
Group Spacing (m): 12.5
Cable Spacing (m): 225
Cable Length (m): 7950
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
CNAV 3050 - primary
WGS84
Acquisition System
Digital
Name: Syntron Syntrak 960
Sample Interval (msec): 2
Details
Streamer 1 was towed at a depth of 9m, Streamer 2 at 12m
Streamer 1 was towed from the stern, distance from center of source to near group was 235.68m
Streamer 2 was towed from the paravane, distance from center of source to near group was 325.84m
Near channel numbers were Streamer 1: 636 and Streamer 2 : 1272
Lines 11-26 were recorded for 22.528s except for part of Line 24 which was recorded only for 18.430s
MGL1110_ACQ003 (Lines: Sequence numbers 27-33)
Source Information
AirGun (BOLT:1500LL)
Source Number: 36
Volume (cu in): 6600
Pressure (psi): 2000
Depth (m): 12
Shot Interval (m): 62.5
Distance to Near Channel (m): 325.84
Distance to Antenna (m): 222.7
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): 12
Near Channel Number: 636
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
CNAV 3050 - primary
WGS84
Acquisition System
Digital
Name: Syntron Syntrak 960
Sample Interval (msec): 2
Details
Data was recorded by a single streamer, Streamer 2, towed from the paravane
Distance from center of source to near group was 325.84m
Lines 27-33 were recorded for 22.528s except for part of Line 29 which was recorded only for 18.430s
org.marine-geo:MGL1110_ACQ001 (Lines: )
Source Information
AirGun
Receiver Information
Hydrophone:Streamer
Used Active Tail Buoy: false
Used Compass Birds: false
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): 235.68
Antenna to Source (m): 222.7
Number of Channels Recorded: null
Channel Length (m): null
Cable Receiver Depth (m): null
Source Volume (cubicInches): 6600
Source Pressure (bars): null
Source Number: 10
Source Depth (m): null
Shot Control: null
Shot Interval (s or m): null
Compass Birds: no
Tail Buoy Positioning: no
Recording Delay: no
MGL1110 Documents
Cruise Blog
Go to site
HTML
Daily Field
MGL1110_Daily_Field_Report.pdf (340.0kB)
PDF
MCS Lines
MGL1110_B15_MCS_line_log.pdf (62.0kB)
PDF
MCS Observer Watch
MGL1110_MCS_Observer_Watch.pdf (781.0kB)
PDF
Navigation Watch
MGL1110_Navigation_Watch_Log.pdf (211.0kB)
PDF
Cruise (no appendices)
cruise_report_mgl1110.pdf (57.9MB)
PDF
Cruise (with appendices)
mgl1110.cruiserpt.pdf (205.8MB)
PDF
USGS: Processing Steps and Navigation Notes
Data Collection Summary
MGL1110_DataReport_v1.3.pdf (1.3MB)
PDF
MCS Tow Offset Configuration
MGL1110_Towing_Offsets.pdf (231.0kB)
PDF
How To Cite This Data
Related Data Sets
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Seismic:Navigation
Data DOI:
10.1594/IEDA/317817
Seismic Navigation Data (P2 format) from the Aleutian Islands Margin, Gulf Of Alaska, acquired during the R/V Marcus G. Langseth expedition MGL1110 (2011)
Locale
Alaska:Aleutians
FocusSite:GeoPRISMS
File Format
P2
Quality
0
Seismic:Navigation
Data DOI:
10.1594/IEDA/317812
Raw Seismic Navigation Data (P1 format) from the Aleutian Islands Margin, Gulf Of Alaska, acquired during the R/V Marcus G. Langseth expedition MGL1110 (2011)
Locale
Alaska:Aleutians
FocusSite:GeoPRISMS
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.
Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/317810
Multi-Channel Seismic Shot Data from the Aleutian Islands Margin, Gulf Of Alaska, acquired during the R/V Marcus G. Langseth expedition MGL1110 (2011)
Locale
Alaska:Aleutians
FocusSite:GeoPRISMS
File Format
SEGD
Quality
0
Shillington, Donna
LDEO
Nedimovic, Mladen
Dalhousie
Webb, Spahr
LDEO
Seismic:Reflection:MCS
Data DOI:
10.26022/IEDA/329922
Processed depth-migrated seismic reflection data across the Aleutian arc from Langseth ALEUT cruise MGL1110 (2011)
Locale
Alaska:Aleutians
FocusSite:GeoPRISMS
File Format
SEGY
Quality
2
von Huene, Roland
USGS
Miller, John
USGS
Krabbenhoeft, Anne
GEOMAR
Seismic:Reflection:MCS
Data DOI:
10.26022/IEDA/329923
Processed depth-migrated seismic reflection image profiles across the Aleutian arc from Langseth ALEUT cruise MGL1110 (2011)
Locale
Alaska:Aleutians
FocusSite:GeoPRISMS
File Format
JPEG
Quality
2
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