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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Backscatter:Acoustic
Data DOI:
10.1594/IEDA/321024
Kongsberg EM122 high-resolution 5m backscatter grid, offshore Costa Rica, Central America, MARGINS CRISP 3-D Langseth cruise MGL1106 (year 2011, investigators Jared Kluesner, Nathan Bangs, Cesar Ranero, Kirk McIntosh, Eli Silver)
Platform Info
Marcus G. Langseth
LDEO
Device Info
Sonar: Multibeam
Kongsberg:EM122
Locale
CentralAmerica
FocusSite:MARGINS
File Format
NetCDF:Grid
Quality
2
Details
High-resolution 5m backscatter grid derived from Kongsberg EM122 multibeam data using novel range-angle techniques
Kluesner, Jared
UCSC
Bangs, Nathan
UTIG
Ranero, Cesar
CSIC:Institut de Ciences del Mar
McIntosh, Kirk
UTIG
Silver, Eli
UCSC
Bathymetry
Data DOI:
10.1594/IEDA/321022
Kongsberg EM122 high-resolution 10m bathymetry grid, offshore Costa Rica, Central America, MARGINS CRISP 3-D Langseth cruise MGL1106 (year 2011, investigators Jared Kluesner, Nathan Bangs, Cesar Ranero, Kirk McIntosh, Eli Silver)
Platform Info
Marcus G. Langseth
LDEO
Device Info
Sonar: Multibeam
Kongsberg:EM122
Locale
CentralAmerica
FocusSite:MARGINS
File Format
NetCDF:Grid
Quality
2
Details
High-resolution 10m bathymetry grid derived from Kongsberg EM122 multibeam data using novel range-angle techniques.
Kluesner, Jared
UCSC
Bangs, Nathan
UTIG
Ranero, Cesar
CSIC:Institut de Ciences del Mar
McIntosh, Kirk
UTIG
Silver, Eli
UCSC
Raw Data Sets
Sort by:
Bathymetry:Swath
Data at NOAA:NCEI
Platform Info
Marcus G. Langseth
LDEO
Device Info
Sonar: Multibeam
Kongsberg:EM122
Locale
File Format
MBSystem
Quality
0
Bangs, Nathan
UTIG
Event Logs
Device Info
Seismic: MCS
LDEO
Platform: Marcus G. Langseth (Array)
Bangs, Nathan
UTIG
Device Info
Probe: Expendable: XBT
Sippican:T-5
Platform: Marcus G. Langseth
Bangs, Nathan
UTIG
Device Info
Probe: Expendable: XBT
Sippican:T-7
Platform: Marcus G. Langseth
Bangs, Nathan
UTIG
Seismic Acquisition Parameters
MGL1106_ACQ001 (Lines: All lines (sequence 1 - 68))
Source Information
AirGun (BOLT:1500LL)
Source Number: 36
Volume (cu in): 3300
Pressure (psi): 2000
Depth (m): 7
Shot Interval (m): 25
Number of Arrays: 2
Source Array Separation (m): 75
Receiver Information
Hydrophone:Streamer
Number of Cables: 4
Channels Per Cable: 468
Channels Recorded: 1872
Group Spacing (m): 12.5
Cable Spacing (m): 150
Cable Length (m): 5850
Cable Depth (m): 8
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
Details
Record Length for lines sequence 1-10 was 9 seconds, the rest of the lines were recorded for 8 seconds
Near Channel Number for each streamer is 468, 936, 1404, 1872
Source to Near Channel distance is given as an approximation, use P1/P2 files for greater accuracy
Airguns Bolt 1500LL and 1900LL were used.
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