Marine Geoscience Data System

Processed Data Sets

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Seismic:Reflection:MCS

Data DOI: 10.26022/IEDA/330881

NZ3D seismic reflection data volume – Preliminary post-stack time migration (PSTM)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

Hikurangi

SubductionZone

File Format

SEGY

Quality

2

Bangs, Nathan

UTIG

Han, Shuoshuo

UTIG

Data Set References

Seismic:Reflection:MCS

Data DOI: 10.26022/IEDA/331022

NZ3D seismic reflection data volume - Prestack Depth Migration (PSDM)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

Hikurangi

SubductionZone

File Format

SEGY

Quality

2

Bangs, Nathan

UTIG

Han, Shuoshuo

UTIG

Bell, Rebecca

Imperial College London

Barker, Daniel

GNS

Aria, Ryuta

JAMSTEC

Kodaira, Shuichi

JAMSTEC

Edwards, Joel

Zanskar Geothermal

Tobin, Harold

UW

Moore, Gregory

UH:HIGP

Henrys, Stuart

GNS

Basset, Daniel

GNS

Data Set References

Seismic:Velocity:Model

Data DOI: 10.26022/IEDA/331023

NZ3D velocity data volume – 3D TTI Full Waveform Inversion (3DTTIFWI)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

Hikurangi

SubductionZone

File Format

SEGY

Quality

2

Bangs, Nathan

UTIG

Han, Shuoshuo

UTIG

Bell, Rebecca

Imperial College London

Barker, Daniel

GNS

Aria, Ryuta

JAMSTEC

Kodaira, Shuichi

JAMSTEC

Edwards, Joel

Zanskar Geothermal

Tobin, Harold

UW

Moore, Gregory

UH:HIGP

Henrys, Stuart

GNS

Basset, Daniel

GNS

Data Set References

Raw Data Sets

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Seismic:Navigation

Data DOI: 10.1594/IEDA/324545

Raw Seismic Navigation Data (P1 format) from the Hikurangi subduction margin collected during R/V Marcus G. Langseth expedition MGL1801 (2018)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

Hikurangi

SubductionZone

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.

Bangs, Nathan

UTIG

Han, Shuoshuo

UTIG

Tobin, Harold

University of Wisconsin

Moore, Gregory

UH:SOEST

Silver, Eli

UCSC

Barker, Daniel

GNS

Henrys, Stuart

GNS

Bell, Rebecca

Imperial College London

Seismic:Navigation

Data DOI: 10.1594/IEDA/324546

Processed Seismic Navigation Data (P1 format) from the Hikurangi subduction margin collected during R/V Marcus G. Langseth expedition MGL1801 (2018)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

Hikurangi

SubductionZone

File Format

P1

Quality

1

Details

These processed (quality=1) P190 navigation files should be used for processing the MCS data.

Bangs, Nathan

UTIG

Han, Shuoshuo

UTIG

Tobin, Harold

University of Wisconsin

Moore, Gregory

UH:SOEST

Silver, Eli

UCSC

Barker, Daniel

GNS

Henrys, Stuart

GNS

Bell, Rebecca

Imperial College London

Seismic:Navigation

Data DOI: 10.1594/IEDA/324547

Raw Seismic Navigation Data (P2 format) from the Hikurangi subduction margin collected during R/V Marcus G. Langseth expedition MGL1801 (2018)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

Hikurangi

SubductionZone

File Format

P2

Quality

0

Bangs, Nathan

UTIG

Han, Shuoshuo

UTIG

Tobin, Harold

University of Wisconsin

Moore, Gregory

UH:SOEST

Silver, Eli

UCSC

Barker, Daniel

GNS

Henrys, Stuart

GNS

Bell, Rebecca

Imperial College London

Seismic:Reflection:MCS

Data DOI: 10.1594/IEDA/324554

Multi-Channel Seismic Shot Data from the Hikurangi subduction margin collected during R/V Marcus G. Langseth expedition MGL1801 (2018)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

Hikurangi

SubductionZone

File Format

SEGD

Quality

0

Bangs, Nathan

UTIG

Han, Shuoshuo

UTIG

Tobin, Harold

University of Wisconsin

Moore, Gregory

UH:SOEST

Silver, Eli

UCSC

Barker, Daniel

GNS

Henrys, Stuart

GNS

Bell, Rebecca

Imperial College London

Data Set References

Event Logs

Line (MGL1801)

Device Info

Seismic:MCS

LDEO

Platform: Marcus G. Langseth (Array)

Bangs, Nathan

UTIG

Seismic Acquisition Parameters

Download As Text

MGL1801_ACQ001 (Lines: Sequences 1-62.)

Source Information

AirGun (BOLT:1500LL)

Source Number: 18

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): 6000

Cable Depth (m): 8

Near Channel Number: 1

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

C-Nav 3050 primary

WGS84

Acquisition System

Digital

Name: Sercel Seal 408

Sample Interval (msec): 2

Record Length (sec): 9.5

Details

Source was Bolt 1500LL and 1900LL.

For sequence 001, the navigation reference point (NRP) to center of source (COS) distance was 265m and the COS to center of near group (CNG) distance was 200m.

For sequences 002-004, the NRP-COS distance was 290m and COS-CNG distance was 175m.

For sequences 005-009, the NRP-COS distance was 290m and COS-CNG distance was 172m.

For sequences 010-011, the NRP-COS distance was 285m and COS-CNG distance was 170m.

For sequences 012-061, the NRP-COS distance was 280m and COS-CNG distance was 175m.

For sequence 062, there were streamer issues and no good data was recorded.