Seismic Reflection/Refraction Data at the Academic Seismic Portal
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Robert D. Conrad
Processed
Raw
Acquisition Information
Processed Data Sets
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Locale
File Format
ASCII
Quality
2
Alsop, Joyce
ten Brink and Watts, 1985
ten Brink and Brocher, 1988
ten Brink and Brocher, 1987
ten Brink, 1986
Seismic:Navigation
Data DOI:
10.26022/IEDA/331294
Seismic navigation files for depth-migrated seismic profiles, 1982 Hawaiian Islands survey, cruise RC2308
Locale
File Format
ASCII
Quality
2
Cilli, Phillip
Dept of Earth Sciences, University of Oxford
Watts, Anthony
Dept of Earth Sciences, University of Oxford
Boston, Brian
Auburn University
Shillington, Donna
NAU
Locale
File Format
SEGY
Quality
2
Alsop, Joyce
ten Brink and Watts, 1985
ten Brink and Brocher, 1988
ten Brink and Brocher, 1987
ten Brink, 1986
Locale
File Format
PDF
Quality
2
Alsop, Joyce
ten Brink and Watts, 1985
ten Brink and Brocher, 1988
ten Brink and Brocher, 1987
ten Brink, 1986
Seismic:Reflection:MCS
Data DOI:
10.26022/IEDA/331293
Reprocessed depth-migrated seismic profiles (SEG-Y format), 1982 Hawaiian Islands survey, cruise RC2308
Locale
File Format
SEGY
Quality
2
Cilli, Phillip
Dept of Earth Sciences, University of Oxford
Watts, Anthony
Dept of Earth Sciences, University of Oxford
Boston, Brian
Auburn University
Shillington, Donna
NAU
Seismic:Reflection:MCS
Data DOI:
10.26022/IEDA/331295
Reprocessed depth-migrated seismic profile images (PNG format), 1982 Hawaiian Islands survey, cruise RC2308
Locale
File Format
PNG
Quality
2
Cilli, Phillip
Dept of Earth Sciences, University of Oxford
Watts, Anthony
Dept of Earth Sciences, University of Oxford
Boston, Brian
Auburn University
Shillington, Donna
NAU
Raw Data Sets
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Seismic:Reflection:MCS (Repository unknown)
Data on Hold Until:
Platform Info
Array:Robert D. Conrad
LDEO
Device Info
Seismic:
LDEO
Locale
File Format
NotProvided
Quality
0
Buhl, Peter
LDEO
Event Logs
Device Info
Seismic:
LDEO
Platform: Robert D. Conrad (Array)
Seismic:
Platform: Robert D. Conrad (Array)
Watts, Anthony
University of Oxford
Seismic Acquisition Parameters
RC2308_ACQ001 (Lines: All)
Source Information
AirGun (BOLT:1500C)
Source Number: 4
Volume (cu in): 1864
Pressure (psi): 2000
Distance to Near Channel (m): 300
Distance to Antenna (m): 40
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 48
Channels Recorded: 48
Group Spacing (m): 50
Cable Length (m): 3500
Near Channel Number: 48
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
US Navy Transit Satellites
WGS72
Acquisition System
Digital
Name: DFSIV
Sample Interval (msec): 4
(Recording Delay Used)
Details
Cable Depth: 45-50 feet
Group Spacing: 50,100, 50,100,... meters For this cruise the streamer had the following spacing: 2 50m actives followed by a 50m dead section, so 48 channels over 3500m.
Examples - trace, offset(m):
48 300
47 350
46 450
45 500
44 600
43 650
42 750
. .
. .
. .
Antenna to Source (Kana Keoki)=74 meters
Source Volume (Kana Keoki)=1920 cu. in.
Source Pressure (Kana Keoki)=2000 psi
Source Depth (Kana Keoki)=UNKNOWN
Shot Control (Kana Keoki)=Time: Every minute on the half minute for Constant Offset COP lines. For these lines the Kana Keoki was in front of the Conrad. The distance between the two ships was measured by Miniranger and Raydist. Each COP line was shot twice using different ship separations: 3.6km and 16km. Airgun and Explosive ESPs (Expanding Spread Profiles) were also shot during this cruise.
Ship Distances for COP lines:
Line, COP, Distance (km)
301 copA 3.6
303 cdp/esp/cop 3.6
304 copB 16.0
305 cdp/esp/cop 3.6
306 copC 16.0
307 cdp/esp/cop 3.6
308 copD 16.0
310 cdp/esp/cop 3.6
311 copE 18.0
313 copE 3.6
314 copF 3.6
316 cdp/esp/cop 3.6
317 copG 16.0
319 cdp/esp/cop 3.6
320 copH 16.0
322 cdp/esp/cop 3.6
323 copI 16.0
325 cdp/esp/cop 3.6
326 copJ 3.6
327 cdp/esp/cop 3.6
328 copK 3.6
CDP lines (Conrad only)
329
330
331
332
edu.utexas.ig:rc2308_acq001 (Lines: All)
Source Information
AirGun
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 48
Channels Recorded: 48
Cable Length (m): 3500
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
US Navy Transit Satellite
WGS72
Acquisition System
Digital
Name: DFS IV
Sample Interval (msec): 4
(Recording Delay Used)
Details
Source Type: mainly AirGun, Explosives used for ESPs
Source to Near Channel (m): 300
Antenna to Source (m): 40m for Conrad; 74m for Kana Keoki
Number of Channels Recorded: 48
Channel Length: For this cruise the streamer had the following spacing: 2 50m actives followed by a 50m dead section; so 48 channels over 3500m.
Cable Depth: 13.7-15.2m
Source Volume (cubic inches): 1864 for Conrad; 1920 for Kana Keoki
Source Pressure (bars): 138
Source Number: 4 for Conrad, 3 for Kana Keoki
Source Depth (m): unknown for both Conrad and Kana Keoki
Shot Control: Time
Shot Interval: For Conrad, every minute on the half minute for Constant Offset COP lines. At 20 second intervals for the single ship CDP lines 329-332. For Kana Keoki, every minute on the half minute for Constant Offset COP lines. For these lines the Kana Keoki was in front of the Conrad. The distance between the two ships was measured by Miniranger and Raydist. Each COP line was shot twice using two ship separations: 3.6 and 16 km. Airgun and Explosive ESPs (Expanding Spread Profiles) were also shot during this cruise.
Acquisition Record Length: 12 seconds for CDP lines, 20 seconds for COP lines, 40 seconds for ESP lines
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