RC2604 Seismic Reflection/Refraction

Seismic:Navigation:ShotTime

Seismic Shot Point Navigation Data from the Atlantic Ocean east of the Lesser Antilles acquired during the R/V Robert D. Conrad expedition RC2604 (1985)

This data set was acquired with the LDEO Multi-Channel Seismic system during R/V Robert D. Conrad expedition RC2604 conducted in 1985 (Chief Scientist: Dr. Graham Westbrook; Investigators: Dr. Graham Westbrook and Dr. Peter Buhl). These data files are of ASCII format and include Seismic Shot Point Navigation data that provide the primary seismic navigation source for this cruise.

Westbrook, Graham

Investigator

University of Birmingham

Buhl, Peter

Investigator

LDEO

Device Info

Seismic:MCS

LDEO

Platform

Robert D. Conrad (Array)

LDEO

Data DOI

10.1594/IEDA/303747

Quality

A level of processing has been undertaken, ensuring quality control (e.g. ping edited sonar data, edited navigation data).

Report Incorrect Information

Data Files

Acquisition Information

Documents

Data Citation Information

ISO/XML Metadata

Related Acquisition Information

RC2604

Line Log

Seismic Acquisition Parameters

Download as Text: RC2604

RC2604_ACQ001 (Lines: All)

Source Information

AirGun (BOLT:1500C)

Source Number: 4

Volume (cu in): 2791

Pressure (psi): 1800

Distance to Near Channel (m): 300

Distance to Antenna (m): 48

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): 2400

Near Channel Number: 48

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

Transit satellites likely, GPS possible

Acquisition System

Digital

Name: DFSIV

Sample Interval (msec): 4

(Recording Delay Used)

Details

Radist Antenna to Source (Darwin)=47 meters

Source Depth Airguns: unknown

Source: Darwin also shot explosives for ESP lines 467, 478, maybe others.

Shot Interval for CDP lines: 20-25 seconds

Shot Interval or COP lines: 40 seconds

Shot Interval for Explosive ESP lines: ~7 minutes

Shot Interval for Airgun ESP lines: 1 minute

Record Length for CDP lines: 12 seconds

Record Length for COP lines: 20 seconds

Record Length for ESP lines: 40 seconds

Source Volume(Airguns): 2466 cu. in. (Darwin), 2791 cu. in. (Conrad)

Cable Depth: 30-50 feet

edu.utexas.ig:rc2604_acq001 (Lines: )

Source Information

AirGun

Receiver Information

Hydrophone:Streamer

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

GPS; Transit Satellite logged

WGS72

Acquisition System

Digital

Name: DFS IV

Details

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air

Acquisition System Name: DFS IV

Acquisition System Type: digital

Seismic Nav System: GPS; Transit Satellite logged

Survey Datum: WGS72

Source to Near Channel (m): 300

Antenna to Source (m): 48

Number of Channels Recorded: 48

Channel Length (m): 50

Cable Receiver Depth (m): 9.1-15.2

Source Volume (cubicInches): 2791

Source Pressure (bars): 124

Source Number: 4

Source Depth (m): unknown

Shot Control: time

Shot Interval (s or m): null

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no

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