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! Converted to time format with year at start.
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DATA COLLECTION OVERVIEW (use NGDC GEODAS CD to retrieve data)
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MCG Data Collection ID --- C173NA
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Institution Data Collection ID --- CH115L01
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NGDC ID --- 02010061
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Funding --- NSF
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Project, Cruise & Leg --- CRUISE 115, LEG1
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Study region --- +41.00000, +8.00000, -71.00000, -17.00000
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Chief Scientist(s) --- DR.ELIZABETH BUNCE
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Name of vessel --- CHAIN (surface ship)
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Date field data collection started --- 11/20/73 WOODS HOLE U.S.A.
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Date field data collection ended --- 12/10/73 DAKAR,SENEGAL
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Parameters surveyed ---
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Bathymetry: surveyed, contained in data file
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Magnetics: surveyed, contained in data file
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Gravity: surveyed, contained in data file
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High-resolution seismics: (unspecified)
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Deep penetration seismics: (unspecified)
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Format --- (I1,A8,F5.2,4I2,F5.3,F8.5,F9.5,I1,F6.4,F6.1,I2,i1,3F6.1,I1,F5.1,F6.0,F7.1,F6.1,F5.1,A8,4I1)
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Date of data input to NGDC --- 05/24/82
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Contributing institution --- WOODS HOLE OCEANOGRAPHIC INSTITUTION
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Country --- U.S.A.
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Navigation instrumentation --- SATELLITE RECEIVER, DR
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Position determination method --- SAT.AND DR MERGED WITH SHIP VELOCITY
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Bathymetry instrumentation --- PRIM-3.5,SEC-12,WIDE BEAM 1 SEC SWEEP
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Additional forms of bathymetric data --- ANALOG RECORDS, PUNCHED TAPE
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General rate of bathymetry in file --- 5.0 minutes
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General collection rate of bathymetry --- ONE/SECOND
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Assumed sound velocity --- 1463.0 m/sec
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Bathymetric datum code --- No correction applied (sea level)
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Bathmetry interpolation scheme --- 5-MINUTES AND BREAK SLOPE
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Magnetics instrumentation --- VARIAN PROTON-PRECESSION MAGNATOMETER
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Additional forms of magnetics data --- ANALOG RECORDS, PUNCHED TAPE
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General rate of magnetics in file --- 5.0 minutes
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General collection rate of magnetics --- 60 seconds
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Magnetic sensor tow distance --- 250 meters
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Magnetic sensor depth --- (unspecified)
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Two sensor horizontal separation --- (unspecified)
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Residual magnetics reference field --- IGRF-65
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Method of applying residual field --- LINER INTERPOLATION WHITIN DEGREE SQUARE
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Gravity instrumentation --- ARPA VIBRATING STRING ACCELEROMETER
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Additional forms of gravity data --- ANALOG RECORDS , PUNCHED TAPES
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General rate of gravity in file --- 5.0 minutes
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General collection rate of gravity --- 60 seconds
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Theoretical gravity formula --- IAG System 1967
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Reference system --- Potsdam system
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Corrections applied --- DRIFT=-1.04MGAL/DAY BIAS=-.6
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Starting land tie --- 980326.0 WHOI BASE STATION 611/317
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Ending land tie --- 978481.6 WHOI BASE STATION 856/317
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Seismic instrumentation --- (unspecified)
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Formats of seismic data --- (unspecified)
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