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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 --- W688NP
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Institution Data Collection ID --- RNDB06WT
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NGDC ID --- 15040182
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Funding --- (unspecified)
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Project, Cruise & Leg --- ROUNDABOUT LEG 6
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Study region --- +55.00000,+48.00000,+164.00000,-166.00000
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Chief Scientist(s) --- P. LONSDALE, L. KEIGWIN
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Name of vessel --- R/V T.WASHINGTON (surface ship)
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Date field data collection started --- 08/05/88 DUTCH HARBOR, ALASKA
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Date field data collection ended --- 09/05/88 DUTCH HARBOR, ALASKA
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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: (unspecified)
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High-resolution seismics: surveyed, but not contained in data file
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Deep penetration seismics: surveyed, but not contained in data file
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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 --- 00/00/00
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Contributing institution --- SCRIPPS INSTITUTION OF OCEANOGRAPHY
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Country --- USA
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Navigation instrumentation --- SATNAV/GPS,AUTO LOG GYRO+2D DOPPLER SPD
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Position determination method --- LINEAR INTERP.BETWEEN ADJACENT FIXES
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Bathymetry instrumentation --- SEABEAM VERTICAL BEAM (2&2/3 DEG)& 3.5
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Additional forms of bathymetric data --- ANAL.REC,35MM FILM,DIGITAL MAG. TAPE
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General rate of bathymetry in file --- 1.0 minutes
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General collection rate of bathymetry --- 1PING IN H2O
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Assumed sound velocity --- 1500.0 m/sec
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Bathymetric datum code --- No correction applied (sea level)
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Bathmetry interpolation scheme --- 1 MINUTE AVERAGES EXTRACTED FROM SEABEAM VERTICAL BEAMS
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Magnetics instrumentation --- GEOMETRICS MAGNETOMETER MOD G-801/3
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Additional forms of magnetics data --- ANAL.REC,35MM FILM,DIGITAL MAG. TAPE
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General rate of magnetics in file --- 1.0 minutes
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General collection rate of magnetics --- 6 seconds
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Magnetic sensor tow distance --- (unspecified)
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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 --- LIN.INTERP.POINTS WITHIN ONE DEGREE SQUARE
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Gravity instrumentation --- BELL BGM-3 METER
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Additional forms of gravity data --- DIGITAL MAG TAPE
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General rate of gravity in file --- 1.0 minutes
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General collection rate of gravity --- 1 seconds
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Theoretical gravity formula --- IAG System 1967
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Reference system --- System IGSN 71
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Corrections applied --- EOTVOS AND METER DRIFT
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Starting land tie --- 981538.4 DOD 2178-0 DUTCH HARBOR
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Ending land tie --- 981538.4 DOD 2178-0 DUTCH HARBOR
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Seismic instrumentation --- 80 CU IN H2O & 1900C-BOLT AIRGUN
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Formats of seismic data --- ANAL.REC.,35MM FILM,DIGITAL MAG TAPE
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Notes ---
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PROCESSED BY GEOLOGICAL DATA CENTER, SCRIPPS INSTITUTION OF OCEANOGRAPHY
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GRAVITY PROCESSED IN NOVEMBER 1989
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