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! Converted to time format with year at start.
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!
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DATA COLLECTION OVERVIEW (use NGDC GEODAS CD to retrieve data)
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MCG Data Collection ID --- S170NP
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Institution Data Collection ID --- CONMCALF
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NGDC ID --- 03020027
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Funding --- NOAA
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Project, Cruise & Leg --- CALIFORNIA CONTINENTAL MARGIN PROJECT, OPR 494
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Study region --- +40.00000,+18.00000,-130.00000,-113.00000
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Chief Scientist(s) --- (unspecified)
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Name of vessel --- SURVEYOR (surface ship)
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Date field data collection started --- 03/17/70 30N 166 W
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Date field data collection ended --- 09/15/70 40 N 128 W
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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: not surveyed
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Deep penetration seismics: not surveyed
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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 --- 02/12/80
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Contributing institution --- NOAA/NOS
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Country --- USA
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Navigation instrumentation --- SATELLITE,R-R DECCA LAMBDA, LORAC B
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Position determination method --- 06
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Bathymetry instrumentation --- (unspecified)
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Additional forms of bathymetric data --- (unspecified)
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General rate of bathymetry in file --- 2.8 minutes
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General collection rate of bathymetry --- (unspecified)
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Assumed sound velocity --- (unspecified)
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Bathymetric datum code --- No correction applied (sea level)
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Bathmetry interpolation scheme --- (unspecified)
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Magnetics instrumentation --- VARIAN V-4937, RAYTHEON DE 723 FATH
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Additional forms of magnetics data --- ANALOG RECORDS, PUNCHED CARDS
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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 --- 280 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-70
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Method of applying residual field --- 5-MIN INTERV. TAKEN ALONG DISTINCT LINE SEGS
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Gravity instrumentation --- BELL BGM-2 METER, LACOSTE-ROMBERG S-51
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Additional forms of gravity data --- (unspecified)
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General rate of gravity in file --- 4.0 minutes
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General collection rate of gravity --- (unspecified)
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Theoretical gravity formula --- (unspecified)
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Reference system --- (unspecified)
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Corrections applied --- (unspecified)
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Starting land tie --- (unspecified)
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Ending land tie --- (unspecified)
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Notes ---
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06- GENERAL INSTRUMENTS NARROW BEAM/ RAYTHEON DE 723
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WARNING: MGD77 DATA RECORDS FOR THIS CRUISE MAY CONTAIN NEGATIVE GRAVITY
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ANOMALY VALUES THAT SHOULD BE POSITIVE.
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