USGS CMG S-2-72-GA Metadata

NOAA/NOS data

! Converted to time format with year at start.
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DATA COLLECTION OVERVIEW  (use NGDC GEODAS CD to retrieve data)

MCG Data Collection ID ---         S272GA
Institution Data Collection ID --- CONMALAS
NGDC ID ---                        03020022
Funding ---                        (unspecified)
Project, Cruise & Leg ---          GULF OF ALASKA CON. MARGIN CS-2-72
Study region ---                   +61.00000,+56.00000,-151.00000,-140.00000
Chief Scientist(s) ---             (unspecified)
Name of vessel ---                 SURVEYOR (surface ship)
Date field data collection started --- 07/23/72     GULF OF ALASKA
Date field data collection ended ---   09/23/72     GULF OF ALASKA
Parameters surveyed ---
   Bathymetry:                     surveyed, contained in data file
   Magnetics:                      surveyed, contained in data file
   Gravity:                        surveyed, contained in data file
   High-resolution seismics:       surveyed, but not contained in data file
   Deep penetration seismics:      (unspecified)
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)
Date of data input to NGDC ---     02/12/80
Contributing institution ---       NOAA/NOS
Country ---                        USA

Navigation instrumentation ---     DECCA HI-FIX AND SEA-FIX, MAGNAVOX-706SA
Position determination method ---  (unspecified)

Bathymetry instrumentation ---            NARROW B. TRACE PDR/DE-723 FATHOMETER
Additional forms of bathymetric data ---  7
General rate of bathymetry in file ---    11.1 minutes
General collection rate of bathymetry --- (unspecified)
Assumed sound velocity ---                1463.0 m/sec
Bathymetric datum code ---                No correction applied (sea level)
Bathmetry interpolation scheme ---        (unspecified)

Magnetics instrumentation ---            (unspecified)
Additional forms of magnetics data ---   (unspecified)
General rate of magnetics in file ---    11.0 minutes
General collection rate of magnetics --- 20 seconds
Magnetic sensor tow distance ---         (unspecified)
Magnetic sensor depth ---                (unspecified)
Two sensor horizontal separation ---     (unspecified)
Residual magnetics reference field ---   IGRF-65
Method of applying residual field ---    (unspecified)

Gravity instrumentation ---            LACOSTE-ROMBERG STABLE TABLE METER
Additional forms of gravity data ---   ANALOG
General rate of gravity in file ---    11.5 minutes
General collection rate of gravity --- (unspecified)
Theoretical gravity formula ---        (unspecified)
Reference system ---                   (unspecified)
Corrections applied ---                (unspecified)
Starting land tie ---                  (unspecified)
Ending land tie   ---                  (unspecified)

Seismic instrumentation --- SEE AD DOC 18-20
Formats of seismic data --- (unspecified)

Notes ---
RAYTHEON PSR, TELEDYNE HYDROSTREAMER-50/TELEDYNE HYDROPHONE
WORTHINGTON FOUR-STAGE AIR COMPRESSORS
WARNING: MGD77 DATA RECORDS FOR THIS CRUISE MAY CONTAIN NEGATIVE GRAVITY
ANOMALY VALUES THAT SHOULD BE POSITIVE.