USGS CMG L-6-77-EG Metadata

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DATA COLLECTION OVERVIEW  (use NGDC GEODAS CD to retrieve data)

MCG Data Collection ID ---         L677EG
Institution Data Collection ID --- L677EG
NGDC ID ---                        06050014
Funding ---                        (unspecified)
Project, Cruise & Leg ---          EASTERN GULF OF ALASKA
Study region ---                   +61.00000,+54.00000,-152.00000,-131.00000
Chief Scientist(s) ---             Terry Bruns
Name of vessel ---                 Lee (surface ship)
Date field data collection started --- 06/13/77     LV KETCHIKAN, ALASKA
Date field data collection ended ---   06/30/77     AR KODIAK, ALASKA
Parameters surveyed ---
   Bathymetry:                     surveyed, contained in data file
   Magnetics:                      surveyed, contained in data file
   Gravity:                        surveyed, contained in data file
   High-resolution seismics:       (unspecified)
   Deep penetration seismics:      surveyed, contained in data file
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 ---     05/21/87
Contributing institution ---       USGS Branch of Pacific Marine Geology
Country ---                        United States

Navigation instrumentation ---     SHIPBOARD INTEGRATED NAV DOPPLER SONAR N
Position determination method ---  AV MINIRANGER NAVIGATION LORAN C RHO R

Bathymetry instrumentation ---            3.5 KHZ 12 KHZ DIGITRAK BATHYMETRY
Additional forms of bathymetric data ---  (unspecified)
General rate of bathymetry in file ---    1.4 minutes
General collection rate of bathymetry --- (unspecified)
Assumed sound velocity ---                (unspecified)
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 ---    1.0 minutes
General collection rate of magnetics --- (unspecified)
Magnetic sensor tow distance ---         (unspecified)
Magnetic sensor depth ---                (unspecified)
Two sensor horizontal separation ---     (unspecified)
Residual magnetics reference field ---   (unspecified)
Method of applying residual field ---    (unspecified)

Gravity instrumentation ---            BURG SEISMIC SYSTEM
Additional forms of gravity data ---   (unspecified)
General rate of gravity in file ---    1.1 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 --- 24 CHANNEL SEIS (GUS) SINGLE CHAN.AIRGUN
Formats of seismic data --- (unspecified)

Mann, Dennis M., and Bruns, Terry R., 1984, Multichannel seismic-reflection 
profiles collected
in 1977 in the eastern Gulf of Alaska: U.S. Geological Survey Open-File Report 
84-0006, 3 p.