Survey Identifier: CONMALAS


Format Acronym: MGD77
Data Center File Number: 03020022
Parameters Surveyed Code: 55530
File Creation Date (yyyymmdd): 19800212
Source Institution: NOAA/NOS
Country: USA
Platform Name: SURVEYOR
Platform Type Code: 1
Platform Type: SHIP
Project: GULF OF ALASKA CON. MARGIN CS-2-72
Survey Departure Date (yyyymmdd): 19720723
Port of Departure: GULF OF ALASKA
Survey Arrival Date (yyyymmdd): 19720923
Port of Arrival: GULF OF ALASKA
Navigation Instrumentation: DECCA HI-FIX AND SEA-FIX, MAGNAVOX-706SA
Bathymetry Instrumentation: NARROW B. TRACE PDR/DE-723 FATHOMETER
Additional Forms of Bathymetric Data: 7
Gravity Instrumentation: LACOSTE-ROMBERG STABLE TABLE METER
Additional Forms of Gravity Data: ANALOG
Seismic Instrumentation: SEE AD DOC 18-20
Topmost Latitude of Survey: +61
Bottommost Latitude: +56
Leftmost Longitude: -151
Rightmost Longitude: -140
General Digitizing Rate of Bathymetry: 111
Assumed Sound Velocity: 14630
General Digitizing Rate of Magnetics: 110
General Sampling Rate of Magnetics: 20
Reference Field Code: 03
Reference Field: IGRF-65
General Digitizing Rate of Gravity: 115
Additional Documentation: RAYTHEON PSR, TELEDYNE HYDROSTREAMER-50/TELEDYNE HYDROPHONE, AMPLIFIER-24220/BOLT PNEUMATIC SOUND SOURCE-600 AND 1500/, WORTHINGTON FOUR-STAGE AIR COMPRESSORS, WARNING: MGD77 DATA RECORDS FOR THIS CRUISE MAY CONTAIN NEGATIVE GRAVITY, ANOMALY VALUES THAT SHOULD BE POSITIVE.
Number of Data Records: 7326

Min/Max Data Record:
Date: 1972 07 23
Latitude: +56.25330
Longitude: -150.11480
Bathymetry, 2- Way Traveltime: 000025
Bathymetry, Corrected Depth: 2.0
Magnetics Total Field, 1st Sensor: 532380
Magnetics Residual Field: -20210
Free-Air Anomaly: -9680

Min/Max Data Record:
Date: 1972 09 23
Latitude: +60.28390
Longitude: -140.81870
Bathymetry, 2- Way Traveltime: 068700
Bathymetry, Corrected Depth: 5155.0
Magnetics Total Field, 1st Sensor: 569300
Magnetics Residual Field: +07890
Free-Air Anomaly: +0000