Survey Identifier: CONMCALF
Format Acronym: MGD77
Data Center File Number: 03020027
Parameters Surveyed Code: 55511
File Creation Date (yyyymmdd): 19800212
Source Institution: NOAA/NOS
Country: USA
Platform Name: SURVEYOR
Platform Type Code: 1
Platform Type: SHIP
Project: CALIFORNIA CONTINENTAL MARGIN PROJECT, OPR 494
Funding: NOAA
Survey Departure Date (yyyymmdd): 19700317
Port of Departure: 30N 166 W
Survey Arrival Date (yyyymmdd): 19700915
Port of Arrival: 40 N 128 W
Navigation Instrumentation: SATELLITE,R-R DECCA LAMBDA, LORAC B
Geodetic Datum/Position: 06
Magnetics Instrumentation: VARIAN V-4937, RAYTHEON DE 723 FATH
Additional Forms of Magnetics Data: ANALOG RECORDS, PUNCHED CARDS
Gravity Instrumentation: BELL BGM-2 METER, LACOSTE-ROMBERG S-51
Topmost Latitude of Survey: +40
Bottommost Latitude: +18
Leftmost Longitude: -130
Rightmost Longitude: -113
General Digitizing Rate of Bathymetry: 28
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 60
Magnetic Sensor Tow Distance: 0280
Reference Field Code: 88
Reference Field: IGRF-70
Method of Applying Residual Field: 5-MIN INTERV. TAKEN ALONG DISTINCT LINE SEGS
General Digitizing Rate of Gravity: 40
Additional Documentation: 06- GENERAL INSTRUMENTS NARROW BEAM/ RAYTHEON DE 723, WARNING: MGD77 DATA RECORDS FOR THIS CRUISE MAY CONTAIN NEGATIVE GRAVITY, ANOMALY VALUES THAT SHOULD BE POSITIVE.
Number of Data Records: 81228
Min/Max Data Record:
Date: 1970 03 17
Latitude: +18.92200
Longitude: -129.77000
Bathymetry, 2- Way Traveltime: 000550
Bathymetry, Corrected Depth: 41.0
Magnetics Total Field, 1st Sensor: 392550
Magnetics Residual Field: -07490
Free-Air Anomaly: -1080
Min/Max Data Record:
Date: 1970 09 15
Latitude: +40.00000
Longitude: -113.01200
Bathymetry, 2- Way Traveltime: 067050
Bathymetry, Corrected Depth: 5043.0
Magnetics Total Field, 1st Sensor: 522300
Magnetics Residual Field: +68020
Free-Air Anomaly: -0010