Survey Identifier: POL6702
Format Acronym: MGD77
Data Center File Number: 03040083
Parameters Surveyed Code: 55530
File Creation Date (yyyymmdd): 19800207
Source Institution: NOAA
Country: USA
Platform Name: OCEANOGRAGHER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DR. GEORGE H. KELLER (AOL/ESSA)
Project: OPR 476 GLOBAL CRUISE (M-DAY)
Funding: NOAA
Survey Departure Date (yyyymmdd): 19671011
Port of Departure: WELLINGTON, NEW ZEALAND
Survey Arrival Date (yyyymmdd): 19671030
Port of Arrival: VALPARAISO, CHILE
Navigation Instrumentation: TRANSIT SAT./OMEGA/LORAN-A/CELESTIAL
Geodetic Datum/Position: SATELLITE
Bathymetry Instrumentation: RAYTHEON(DE-723)/N.B. ECHO SOUNDER(4.5)
Additional Forms of Bathymetric Data: ANALOG
Magnetics Instrumentation: VARIAN(V-4937)
Additional Forms of Magnetics Data: ANALOG
Gravity Instrumentation: GRAF-ASKANIA GYROSTABILIZED GRAVIMETER
Additional Forms of Gravity Data: ANALOG
Seismic Instrumentation: SEISMIC REFLECT. PROFILER SEE AD DOC 22
Topmost Latitude of Survey: -32
Bottommost Latitude: -42
Leftmost Longitude: +175
Rightmost Longitude: -072
General Digitizing Rate of Bathymetry: 63
Assumed Sound Velocity: 14630
General Digitizing Rate of Magnetics: 63
General Sampling Rate of Magnetics: 60
General Digitizing Rate of Gravity: 63
Departure Base Station Gravity: 9771303
Departure Base Station Description: WILLINGTON,N.Z. SEE AD DOC 18-19
Arrival Base Station Gravity: 9771280
Arrival Base Station Description: VALPARAISO, CHILE (TIE-671031)
Additional Documentation: (TIE-671005) UPPER MARKING/SCREW MOVED ON DAY 267, 55.23 MG SHOULD BE ADDED TO, ALL GRAVITY VALUES AFTER DAY 267 (SEPT. 24), ** GRAVITY ANOMALY SIGNS REPAIRED 870206, OTHER PARAMETERS UNCHANGED **, 160CC AIR GUN/RECEIVED BY 30 M ARRAY OF 100 CRYSTAL HYDROPHONES(100 M BEHIND, SHIP) INCOMING SIGNALS FILTERED BETWEEN 40 AND 200 HZ CONTINUOUSLY, RECORDED ON FACSIMILE RECORDER
Number of Data Records: 4636
Min/Max Data Record:
Date: 1967 10 11
Latitude: -41.74410
Longitude: -179.99710
Bathymetry, 2- Way Traveltime: 001530
Bathymetry, Corrected Depth: 115.0
Magnetics Total Field, 1st Sensor: 201400
Magnetics Residual Field: -57250
Free-Air Anomaly: -4079
Min/Max Data Record:
Date: 1967 10 30
Latitude: -32.26240
Longitude: +179.98780
Bathymetry, 2- Way Traveltime: 107830
Bathymetry, Corrected Depth: 8253.0
Magnetics Total Field, 1st Sensor: 579300
Magnetics Residual Field: +69040
Free-Air Anomaly: +4206