Survey Identifier: POL7304
Format Acronym: MGD77
Data Center File Number: 03040061
Parameters Surveyed Code: 55530
File Creation Date (yyyymmdd): 19800209
Source Institution: NOAA/POL
Country: UNITED STATES
Platform Name: OCEANOGRAPHER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DR. ROBERT E. BURNS(POL)
Project: RP-2-OC-73 NAZCA PLATE STUDY LEG 4
Funding: NSF/IDOE
Survey Departure Date (yyyymmdd): 19730517
Port of Departure: VALPARAISO, CHILE
Survey Arrival Date (yyyymmdd): 19730610
Port of Arrival: SEATTLE, WASHINGTON,USA
Navigation Instrumentation: MAGNAVOX 706 SATELLITE/PROTOTYPE AN/SRN9
Bathymetry Instrumentation: RAYTHEON(CESP)/(PTR-105)/SEE AD DOC 18
Additional Forms of Bathymetric Data: ANALOG/MAGNETIC AND PAPER TAPE
Magnetics Instrumentation: VARIAN DIRECT READING MAGNETOMETER
Additional Forms of Magnetics Data: ANALOG/MAGNETIC AND PAPER TAPE
Gravity Instrumentation: ASKANIA GSS-2/ANSHUTZ/LACOSTE-ROMBERG
Additional Forms of Gravity Data: ANALOG/MAGNETIC AND PAPER TAPE
Seismic Instrumentation: SEE AD DOC 20-23
Topmost Latitude of Survey: +48
Bottommost Latitude: -33
Leftmost Longitude: -130
Rightmost Longitude: -071
General Digitizing Rate of Bathymetry: 50
General Digitizing Rate of Magnetics: 50
Magnetic Sensor Tow Distance: 229
General Digitizing Rate of Gravity: 51
Departure Base Station Gravity: 9796325
Departure Base Station Description: VALPARAISO ACIC #0301-1
Arrival Base Station Gravity: 9807422
Arrival Base Station Description: PMC SEATTLE
Additional Documentation: EDO-240-H TRANSDUCERS/RAYTHEON PF-101 RECORDER (ONE SECOND FULL SCALE SWEEP), REFLECTION: 120 CUBIC INCH BOOT AIR GUN-1900C/RIX AIR COMPRESSOR-K98/TELEDYNE, AND AQUATRONICS HYDROPHONE STREAMERS/TELEDYNE AMPLIFIER-FILTER SYSTEM/HP, REFRACTION: 8875A AMPLIFIERS/KROHN-HITE 3700 BAND PASS FILTER, REFRACTION: SSQ-41 SONOBUOYS, *** GRAVITY ANOMALY SIGNS REPAIRED 870206, OTHER PARMAMETERS UNCHANGED ***
Number of Data Records: 7336
Min/Max Data Record:
Date: 1973 05 17
Latitude: -32.90500
Longitude: -129.00330
Bathymetry, 2- Way Traveltime: 003895
Bathymetry, Corrected Depth: 293.0
Magnetics Total Field, 1st Sensor: 264720
Magnetics Residual Field: -09390
Free-Air Anomaly: -1675
Min/Max Data Record:
Date: 1973 06 10
Latitude: +47.82660
Longitude: -71.80330
Bathymetry, 2- Way Traveltime: 079765
Bathymetry, Corrected Depth: 6029.0
Magnetics Total Field, 1st Sensor: 557760
Magnetics Residual Field: +05930
Free-Air Anomaly: +1105