Survey Identifier: EW9202
Format Acronym: MGD77
Data Center File Number: 01210019
Parameters Surveyed Code: 51531
File Creation Date (yyyymmdd): 19961104
Source Institution: LAMONT-DOHERTY EARTH OBSERVATORY (LDEO)
Country: USA
Platform Name: R/V MAURICE EWING
Platform Type Code: 1
Platform Type: SHIP
Project: TRANSIT LEG
Survey Departure Date (yyyymmdd): 19920306
Port of Departure: LYTTLETON, NEW ZEALAND
Survey Arrival Date (yyyymmdd): 19920314
Port of Arrival: GLADSTONE, AUSTRALIA
Navigation Instrumentation: MAGNAVOX MX-1107RS TRANSIT, T-SET GPS
Geodetic Datum/Position: GPS/TRANSIT FIXES + SPEED/HEADING
Bathymetry Instrumentation: ATLAS HYDROSWEEP-DS MULTIBEAM SONAR
Additional Forms of Bathymetric Data: RAYTHEON 3.5KHZ PDR
Magnetics Instrumentation: NO MAGNETICS DATA COLLECTED
Gravity Instrumentation: BODENSEEWERKE KSS-30 GRAVIMETER
Seismic Instrumentation: NO SEISMIC DATA COLLECTED
Topmost Latitude of Survey: -23
Bottommost Latitude: -44
Leftmost Longitude: +151
Rightmost Longitude: +175
General Digitizing Rate of Bathymetry: 010
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: 1-MINUTE INTERVALS
General Digitizing Rate of Magnetics: 010
Reference Field Code: 88
Reference Field: IGRF-90
Method of Applying Residual Field: BILINEAR INTERPOLATION IN 1-DEGREE SQUARE
General Digitizing Rate of Gravity: 010
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL 30
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Corrections Applied: DRIFT -.013 MGAL/DAY, DC -.24
Departure Base Station Gravity: 9805081
Departure Base Station Description: ACIC 0217-0
Arrival Base Station Gravity: 9786993
Arrival Base Station Description: TNT-N PAPEETE
Additional Documentation: TIME: KINEMETRICS GPS-DC, SPEED: FURUNO CI-30, HEADING: SPERRY MK-27, SCIENCE OFFICER: J.STENNETT COMPUTER SYSTEMS: W.ROBINSON, DATA REDUCED BY LDEO MARINE OFFICE DATA REDUCTION GROUP, CONTACT LDEO MG&G ARCHIVIST WITH QUESTIONS/PROBLEMS: MGGDB@LDEO.COLUMBIA.EDU, ORIGINAL RECORDS ARCHIVED AT LDEO
Number of Data Records: 11601
Min/Max Data Record:
Date: 1992 03 06
Latitude: -43.61309
Longitude: +151.25621
Bathymetry, 2- Way Traveltime: 000160
Bathymetry, Corrected Depth: 12.0
Free-Air Anomaly: -0903
Min/Max Data Record:
Date: 1992 03 14
Latitude: -23.83163
Longitude: +174.53384
Bathymetry, 2- Way Traveltime: 064100
Bathymetry, Corrected Depth: 4828.0
Free-Air Anomaly: +0608