Survey Identifier: EW9203
Format Acronym: MGD77
Data Center File Number: 01210020
Parameters Surveyed Code: 55513
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
Chief Scientist(s): J.MUTTER
Project: WOODLARK BASIN
Funding: NSF OCE90-12730
Survey Departure Date (yyyymmdd): 19920317
Port of Departure: GLADSTONE, AUSTRALIA
Survey Arrival Date (yyyymmdd): 19920424
Port of Arrival: PAPEETE, TAHITI
Navigation Instrumentation: MAGNAVOX MX-1107RS TRANSIT, T-SET GPS
Geodetic Datum/Position: GPS/TRANSIT FIXES + SPEED/HEADING
Bathymetry Instrumentation: ATLAS HYDROSWEEP-DS MULTIBEAM SONAR
Magnetics Instrumentation: VARIAN V-75 MAGNETOMETER
Gravity Instrumentation: BODENSEEWERKE KSS-30 GRAVIMETER
Seismic Instrumentation: DIGICON DMS-2000 MULTI-CHANNEL ARRAY
Topmost Latitude of Survey: -08
Bottommost Latitude: -24
Leftmost Longitude: +146
Rightmost Longitude: -149
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 -.01304 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: THT-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: 55663
Min/Max Data Record:
Date: 1992 03 17
Latitude: -23.92310
Longitude: -179.99995
Bathymetry, 2- Way Traveltime: 000230
Bathymetry, Corrected Depth: 17.0
Magnetics Total Field, 1st Sensor: 417010
Magnetics Residual Field: -51220
Free-Air Anomaly: -2506
Min/Max Data Record:
Date: 1992 04 24
Latitude: -8.49744
Longitude: +179.99682
Bathymetry, 2- Way Traveltime: 110920
Bathymetry, Corrected Depth: 8500.0
Magnetics Total Field, 1st Sensor: 484600
Magnetics Residual Field: +14000
Free-Air Anomaly: +2114