Survey Identifier: C2507
Format Acronym: MGD77
Data Center File Number: 01010242
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19901129
Source Institution: Lamont-Doherty Geological Observatory
Country: United States
Platform Name: R/V Conrad
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Dr. J Cochran
Project: c2507
Funding: NSF
Survey Departure Date (yyyymmdd): 19840524
Port of Departure: Piraes, Greece
Survey Arrival Date (yyyymmdd): 19840704
Port of Arrival: Piraes, Greece
Navigation Instrumentation: LORAN, TRANSIT SATELLITE
Geodetic Datum/Position: DEAD RECKONING
Bathymetry Instrumentation: seabeam
Additional Forms of Bathymetric Data: 3.5 PDR
Magnetics Instrumentation: proton procession
Gravity Instrumentation: Bell BGM-3
Topmost Latitude of Survey: +38
Bottommost Latitude: +26
Leftmost Longitude: +023
Rightmost Longitude: +036
General Digitizing Rate of Bathymetry: 10
General Sampling Rate of Bathymetry: VAR W/ DEPTH
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 0
General Digitizing Rate of Magnetics: 10
Reference Field Code: 4
Reference Field: IGRF-75
General Digitizing Rate of Gravity: 10
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 2
Reference System Code: 2
Reference System: Potsdam
Additional Documentation: URI MULTIBEAM BATHY INVENTORY 1 MINUTE EXTRACTIONS CLOSEST TO THE MINUTE, (VERTICAL BEAM). Other data collecte on this cruise were heat flow and ocean, bottom seismometer.
Number of Data Records: 50698
Min/Max Data Record:
Date: 1984 05 24
Latitude: +26.12533
Longitude: +23.58916
Bathymetry, 2- Way Traveltime: 000533
Bathymetry, Corrected Depth: 40.0
Magnetics Total Field, 1st Sensor: 390540
Magnetics Residual Field: -26978
Observed Gravity: 9789625
Free-Air Anomaly: -1920
Min/Max Data Record:
Date: 1984 07 03
Latitude: +37.93916
Longitude: +35.99016
Bathymetry, 2- Way Traveltime: 042413
Bathymetry, Corrected Depth: 3255.0
Magnetics Total Field, 1st Sensor: 446280
Magnetics Residual Field: +02909
Observed Gravity: 9801017
Free-Air Anomaly: +1203