Survey Identifier: C2503

Format Acronym: MGD77
Data Center File Number: 01010238
Parameters Surveyed Code: 53531
File Creation Date (yyyymmdd): 19901210
Country: United States
Platform Name: R/V Conrad
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Dr. William Ryan
Project: c2503
Survey Departure Date (yyyymmdd): 19840226
Port of Departure: Norfolk, Va.
Survey Arrival Date (yyyymmdd): 19840310
Port of Arrival: Bermuda
Navigation Instrumentation: TRANSIT SATELLITE, LORAN
Geodetic Datum/Position: DEAD RECKONING
Bathymetry Instrumentation: seabeam vertical beam
Additional Forms of Bathymetric Data: 3.5 PDR
Gravity Instrumentation: Bell BGM-3
Topmost Latitude of Survey: +38
Bottommost Latitude: +31
Leftmost Longitude: -078
Rightmost Longitude: -065
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 Gravity: 10
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 2
Reference System Code: 2
Reference System: Potsdam
Additional Documentation: Single beam bathymetric data from 68.852 to 65.734 degrees W are from URI, processed multibeam with an interpolation scheme of 1 MINUTE EXTRACTIONS, CLOSEST TO THE MINUTE (VERTICAL BM)
Number of Data Records: 17762

Min/Max Data Record:
Date: 1984 02 26
Latitude: +12.10611
Longitude: -77.40002
Bathymetry, 2- Way Traveltime: 003148
Bathymetry, Corrected Depth: 241.0
Observed Gravity: 9793183
Free-Air Anomaly: -0654

Min/Max Data Record:
Date: 1984 03 10
Latitude: +37.03370
Longitude: -24.92584
Bathymetry, 2- Way Traveltime: 071588
Bathymetry, Corrected Depth: 5431.0
Observed Gravity: 9798872
Free-Air Anomaly: +0547