Survey Identifier: DI109L1
Format Acronym: MGD77
Data Center File Number: 19100020
Parameters Surveyed Code: 51511
File Creation Date (yyyymmdd): 19850131
Source Institution: INSTITUTE OF OCEANOGRAPHIC SCIENCES, UK
Country: UNITED KINGDOM
Platform Name: DISCOVERY
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): A. STRIDE PROF G.WESTBROOK
Project: DISCOVERY CRUISE 109 LEG 1
Funding: N.E.R.C.
Survey Departure Date (yyyymmdd): 19800311
Port of Departure: PUERTO RICO
Survey Arrival Date (yyyymmdd): 19800325
Port of Arrival: BARBADOS
Navigation Instrumentation: MAGNAVOX SATELLITE NAVIGATOR
Geodetic Datum/Position: PRIM-SAT PLUS DEAD RECKONING
Bathymetry Instrumentation: PRECISION ECHO SOUNDER - IOS MK 3
Additional Forms of Bathymetric Data: ANALOGUE
Gravity Instrumentation: LACOSTE AND ROMBERG S84
Additional Forms of Gravity Data: ANALOGUE
Topmost Latitude of Survey: +20
Bottommost Latitude: +11
Leftmost Longitude: -065
Rightmost Longitude: -057
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: 2/SEC
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Gravity: 060
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM 1967
Reference System Code: 3
Reference System: IGSN-71
Corrections Applied: CROSS COUPLING PLUS EOTVOS
Additional Documentation: CONTACT PROF G. WESTBROOK UNIVERSITY OF BIRMINGHAM ENGLAND FOR GRAVITY BASES, AND INSTRUMENTATION
Number of Data Records: 10022
Min/Max Data Record:
Date: 1980 03 11
Latitude: +11.10020
Longitude: -64.62450
Bathymetry, Corrected Depth: 100.0
Free-Air Anomaly: -2680
Min/Max Data Record:
Date: 1980 03 25
Latitude: +19.99420
Longitude: -57.41550
Bathymetry, Corrected Depth: 7323.0
Free-Air Anomaly: +0790