Survey Identifier: FRNL85-4
Format Acronym: MGD77
Data Center File Number: 06780033
Parameters Surveyed Code: 55033
File Creation Date (yyyymmdd): 19880610
Source Institution: U.S.GEOLOGICAL SURVEY - WOODS HOLE
Country: U.S.A.
Platform Name: FARNELLA
Platform Type Code: 1
Platform Type: SHIP
Project: EXCLUSIVE ECONOMIC ZONE PUERTO RICO AND U.S.VIRGIN ISLANDS
Survey Departure Date (yyyymmdd): 19851105
Survey Arrival Date (yyyymmdd): 19851202
Navigation Instrumentation: TRANSIT SAT, DR, GPS A FEW HOURS/DAY
Bathymetry Instrumentation: 10KHZ TOWED ECHO SOUNDER
Magnetics Instrumentation: PROTON PRECESSION MAGNETOMETER
Topmost Latitude of Survey: +22
Bottommost Latitude: +15
Leftmost Longitude: -069
Rightmost Longitude: -063
General Digitizing Rate of Bathymetry: 020
Interpolation Scheme: 2MIN INTERVALS INTERPOLATED BETWEEN 6MIN MEASURED VALUES
General Digitizing Rate of Magnetics: 020
Magnetic Sensor Tow Distance: 0200
Reference Field Code: 12
Reference Field: IGRF-85
Additional Documentation: U.S. GEOLOGICAL SURVEY IN COOPERATION WITH GREAT BRITAIN'S INSTITUTE OF, OCEANOGRAPHIC SCIENCES, U.S.G.S. OPEN-FILE REPORT 86-399
Number of Data Records: 19946
Min/Max Data Record:
Date: 1985 11 05
Latitude: +15.11830
Longitude: -68.55040
Bathymetry, 2- Way Traveltime: 004600
Bathymetry, Corrected Depth: 352.0
Magnetics Total Field, 1st Sensor: 388770
Magnetics Residual Field: -04680
Min/Max Data Record:
Date: 1985 12 02
Latitude: +21.85130
Longitude: -63.93160
Bathymetry, 2- Way Traveltime: 109067
Bathymetry, Corrected Depth: 8382.0
Magnetics Total Field, 1st Sensor: 432560
Magnetics Residual Field: +06540