Survey Identifier: AMLR90
Format Acronym: MGD77
Data Center File Number: 03020048
Parameters Surveyed Code: 50000
File Creation Date (yyyymmdd): 19920730
Source Institution: NATIONAL OCEAN SERVICE
Country: USA
Platform Name: Surveyor
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): CAPT. W. T. TURNBULL
Survey Departure Date (yyyymmdd): 19900102
Port of Departure: PUNTA ARENAS, CHILE
Survey Arrival Date (yyyymmdd): 19900304
Port of Arrival: PUNTA ARENAS, CHILE
Navigation Instrumentation: GPS
Geodetic Datum/Position: TRANSIT -SECONDARY
Bathymetry Instrumentation: SEABEAM (VERTICAL BEAM EXTRACTION)
Topmost Latitude of Survey: -55
Bottommost Latitude: -66
Leftmost Longitude: -069
Rightmost Longitude: -053
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: VAR W/ DEPTH
Interpolation Scheme: 1 MINUTE EXTRACTIONS CLOSEST TO THE MINUTE (VERTICAL BM)
Additional Documentation: COMPLETE META DATA FOUND IN HEADER FILES ACCOMPANYING FULL RESOLUTION DATA, LOCATION: DRAKE PASSAGE, ELEPHANT ISLAND AND WEDDELL SEA, ANTARCTICA (THIS, CRUISE 03020151 AND 03020048 ARE BOTH PART OF THE AMLR90 PROJECT), SYSTEM SPECS: SEABEAM, 12 KHZ, 15 BEAMS, 5.1 METER DRAFT, ROLL_PITCH_SENSOR, SINGER KEARFOTT C-704101026 S/N 285, HEADING_SENSOR SPERRY MK 227 S/N 543, NAVIGATION: HORIZONTAL_DATUM NAD83, VERTICAL_DATUM MLLW, DEPTHS CORRECTED USING SOUND VELOCITY PROFILE FROM CTD
Number of Data Records: 35891
Min/Max Data Record:
Date: 1990 01 02
Latitude: -65.41507
Longitude: -68.66186
Bathymetry, Corrected Depth: 42.0
Min/Max Data Record:
Date: 1990 03 04
Latitude: -55.87719
Longitude: -53.64367
Bathymetry, Corrected Depth: 5140.0