Survey Identifier: B00146
Format Acronym: MGD77
Data Center File Number: 03020110
Parameters Surveyed Code: 50000
File Creation Date (yyyymmdd): 19
Source Institution: NATIONAL OCEAN SERVICE
Country: USA
Platform Name: SURVEYOR
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): CAPT. W. L. STUBBLEFIELD
Survey Departure Date (yyyymmdd): 19880622
Port of Departure: SEATTLE, WA
Survey Arrival Date (yyyymmdd): 19880629
Port of Arrival: SEATTLE, WA
Navigation Instrumentation: ARGO
Geodetic Datum/Position: NONE
Bathymetry Instrumentation: SEABEAM (VERTICAL BEAM EXTRACTION)
Topmost Latitude of Survey: +60
Bottommost Latitude: +59
Leftmost Longitude: -146
Rightmost Longitude: -145
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: 23 NMILES NE OF MIDDLETON ISLAND, AK, SYSTEM SPECS: GENERAL INSTRUMENTS SEABEAM, 12 KHZ, 16 BEAMS, 5.1 METER DRAFT, ROLL_PITCH_SENSOR DATAWELL HIPPY 120, HEADING_SENSOR SPERRY MK 227, TIME_INSTRUMENTATION CPU CLOCK, NAVIGATION: HORIZONTAL_DATUM NAD83, VERTICAL_DATUM MLLW, DEPTHS CORRECTED USING SOUND VELOCITY PROFILE FROM CTD
Number of Data Records: 634
Min/Max Data Record:
Date: 1988 06 22
Latitude: +59.48502
Longitude: -145.86289
Bathymetry, Corrected Depth: 178.0
Min/Max Data Record:
Date: 1988 06 29
Latitude: +59.55128
Longitude: -145.58375
Bathymetry, Corrected Depth: 1051.0