Survey Identifier: B00020
Format Acronym: MGD77
Data Center File Number: 03180010
Parameters Surveyed Code: 50000
File Creation Date (yyyymmdd): 19961206
Source Institution: National Ocean Service - NOAA
Country: USA
Platform Name: Davidson
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): CDR T. W. RICHARDS, CMDG, NOAA
Survey Departure Date (yyyymmdd): 19850727
Port of Departure: SEATTLE, WA
Survey Arrival Date (yyyymmdd): 19850828
Port of Arrival: SEATTLE, WA
Navigation Instrumentation: RAYDIST
Bathymetry Instrumentation: BSSS (VERTICAL BEAM EXTRACTION)
Topmost Latitude of Survey: +46
Bottommost Latitude: +44
Leftmost Longitude: -125
Rightmost Longitude: -124
General Digitizing Rate of Bathymetry: 012
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, SYSTEM SPECS: GENERAL INSTRUMENTS BSSS, 36 KHZ, 15 BEAMS, 3.6 METER DRAFT, ROLL_PITCH_SENSOR DATAWELL 19004, VELOCITY_SENSOR PLESSY 5632, HEADING_SENSOR SPERRY, TIME_INSTRUMENTATION CAMAC CRATE INTERFACE CLOCK, NAVIGATION: HORIZONTAL_DATUM NAD83, VERTICAL_DATUM MLLW, DEPTHS CORRECTED USING SOUND VELOCITY PROFILE FROM CTD, ORIGINAL DATA HAS BEEN REPROCESSED TO FIT THE SEABEAM FORMAT
Number of Data Records: 13057
Min/Max Data Record:
Date: 1985 07 27
Latitude: +44.95538
Longitude: -124.50676
Bathymetry, Corrected Depth: 53.0
Min/Max Data Record:
Date: 1985 08 28
Latitude: +45.50651
Longitude: -124.20082
Bathymetry, Corrected Depth: 452.0