Survey Identifier: B00048
Format Acronym: MGD77
Data Center File Number: 03180014
Parameters Surveyed Code: 50000
File Creation Date (yyyymmdd): 19961104
Source Institution: NOAA - National Ocean Service
Country: USA
Platform Name: Davidson
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): CDR D. W. YEAGER, CMDG, NOAA
Survey Departure Date (yyyymmdd): 19860505
Port of Departure: SEATTLE, WA
Survey Arrival Date (yyyymmdd): 19860629
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: 013
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, 3.4 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: 6955
Min/Max Data Record:
Date: 1986 05 05
Latitude: +44.46324
Longitude: -124.98180
Bathymetry, Corrected Depth: 144.0
Min/Max Data Record:
Date: 1986 06 29
Latitude: +45.00837
Longitude: -124.54858
Bathymetry, Corrected Depth: 720.0