Survey Identifier: RP15SU83
Format Acronym: MGD77
Data Center File Number: 03020142
Parameters Surveyed Code: 50000
File Creation Date (yyyymmdd): 19970305
Source Institution: Oceanic and Atmospheric Research
Country: US
Platform Name: R/V Surveyor
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Malahoff, Hammond,Bradley,Embley
Project: RAIE and NRAIE
Survey Departure Date (yyyymmdd): 19830505
Survey Arrival Date (yyyymmdd): 19830903
Navigation Instrumentation: Loran
Bathymetry Instrumentation: SeaBeam (Vertical Beam Extraction)
Topmost Latitude of Survey: +52
Bottommost Latitude: +43
Leftmost Longitude: -132
Rightmost Longitude: -126
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: Loran data was shifted to correlate with transit satellite fixes, collected during the cruise to force the positions to near-geodetic. Later bad matches were found in this data with the 1994 Chouest Blanco data, (see 09880002). More shifts followed. Other parts of this data were cut and data from 09880002(GPS) used to replace, it in a gridded data set. Data cut was JD 175 08:45-08:55 and JD 176 01:38-01:43 and 18:17-18:23.
Number of Data Records: 44212
Min/Max Data Record:
Date: 1983 05 05
Latitude: +43.10234
Longitude: -131.23199
Bathymetry, 2- Way Traveltime: 011933
Bathymetry, Corrected Depth: 881.0
Min/Max Data Record:
Date: 1983 09 03
Latitude: +51.55916
Longitude: -126.53391
Bathymetry, 2- Way Traveltime: 059147
Bathymetry, Corrected Depth: 4431.0