Survey Identifier: M28-2
Format Acronym: MGD77
Data Center File Number: 83050034
Parameters Surveyed Code: 50000
File Creation Date (yyyymmdd): 19971029
Source Institution: Bundesamt Seeschiffahrt HydrographieBSH
Country: Germany
Platform Name: R/V Meteor
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): ZENK
Project: WOCE EXPOCODE 06MT28_2, AR15
Survey Departure Date (yyyymmdd): 19940527
Survey Arrival Date (yyyymmdd): 19940605
Navigation Instrumentation: GPS (INS)
Geodetic Datum/Position: Transit satellite navigation
Bathymetry Instrumentation: Atlas Hydrosweep DS
Topmost Latitude of Survey: -33
Bottommost Latitude: -36
Leftmost Longitude: -031
Rightmost Longitude: -026
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: Atlas Hydrosweep DS is a hydrographic "multi-beam echosounder" which provides, measurements of depths, signal strengths, and a "mean velocity of sound in, water" by 59 performed beams (PFBs) which cover a sector of 90 degrees below, the ship. In the "survey mode" the fan of PFBs is oriented across the ship's, axis, in the "calibration mode" it is oriented along the ship's axis. MBSystem's (LDEO) mbcopy command was used to convert the raw format to a URI, VAX byte order format from which the vertical beam was then extracted.
Number of Data Records: 3915
Min/Max Data Record:
Date: 1994 05 27
Latitude: -35.54738
Longitude: -30.41471
Bathymetry, Corrected Depth: 2256.0
Min/Max Data Record:
Date: 1994 06 05
Latitude: -33.27008
Longitude: -26.33255
Bathymetry, Corrected Depth: 8854.0