Survey Identifier: M27-3


Format Acronym: MGD77
Data Center File Number: 83050032
Parameters Surveyed Code: 50000
File Creation Date (yyyymmdd): 19971028
Source Institution: Bundesamt Seeschiffahrt HydrographieBSH
Country: Germany
Platform Name: R/V Meteor
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): SCHOTT
Project: WOCE EXPOCODE 06MT27_3, AR04EW/AR15
Survey Departure Date (yyyymmdd): 19940226
Survey Arrival Date (yyyymmdd): 19940318
Navigation Instrumentation: GPS (INS)
Geodetic Datum/Position: Transit satellite navigation
Bathymetry Instrumentation: Atlas Hydrosweep DS
Topmost Latitude of Survey: +12
Bottommost Latitude: -01
Leftmost Longitude: -045
Rightmost Longitude: -034
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: 12711

Min/Max Data Record:
Date: 1994 02 26
Latitude: -0.33527
Longitude: -44.40371
Bathymetry, Corrected Depth: 624.0

Min/Max Data Record:
Date: 1994 03 18
Latitude: +11.04312
Longitude: -34.98858
Bathymetry, Corrected Depth: 8182.0