Survey Identifier: LEG176JR
Format Acronym: MGD77
Data Center File Number: 23060082
Parameters Surveyed Code: 55111
File Creation Date (yyyymmdd): 19980624
Source Institution: OCEAN DRILLING PROGRAM/TEXAS A&M
Country: USA+ODP MEMBERS
Platform Name: JOIDES RESOLUTION
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): H. Dick, J. Natland, J. Miller
Project: OCEAN DRILLING PROGRAM, LEG 176
Funding: NSF+ODP MEMBERS
Survey Departure Date (yyyymmdd): 19971008
Port of Departure: Cape Town, South Africa
Survey Arrival Date (yyyymmdd): 19971209
Port of Arrival: Cape Town, South Africa
Navigation Instrumentation: MX1107 GPS
Geodetic Datum/Position: GPS FIXES AT 1 MIN INTERVALS
Bathymetry Instrumentation: PDR-105B
Additional Forms of Bathymetric Data: ANALOG RECORDS & MICROFILM
Magnetics Instrumentation: EGG 886
Additional Forms of Magnetics Data: ANALOG RECORDS & MICROFILM
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: NONE COLLECTED
Topmost Latitude of Survey: -32
Bottommost Latitude: -36
Leftmost Longitude: 018
Rightmost Longitude: 058
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1/SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 06
Magnetic Sensor Tow Distance: 0450
Sensor Depth: 00100
Horizontal Sensor Separation: 000
Reference Field Code: 00
Reference Field: UNUSED
Additional Documentation: ORIGINAL RECORDS ARCHIVED AT ODP, DATES IN MGD77 DATA RECORDS ARE INCONSISTENT WITH ACTUAL CRUISE DATES. NOTE: MGD77 FILE CREATED FROM WINFROG RAW FILES USING WF2MGD77 V1.5
Number of Data Records: 65620
Min/Max Data Record:
Date: 1997 01 26
Latitude: -35.27739
Longitude: +18.17962
Bathymetry, 2- Way Traveltime: 005333
Bathymetry, Corrected Depth: 401.0
Magnetics Total Field, 1st Sensor: 238880
Min/Max Data Record:
Date: 1997 11 20
Latitude: -32.68879
Longitude: +57.30857
Bathymetry, 2- Way Traveltime: 082400
Bathymetry, Corrected Depth: 6247.0
Magnetics Total Field, 1st Sensor: 492540