Survey Identifier: WEST04MV
Format Acronym: MGD77
Data Center File Number: 15020142
Parameters Surveyed Code: 51111
File Creation Date (yyyymmdd): 20031009
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V MELVILLE
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): M.MCCARTNEY
Project: WOCE EXPOCODE 318MWESTW_4, P21E; WESTWARD LEG 4
Funding: NSF OCE91-00522
Survey Departure Date (yyyymmdd): 19940327
Port of Departure: IQUIQUE, CHILE
Survey Arrival Date (yyyymmdd): 19940513
Port of Arrival: PAPEETE, TAHITI
Navigation Instrumentation: GPS,TRIMBLE MOD. 4000AX
Geodetic Datum/Position: BEST FIT 2ND ORDER POLYNOMIAL CURVE
Bathymetry Instrumentation: SEABEAM 2000 w/ SIDESCAN
Additional Forms of Bathymetric Data: DIGITAL MAG. TAPE
Magnetics Instrumentation: NONE COLLECTED
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: NONE COLLECTED
Topmost Latitude of Survey: -14
Bottommost Latitude: -21
Leftmost Longitude: -150
Rightmost Longitude: -070
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: 1PING IN H2O
Assumed Sound Velocity: 15000
Interpolation Scheme: 1 MINUTE VALUES EXTRACTED FROM SEABEAM VERTICAL BEAM
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF-1990
Method of Applying Residual Field: LIN.INTERP.POINTS WITHIN ONE DEGREE SQUARE
Additional Documentation: PROCESSED BY GEOLOGICAL DATA CENTER, SCRIPPS INSTITUTION OF OCEANOGRAPHY, DEPTHS CORRECTED FOR 5 METER SHIP DRAFT. NAVIGATION: DR BETWEEN 1 MINUTE INTERVAL GPS FIXES, FOLLOWING INFO FROM MULTIBEAM BATHYMETRY: Heading Sensor Sperry MK 23 Gyro; Vertical reference unit sensor Datawell Hippy Model 120; Navigation: Horizontal_Datum WGS84; Uncorrected meters, assumed SV 1500m/sec; Ship draft 5; Surface sound velocity sensor.
Number of Data Records: 64620
Min/Max Data Record:
Date: 1994 03 27
Latitude: -20.13313
Longitude: -149.60189
Bathymetry, 2- Way Traveltime: 001453
Bathymetry, Corrected Depth: 109.0
Min/Max Data Record:
Date: 1994 05 13
Latitude: -14.65366
Longitude: -70.23251
Bathymetry, 2- Way Traveltime: 093787
Bathymetry, Corrected Depth: 7128.0