Survey Identifier: WEST15MV
Format Acronym: MGD77
Data Center File Number: 15020169
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19990901
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V MELVILLE
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): S.CANDE & J.HILDEBRAND
Project: WESTWARD EXPEDITION LEG 15 NSF
Survey Departure Date (yyyymmdd): 19950711
Port of Departure: SAN DIEGO,CALIF
Survey Arrival Date (yyyymmdd): 19950812
Port of Arrival: SAN DIEGO,CALIF
Navigation Instrumentation: TRIMBLE TASMAN P(Y) GPS
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: SEABEAM 2000 w/ SIDESCAN
Additional Forms of Bathymetric Data: ANAL.REC,35MM FILM,DIGITAL MAG. TAPE
Magnetics Instrumentation: GEOMETRICS MAGNETOMETER MOD-G801/3
Additional Forms of Magnetics Data: ANAL.REC,35MM FILM,DIGITAL MAG. TAPE
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: WATERGUNS
Formats of Seismic Data: ANAL.REC,35MM FILM
Topmost Latitude of Survey: 45
Bottommost Latitude: 32
Leftmost Longitude: -132
Rightmost Longitude: -117
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. GPS PRESENT 24 HRS/DAY. 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: 46113
Min/Max Data Record:
Date: 1995 07 11
Latitude: +32.62193
Longitude: -131.38086
Bathymetry, 2- Way Traveltime: 000240
Bathymetry, Corrected Depth: 18.0
Magnetics Total Field, 1st Sensor: 483910
Magnetics Residual Field: -06618
Min/Max Data Record:
Date: 1995 08 12
Latitude: +44.99911
Longitude: -117.22575
Bathymetry, 2- Way Traveltime: 059893
Bathymetry, Corrected Depth: 4488.0
Magnetics Total Field, 1st Sensor: 535160
Magnetics Residual Field: +12701