Survey Identifier: SPNT02WT
Format Acronym: MGD77
Data Center File Number: 15040179
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V T.WASHINGTON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): P.LONSDALE,J.MAMMERICKX
Project: SPRINT LEG 2 M
Funding: LR GENERAL FUNDS
Survey Departure Date (yyyymmdd): 19840301
Port of Departure: SAN DIEGO,CALIFORNIA
Survey Arrival Date (yyyymmdd): 19840309
Port of Arrival: SAN DIEGO,CALIFORNIA
Navigation Instrumentation: LORAN,SATNAV AUTO LOG GYRO+2D DOPL.SP.LG
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: SEABEAM VERT.BEAM(2&2/3DEG)&3.5KHZ(WIDE)
Additional Forms of Bathymetric Data: ANAL.REC,35MM FILM,DIGITAL MAG TAPE
Magnetics Instrumentation: GEOMETRICS MAGNETOMETER MOD G-801/3
Additional Forms of Magnetics Data: ANAL.REC,35MM FILM,DIGITAL TAPE
Gravity Instrumentation: NONE COLLECTED
Additional Forms of Gravity Data: NONE COLLECTED
Seismic Instrumentation: AIRGUN PAR600B
Formats of Seismic Data: ANAL.RECORDS,35MM FILM
Topmost Latitude of Survey: +34
Bottommost Latitude: +31
Leftmost Longitude: -123
Rightmost Longitude: -117
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: 1PING IN H20
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: 1 MINUTE AVERAGES EXTRACTED FROM SEABEAM VERTICAL BEAMS
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 06
Reference Field Code: 88
Reference Field: DGRF 1980
Method of Applying Residual Field: LIN.INTERP.POINTS WITHIN ONE DEGREE SQUARE
General Sampling Rate of Gravity: 20
Theoretical Gravity Formula Code: I
Theoretical Gravity Formula: AG SYSTEM 1967 2
Reference System Code: P
Reference System: OTSDAM SYSTEM
Additional Documentation: PROCESSED BY GEOLOGICAL DATA CENTER, SCRIPPS INSTITUTION OF OCEANOGRAPHY, FIRST TEST CRUISE AFTER VAX 11/730 COMPUTER REPLACED IBM 1800. GAPS AND GLITCHES IN DATA. NGDC has multibeam bathymetric data for this cruise, however the tracklines, found here in GEODAS do not exactly correspond to the multibm data available.
Number of Data Records: 9959
Min/Max Data Record:
Date: 1984 03 02
Latitude: +31.18800
Longitude: -122.72317
Bathymetry, 2- Way Traveltime: 001267
Bathymetry, Corrected Depth: 95.0
Magnetics Total Field, 1st Sensor: 463790
Magnetics Residual Field: -03979
Min/Max Data Record:
Date: 1984 03 09
Latitude: +33.50150
Longitude: -117.31033
Bathymetry, 2- Way Traveltime: 063413
Bathymetry, Corrected Depth: 4763.0
Magnetics Total Field, 1st Sensor: 481790
Magnetics Residual Field: +02118