Survey Identifier: RSCN01MV
Format Acronym: MGD77
Data Center File Number: 15020179
Parameters Surveyed Code: 51511
File Creation Date (yyyymmdd): 20001129
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V MELVILLE
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): KEVIN BROWN,SCRIPPS INSTITUTION
Project: ROSECANYON EXPEDITION LEG 1
Funding: NSF
Survey Departure Date (yyyymmdd): 19971013
Port of Departure: SAN DIEGO, CALIFORNIA
Survey Arrival Date (yyyymmdd): 19971017
Port of Arrival: SAN DIEGO,CALIFORNIA
Navigation Instrumentation: TRIMBLE TASMAN P(Y) GPS
Geodetic Datum/Position: WGS-84; LINEAR FIT TO 60 SEC FIXES
Bathymetry Instrumentation: SEABEAM 2000 w/SIDESCAN
Additional Forms of Bathymetric Data: ANAL.REC.,35MM FILM,DIGITAL MAG. TAPE
Additional Forms of Magnetics Data: NONE COLLECTED
Gravity Instrumentation: BELL BGM-3 METER
Additional Forms of Gravity Data: DIGITAL TAPE
Formats of Seismic Data: NONE COLLECTED
Topmost Latitude of Survey: 34
Bottommost Latitude: 32
Leftmost Longitude: -118
Rightmost Longitude: -117
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: 1PING IN H2O
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: ONE MINUTE VALUES EXTRACTED FROM SEABEAM CENTER BEAM
General Digitizing Rate of Gravity: 010
General Sampling Rate of Gravity: 01
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM 1967
Reference System Code: 3
Reference System: SYSTEM IGSN 71
Corrections Applied: EOTVOS AND METER DRIFT
Departure Base Station Gravity: 979535.
Departure Base Station Description: 5MARFAC PIER,SAN DIEGO,CALIF.
Arrival Base Station Gravity: 979535.
Arrival Base Station Description: 5MARFAC PEIR,SAN DIEGO,CALIF.
Additional Documentation: PROCESSED BY GEOLOGICAL DATA CENTER, SCRIPPS INSTITUTION OF OCEANOGRAPHY, DEPTHS CORRECTED FOR 5 METER SHIP DRAFT. GRAVITY: 1 SEC METER COUNTS FILTERED, WITH 99 SEC STD.DEV.GAUSSIAN CONV.WINDOW. FREE AIR ANOMALY SPIKES MAY BE, PRESENT BECAUSE SAME FILTER NOT USED FOR NAV. MULTIBEAM BATHYMETRY MAY NOT BE, AVAILABLE FROM NGDC FOR ALL AREAS COVERED BY SINGLE BEAM BATHYMETRY. FOLLOWING, INFO FROM MULTIBEAM BATHYMETRY: Heading Sensor Sperry MK 23 Gyro; Navigation:, Horizontal_Datum WGS84; Surface sound velocity sensor.
Number of Data Records: 4590
Min/Max Data Record:
Date: 1997 10 13
Latitude: +32.62533
Longitude: -117.72705
Bathymetry, 2- Way Traveltime: 000173
Bathymetry, Corrected Depth: 12.0
Observed Gravity: 9794346
Free-Air Anomaly: -0588
Min/Max Data Record:
Date: 1997 10 17
Latitude: +33.41305
Longitude: -117.22373
Bathymetry, 2- Way Traveltime: 010760
Bathymetry, Corrected Depth: 798.0
Observed Gravity: 9796520
Free-Air Anomaly: +0047