Survey Identifier: PANR01MV
Format Acronym: MGD77
Data Center File Number: 15020176
Parameters Surveyed Code: 55531
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): CHARLES LANGMUIR,LAMONT-DOHERTY
Project: PANORAMA EXPEDITION LEG 1
Funding: NSF
Survey Departure Date (yyyymmdd): 19971102
Port of Departure: SAN DIEGO, CALIFORNIA
Survey Arrival Date (yyyymmdd): 19971211
Port of Arrival: ACAPULCO,MEXICO
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
Magnetics Instrumentation: GEOMETRICS MOD-G886
Additional Forms of Magnetics Data: DIGITAL TAPE
Gravity Instrumentation: BELL BGM-3 METER
Additional Forms of Gravity Data: DIGITAL TAPE
Formats of Seismic Data: NONE COLLECTED
Topmost Latitude of Survey: 33
Bottommost Latitude: 14
Leftmost Longitude: -120
Rightmost Longitude: -099
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 Magnetics: 010
General Sampling Rate of Magnetics: 06
Reference Field Code: 88
Reference Field: IGRF-1995
Method of Applying Residual Field: LIN.INTERP.POINTS WITHIN ONE DEGREE SQUARE
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: 978509.
Arrival Base Station Description: 6 DOD1753.3ACAPULCO,MEXICO
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. 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: 55453
Min/Max Data Record:
Date: 1997 11 02
Latitude: +14.66460
Longitude: -119.68911
Bathymetry, 2- Way Traveltime: 001240
Bathymetry, Corrected Depth: 93.0
Magnetics Total Field, 1st Sensor: 380520
Magnetics Residual Field: -10150
Observed Gravity: 9760912
Free-Air Anomaly: -0962
Min/Max Data Record:
Date: 1997 12 11
Latitude: +32.70119
Longitude: -99.88211
Bathymetry, 2- Way Traveltime: 064867
Bathymetry, Corrected Depth: 4880.0
Magnetics Total Field, 1st Sensor: 507250
Magnetics Residual Field: +59856
Observed Gravity: 9819164
Free-Air Anomaly: +1128