Survey Identifier: 1986N4B
Format Acronym: MGD77
Data Center File Number: 06990022
Parameters Surveyed Code: 51111
File Creation Date (yyyymmdd): 19890626
Source Institution: U.S. GEOLOGICAL SURVEY, MARINE GEOLOGY
Country: UNITED STATES
Platform Name: ACADIANA, GEODETIC
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): WILLIAMS, S.J. USGS,RESTON VA
Project: LOUISIANA COASTAL EROSION PROJECT
Funding: USGS
Survey Departure Date (yyyymmdd): 19860807
Port of Departure: COCODRIE, LA., USA
Survey Arrival Date (yyyymmdd): 19860807
Port of Arrival: COCODRIE, LA, USA
Navigation Instrumentation: SERCEL "SYLEDIS" SEE USGS REPT OFR89-150
Geodetic Datum/Position: UHF RADIO POSITIONG, SEE USGS REPT.
Bathymetry Instrumentation: FATHOMETER,210 KHZ DUAL FREQUENCY
Additional Forms of Bathymetric Data: CHARTS
Topmost Latitude of Survey: +30
Bottommost Latitude: +28
Leftmost Longitude: -092
Rightmost Longitude: -090
General Digitizing Rate of Bathymetry: 01
General Sampling Rate of Bathymetry: UNCL
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 02
Interpolation Scheme: NOT INTERPOLATED, SOUND VEL. BAR CHECK CALIBRATION
Additional Documentation: *** THIS FILE IS SECTION "1986N4B" - DATA IS DIVIDED INTO 11 SECTIONS. ***, TIMES ARE LINEAR INTERPOLATIONS USING START- AND END-OF-LINE TIMES FROM SHIP'S, LOG. DATA GRAPHICALLY EDITED FOR OBVIOUS SPIKES. FOR MORE INFORMATION ABOUT, THIS SURVEY AND A CONTOUR MAP OF THE DATA, SEE U. S. GEOLOGICAL SURVEY, OPEN-FILE REPORT 89-150.
Number of Data Records: 3362
Min/Max Data Record:
Date: 1986 08 07
Latitude: +28.83240
Longitude: -91.05967
Bathymetry, 2- Way Traveltime: 000023
Bathymetry, Corrected Depth: 2.0
Min/Max Data Record:
Date: 1986 08 07
Latitude: +29.01792
Longitude: -90.90107
Bathymetry, 2- Way Traveltime: 000066
Bathymetry, Corrected Depth: 5.0