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Plans and preparations
computation of corrections 427
52 other sections not shown
accuracy accurate adjusted aids to navigation angle antenna azimuth bar check base line bench marks bottom calibration chart Chief of Party Coast Pilot comparison computed control stations datum depth curves Descriptive Report determined discrepancies distance draft drographic echo sounder electronic positioning entered equipment errors field sheet figure frequency gage Geodetic graphic hydrographic survey hydrometer hyperbolic instrument intersection intervals kelp landmarks lead line least depths lines of position listed located LORAN-C Manual Marine Center measured ment methods National Ocean Survey nautical charts NOAA Form observed operation overlays phase photogrammetric plotted posi positioning system project instructions protractor pulse range range-range Raytheon rocks sample scale sextant shoals shore stations shoreline manuscripts shown signal skywave slave station smooth sheet sounding lines specific standard stylus survey vessel tape theodolite tidal tide or water tion transducer transmitted U.S. Coast Guard unit values velocity corrections verified vertical water level