United States Coast and Geodetic Survey: Description of Its Work, Methods, and Organization ...U.S. Government Printing Office, 1920 - 102 pages |
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Common terms and phrases
accuracy accurate angles astronomic astronomic transit azimuth bars base bench marks bottom changes chronometer Coast and Geodetic Coast Pilots compass compilation computed copper plate corrections dead reckoning depth of water determined direction drag earth elevation engineers engraved error feet field geodesy Geodetic Survey Gulf Stream harbors height horizontal hydrographic surveying inch instrument invar invar tapes isostasy known latitude length located longitude low water magnetic magnetic declination mariner measured meridian meters method of printing miles nautical charts navigation necessary observations obtained ocean oceanography Pacific coast pendulum period of oscillation plane of reference points Polaris position precise leveling primary triangulation printing plate scale sea level shoal shore sinker sounding line Special Publication spirit level star steel telescope temperature tidal currents tide tables tide-predicting machine tion topographic traverse trigonometric leveling United States Coast vertical vessel wire