Advanced Surveying, Volume 2 |
Contents
Urbana Illinois | 1 |
The Interrelation of Errors | 7 |
The Precise Level | 13 |
Copyright | |
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Common terms and phrases
accuracy accurate adjusted alidade altitude Azimuth of Polaris benchmark bubble camera celestial equator celestial meridian celestial sphere central meridian chorobates circuit civil closing error Coast and Geodetic computed contour correction cross-hair direction distance drawn earth's elongation Ephemeris field fixed gage Geodetic Survey given Greenwich grid ground hence horizontal axis hour angle inches instrument interval latitude length lens line of sight located longitude mark means measured meter method object observation perspective view photograph picture plane plane coordinates plate plotted plumb line pole position probable error procedure projection Prosser respect right ascension scale sextant shown in Fig sidereal standard meridian star station stream sun's surface tangent tape telescope templets tion transit Transverse Mercator Projection traverse triangle U. S. Coast U. S. Naval Observatory upper culmination velocity vernal equinox vernier vertical angle