METHOD FOR DETERMINATION OF VERTICAL REFRACTION

摘要

The invention relates to geodesic measurements, in particular to methods for determination of vertical refraction. Method for determination of vertical refraction is I fact that one installs on uniform horizontal surface level and rail, in front of rail, at same optimal for leveling distance from level and rail one installs in straight vertical direction flat mirror reflector and periodically takes readings in level for rail image in reflector. By change of readings in time one determines value of vertical refraction. The method simplifies the method and increases accuracy of determination of vertical refraction.