Title :
The Application of Precise Trigonometric Leveling in River-Crossing Leveling
Author :
Liu, Guanlan ; Xu, Yaming
Author_Institution :
Sch. of Geodesy & Geomatics, Wuhan Univ., Wuhan, China
Abstract :
The method of river-crossing leveling named ranging trigonometric leveling is improved based on the Specification for the First and Second Order leveling. Simultaneous reciprocal observation is realized by improving the instruments and measurements, then the influence of atmospheric refraction is decreased, and the workflow is also simplified to increase the efficiency. The accuracy of reciprocal observation is analyzed at each group to guarantee the accuracy of the final results, then the improvement of the workflow is proposed.
Keywords :
geophysical techniques; height measurement; measurement by laser beam; rivers; surveying; atmospheric refraction effects; first order leveling specification; precise trigonometric leveling; ranging trigonometric leveling; river crossing leveling; second order leveling specification; simultaneous reciprocal observation; Accuracy; Atmospheric measurements; Barium; Distance measurement; Instruments; Rivers; Temperature measurement;
Conference_Titel :
Information Engineering and Computer Science (ICIECS), 2010 2nd International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7939-9
Electronic_ISBN :
2156-7379
DOI :
10.1109/ICIECS.2010.5677719
