The Use and Calibration of Distance Measuring Equipment for Precise Mensuration of Dams. Revised

摘要

This report is intended as a practical guide to land surveyors who use distance measuring equipment (DME) for making precise measurements of movements in dams and other large structures. The report consists of two parts: First, DME calibration, error sources, atmospheric corrections and correct use; Second, special techniques of trilateration and data reduction for precise mensuration on dams. This revised report contains several new sections dealing with error estimation, adjustment, and refractive index corrections. (Author)