Unformatted text preview: Lab Trigonometric Leveling Objective: This lab will familiarize the student with procedures of trigonometric leveling and the accuracies and precisions achievable. Overview: In trigonometric leveling, elevations are computed by trigonometry of right triangles formed by measured slope distances and zenith angles. Field Procedures. Calculations, and Analysis: 1. Measurements: You are to use four points you measured the elevation of in the 3-wire leveling lab. Use your first point as your base for trig leveling. Collect a sample of 20 measurements of elevation for each of the other three points. For the first sight at a point, record: slope distance, zenith distance, HI, HT, and then also record the far point's elevation as computed by the total station. Then for the other 19 sights record only the total station's elevation. You should have a total of 60 measurements of elevation, 20 at each point. You should also have three sets of slope dist, zenith distance, HI, and HT, one set for each of points. You should also have three sets of slope dist, zenith distance, HI, and HT, one set for each of points....
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This note was uploaded on 05/19/2011 for the course GEM 3330 taught by Professor Gibson during the Spring '11 term at University of Florida.
- Spring '11