Lecture 2: Leveling Theory, Methods, and Equipment PDF
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Kennesaw State University
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This document contains lecture notes on leveling theory, methods, and equipment. It covers objectives and work required, including reading specific sections and problem solving.
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- Lecture 2 Thursday Chapter 4: Leveling-Theory, Methods, and Equipment Objectives 1. Understand how to correct for curvature and refraction in trigonometric leveling Work Required 1. Read: 4.5.4 through and including 4.14 2. Problems: 4.14(a), 4.14(c), 4.16 and 4.28. 4.5.4 T...
- Lecture 2 Thursday Chapter 4: Leveling-Theory, Methods, and Equipment Objectives 1. Understand how to correct for curvature and refraction in trigonometric leveling Work Required 1. Read: 4.5.4 through and including 4.14 2. Problems: 4.14(a), 4.14(c), 4.16 and 4.28. 4.5.4 Trigonometric Leveling The difference in elevation between two points can be determined by measuring: (1) the inclined slope distance (S or SD) or the horizontal distance (H or HD) between them and (2) the zenith angle (Z) or altitude angle (a) to one point from the other. ~ b Altitude angle = 90°-00’-00” Zenith angle = 00°-00’-00” Oo o, I ' og o, I 0 0 0 ,T 0 CJ\ ~ 11 r-------------------------- r ΔH AH en
