Instrumentation IV: Field and Office Leveling [0:37]

This course introduces the concept of differential leveling in detail. Example field notes are presented to help the learner how to create them in the field, and how to carry out the calculations. The importance of keeping field notes current is emphasized. Various styles of field notes are covered including a style that accommodates intermediate foresights or “sideshots.” The method of level loop adjustment is covered. The course ends with determining the most probable elevation of a point when more than one line of leveling is run from different benchmarks to the point under consideration. Running time 37 minutes.

You will learn…

• Basic concepts of differential leveling
• Basic methods of keeping leveling notes
• Adjustment of a level loop, where the survey begins and ends at the same point
• How to resolve the elevation of a point that has been measured with different lines of levels initiating from different points.