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Lab Second OrderLeveling - Lab Objective Overview Second...

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D 6 Lab Second Order (Class I) Vertical Control Objective: This lab will familiarize the student with 3-wire geodetic leveling, as well as the procedures involved with obtaining a high order of accuracy and precision. Overview: Geodetic leveling is a process of obtaining high orders of accuracy and precision in elevation networks. The level network is based on the geoid rather than an ellipsoid or spheroid. The purpose of this is to maintain a network that conforms to the surface of the earth, which uses sea level as its reference point for elevations. Level networks must adhere to a stringent set of specifications outlined in the FGCC (Federal Geodetic Control Committee), Standards and Specifications for Geodetic Control Networks, September 1984. The standards set forth by the FGCC is a guide for proper leveling techniques and allowable errors associated with geodetic leveling. Specifications: The following is the specifications for a Second Order Class I Geodetic Control Network:
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