Vertical Datums and Leveling
Location: Distance Learning Course
|2021 - 2022 On-line Individual||$ 180.00|
|2021 - 2022 DVD Individual||$ 200.00|
|2022 - 2023 On-line Individual||$ 180.00|
|2022 - 2023 DVD Individual||$ 200.00|
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A datum is a reference system for computing or correlating the results of surveys. The two principal types of datums are vertical and horizontal. A vertical datum is a level surface to which heights are referred. In a widespread network of vertical control, geodetic leveling is the technique that provides the most reliable elevation differences between control points. It is a form of precise leveling in which the observing team limits the magnitude of error by using calibrated instruments in combination with a rigorous, symmetrical observing procedure. You will learn why General Procedures must be followed, gain an understanding of the Sources of Errors and how they occur, learn the Equipment used and how to keep it in good working condition, understand why the Collimation Check is critical, how to use the Compensation Check, and understand the Observing Routine that is used when leveling a line of the National Geodetic Vertical Control Network.
$12 flat rate shipping per order available in the U.S. (excluding Hawaii and Alaska)
|Course Fee (Basic)||2021 - 2022 On-line Individual||$ 180.00|
|Course Fee (Alternate)||2021 - 2022 DVD Individual||$ 200.00|
|Course Fee (Alternate)||2022 - 2023 On-line Individual||$ 180.00|
|Course Fee (Alternate)||2022 - 2023 DVD Individual||$ 200.00|
Distance Learning CourseDistance Learning Course
James ReillyDr. James P. Reilly received his B.S. in Mining Engineering from Penn State and his M.S. and Ph.D. in Geodetic Science from Ohio State. After a varied career in engineering, University research and teaching, industrial and private consulting, Reilly currently serves as Department Head in the Department of Surveying Engineering at New Mexico State University in Las Cruces. Through his firm, Geodetic Enterprises, LLC., Reilly does GPS consulting and seminars on surveying applications and GPS. He writes a bi-monthly column, "The GPS Observer," for P.O.B. Magazine. Dr. Reilly is the current President of the American Congress of Surveyors and Mappers.