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Leveling

  • Robert J. Schultz

Abstract

Leveling is a process to determine the vertical position of different points below, on, or above the ground. In surveying operations, vertical elevations and vertical control are generally derived independently of horizontal control. Some modern positioning devices, termed total stations, allow simultaneous determination of spatial coordinates. Elevation is the vertical distance above a known datum or arbitrary reference surface. Elevations are helpful for the placement of a water drain line to provide free gravity flow, construction of a sports playing field, and among other applications, the vertical layout of a roadbed to allow a smooth flow of trucks and trains, which must ascend or descend sloping terrain.

Keywords

Gravity Field Geoidal Height Bench Mark Vertical Angle Vertical Control 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Anderson, E. G. 1979. Are primary leveling networks useless? ACSM Technical Papers, 39th Annual Meeting.Google Scholar
  2. Balazs, E. I. 1981. The 1978 Houston-Galveston and Texas Gulf Coast vertical control surveys. Surveying and Mapping 41 (4): 401.Google Scholar
  3. Balazs, E. I., and C. T. Whalen. 1977. Test results of first-order class III leveling. Surveying and Mapping 37 (1): 45.Google Scholar
  4. Berry, R. M. 1976. History of geodetic leveling in the United States. Surveying and Mapping 36 (2): 137.Google Scholar
  5. Berry, R. M 1977. Observational techniques for use with compensator leveling instruments for first-order levels. Surveying and Mapping 37 (1): 17.Google Scholar
  6. Boal, J. D., F. W. Young, and R. Mazaachi. 1984. Geometric aspects of vertical datums ACSM Technical Papers, 44th Annual Meeting.Google Scholar
  7. Caddess, H. N., and G. M. Cole. 1983. Precision leveling river crossing technique using reciprocal vertical angles ACSM Technical Papers, 43d Annual Meeting.Google Scholar
  8. Cook, K. L., and R. J. Schultz. 1971. Understanding geopotential numbers ACSM Technical Papers, 37th AnnuL A Meeting.Google Scholar
  9. Holdahl, S. R. 1983. Correction for leveling refraction and its impact on definition of the North American datum. Surveying and Mapping 43 (2): 123.Google Scholar
  10. Holdahl, S. R 1984. Aspects of a new height system for North America ACSM Technical Papers, 44th Annual Meeting.Google Scholar
  11. Huether, G. 1983. Employment and experiences with the NI 002 from Jenoptik Jena for the motorized leveling. ACSM Technical Papers, 43d Annual Meeting.Google Scholar
  12. Hussain, M., and R. D. Hemman. 1985. Accuracy evaluation of laser levels ACSM Technical Papers, 45th Annual Meeting.Google Scholar
  13. Kivioja, L. A. 1985. Hydrostatic leveling. ACSM Technical Papers, 45th Annual Meeting.Google Scholar
  14. Lippold, H. R., Jr. 1980. Readjustment of the national geodetic vertical datum. Surveying and Mapping 40 (2): 155.Google Scholar
  15. Quinn, F. H. 1976. Pressure effects on Great Lakes vertical control. ASCE Journal of the Surveying and Mapping Division 102 (SU 1): 31–38.Google Scholar
  16. Remondi, B. W. 1986. Performing centimeter-level surveys in seconds with GPS carrier phase: Initial results. ACSM Technical Papers, 46th Annual Meeting.Google Scholar

Copyright information

© Springer Science+Business Media New York 1987

Authors and Affiliations

  • Robert J. Schultz

There are no affiliations available

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