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Geofisica pura e applicata

, Volume 45, Issue 1, pp 215–226 | Cite as

Computing a design flood in the absence of historical records

  • Herbert Riehl
  • Horace R. Byers
Article

Summary

A design flood for a Venezuelan river is computed in the absence of rainfall and stream-flow data of more than a few years. From synoptic studies of an area embracing northern South America and the Caribbean, the type of disturbance producing the abundant rains of the area is determined. A disturbance of this type is maximized on the basis of the ratio of energy dissipated through friction to released latent energy represented by rainfall — in other words, theefficiency of the system is given its highest reasonable value. The synthetic disturbance is moved over the river basin in a manner most favorable for heavy rain. Certain data available from other rivers are used as a cross-check on the resultant flood values.

Keywords

River Basin Historical Record Heavy Rain Latent Energy Design Flood 
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. Braham R. R., Jr.:The water and energy budgets of the thunderstorm and their relation to thunderstorm development. J. Meteorol., 9, 227–242 (1952).Google Scholar
  2. Deacon E. L.:Vertical profiles of mean wind in the surface layers of the atmosphere. Geophys. Mem., Air Ministry, Meteorol. Office, No. 91 (1953).Google Scholar
  3. Fletcher R. D.:A hydrometeorological analysis of Venezuelan rainfall. Bull. Am. Meteorol. Soc., 30, 1–9 (1949).Google Scholar
  4. Lettau H.:A re-examination of the «Leipzig wind profile» considering some relations between wind and turbulence in the frictional layer. Tellus, 2, 125–129 (1950).Google Scholar
  5. Riehl H.:Tropical meteorology. McGraw-Hill Book Co., New York, 392 pp. (1954).Google Scholar
  6. Taylor G. I.:Eddy motion in the atmosphere. Phil. Trans. Roy. Soc. London Ser. A., 215, 1–26 (1915).Google Scholar

Copyright information

© Istituto Geofisico Italiano 1960

Authors and Affiliations

  • Herbert Riehl
  • Horace R. Byers
    • 1
  1. 1.Department of MeterologyThe University of ChicagoChicago 37

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