The research to this thesis was undertaken as a contribution to procedures for estimating design stream flows given minimal data. A unit hydrograph is developed for the station by operating on readily accessed parameters which include rainfall durations and totals, and hydrograph rise and recession times. Rainfall is distributed with respect to time, adjusted for interception, evapotranspiration and infiltration effects, and used in estimating direct storm runoff. Rise and recession times are used to produce synthetic hydrographs and Collins derivation is used to establish the unit graph. Two gauged catchments are studied to assess the techniques and a design-flow estimating procedure is detailed. (TRRL)

  • Corporate Authors:

    University of Auckland

    Private Bag
    Auckland 1,   New Zealand 
  • Authors:
    • Oldcorn, G
  • Publication Date: 1978-6

Media Info

  • Features: Figures; Tables;
  • Pagination: 110 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00325179
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: Report No. 184 Monograph
  • Files: ITRD, TRIS
  • Created Date: Apr 15 1981 12:00AM