ESTIMATION OF DESIGN HYDROGRAPHS FOR SMALL RURAL CATCHMENTS

DESIGN HYDROGRAPH PROCEDURES CURRENTLY IN USE USUALLY CONTAIN THE ASSUMPTION THAT THE RETURN PERIOD OF THE DESIGN HYDROGRAPH IS EQUAL TO THE RETURN PERIOD OF THE DESIGN RAINFALL. HOWEVER, IN MOST CASES NO PROVISIONS ARE MADE TO ATTEMPT TO ENSURE THIS EQUALITY OF RETURN PERIODS. A DESIGN HYDROGRAPH PROCEDURE HAS BEEN DEVELOPED WHICH MODELS SEPARATELY THE MAJOR FACTORS INFLUENCING THE RETURN PERIOD OF THE DESIGN HYDROGRAPH SUCH AS THE RAINFALL AMOUNT, ITS TEMPORAL PATTERN AND THE LOSSES FROM THE RAINFALL. COMPARISON OF DESIGN HYDROGRAPH PEAK DISCHARGES OF GIVEN RETURN PERIODS WITH THE CORRESPONDING PEAK FLOODS ESTIMATED FROM FREQUENCY ANALYSES OF OBSERVED FLOODS ON 21 CATCHMENTS IN AUSTRALIA, MOST OF WHICH WERE NOT USED IN THE DERIVATION OF THE PROCEDURE, INDICATE THAT THIS TYPE OF APPROACH TO THE ESTIMATION OF DESIGN FLOODS HAS CONSIDERABLE MERIT. /AUTHOR/

  • Supplemental Notes:
    • Vol 13, No 3, PP 263-277, 6 FIG, 3 TAB, 15 REF
  • Authors:
    • Cordery, I
  • Publication Date: 1971-7

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Filing Info

  • Accession Number: 00204391
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 25 1971 12:00AM