REGIONAL RELATIONSHIPS FOR THE RUNOFF ROUTING MODEL (RORB) REVISITED

To use the runoff routing model, RORB, for flood estimation in ungauged catchments, it is necessary to establish regional relationships for model parameters. To understand the nature of regional relationships, four variables plus the calibrated model parameters characterizing 122 catchments from four states in Australia were assembled to investigate the effect of catchment characteristics on the model parameters. Principal results are: (i) the parameter K* (=Kc/dav) should be used as an independent parameter in RORB instead of Kc; (ii) the variation in K* was found to be very small with a majority of values in the range of 0.5 to 2.5; (iii) there is no significant correlation between the equivalent uniform slope and K*; (iv) there exists a good relationship between K* and mean annual rainfall in the south western part of Australia where winter rainfall prevails, but such relationships are evidently less applicable in the north eastern part of Australia.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08190259
• Corporate Authors:

  Institution of Engineers

  11 National Circuit
  Barton, A.C.T.,   Australia 
• Authors:
  • Yu, Bin
• Publication Date: 1990

Language

• English

Media Info

• Pagination: p. 186-191
• Serial:
  • TRANSACTIONS OF THE INSTITUTION OF ENGINEERS, AUST
  • Volume: CE31
  • Issue Number: 4
  • Publisher: Institution of Engineers
  • ISSN: 0819-0259

Subject/Index Terms

• TRT Terms: Data collection; Drainage basins; Estimating; Estimation theory; Floods; Mathematical models; Rain; Regions; Runoff
• Geographic Terms: Australia
• ITRD Terms: 8006: Australia; 4318: Catchment area (hydrol); 8623: Data acquisition; 2569: Flooding; 132: Forecast; 6473: Mathematical model; 2507: Rain; 378: Region; 4329: Run off
• Subject Areas: Design; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00604931
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS, ATRI
• Created Date: Feb 28 1991 12:00AM