EFFECTS OF PARAMETER UNCERTAINTY IN STREAM MODELING

The effect of input parameter uncertainty on model output uncertainty was investigated using Monte Carlo simulation techniques. The mathematical model selected for investigation was a one-dimensional, steady state, uniform flow expression which includes longitudinal dispersion. Hydraulic input parameters (flow rate, velocity, and longitudinal dispersion) were assumed to be constant with respect to both time and space. Uncertainty in these hydraulic parameters, which results from instream measurement error, was characterized with normal distributions. First-order reaction rate uncertainty was assigned a bounded uniform distribution to signify a general knowledge of an expected range for highly reactive and relatively inert organic priority pollutants. In addition, the impact of inadequate pollutant loading characterization was investigated.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8675387
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Warwick, J J
  • Cale, W G
• Publication Date: 1986-6

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 479-489
• Serial:
  • Journal of Environmental Engineering
  • Volume: 12
  • Issue Number: 3
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9372
  • Serial URL: http://ojps.aip.org/eeo

Subject/Index Terms

• TRT Terms: Flow; Monte Carlo method; Simulation; Streamflow; Streams; Uncertainty; Velocity; Water pollution
• Uncontrolled Terms: Flow rate
• Old TRIS Terms: Dispersion
• Subject Areas: Highways; Hydraulics and Hydrology; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 00459463
• Record Type: Publication
• Report/Paper Numbers: ASCE Paper 20646
• Files: TRIS
• Created Date: Oct 31 1986 12:00AM