Corps of Engineers' Experience with Automatic Calibration of a Precipitation-Runoff Model.

Abstract

Computer program HEC-1, a precipitation-runoff model widely used throughout the United States, includes the capability to estimate automatically any of twelve parameters necessary to model the precipitation-runoff process and the channel routing process. The parameter estimation scheme employs Newton's method to minimize a weighted sum of squares of differences between observed and computed hydrograph values. Applications of this parameter estimation procedure are presneted, and typical steps of the procedure for deterimining optimal parameter estimates are outlined. Recent efforts to improve the estimation algorithm and recent use of the calibration capability to update sequentially parameter estimates in a flood forecasting application are discussed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1980
Accession Number
ADA109765

Entities

People

  • Arlen D. Feldman
  • David T. Ford
  • Edward C. Morris

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Algorithms
  • Army Corps Of Engineers
  • Base Flow
  • Calibration
  • California
  • Civil Engineering
  • Computer Programs
  • Computers
  • Drainage Basins
  • Engineering
  • Engineers
  • Flood Control
  • Measurement
  • Optimization
  • Precipitation
  • Simulations
  • United States

Readers

  • Environmental Engineering
  • Hydrologic Risk Analysis and Mitigation.
  • Regression Analysis.