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Estimating low flow characteristics in ungauged catchments


This paper describes the development and derivation of a methodology for estimating low flow characteristics and yield in small ungauged rural catchments. The methodology has been applied to 184 catchments located in New South Wales and Victoria, in south-eastern Australia. A systems approach was adopted in which multivariate techniques were used to develop relationships between low flow parameters and climatic and land information data.

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Nathan, R.J., McMahon, T.A. Estimating low flow characteristics in ungauged catchments. Water Resour Manage 6, 85–100 (1992). https://doi.org/10.1007/BF00872205

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Key words

  • Ungauged catchments
  • baseflow
  • streamflow recession
  • low flow frequency
  • flow duration
  • low flow spell
  • rainfall-runoff model
  • regression
  • regionalisation