Bayesian recursive parameter estimation for hydrologic models

By M. Thiemann, M. Trosset, Hoshin V. Gupta, Soroosh Sorooshian. 2001

463 citations recorded by the source corpus.

The uncertainty in a given hydrologic prediction is the compound effect of the parameter, data, and structural uncertainties associated with the underlying model. In general, therefore, the confidence in a hydrologic prediction can be improved by reducing the uncertainty associated with the parameter estimates. However, the classical approach to doing this via model calibration typically requires that considerable amounts of data be collected and assimilated before the model can be used. This limitation becomes immediately apparent when hydrologic predictions must be generated for a previously ungauged watershed that has only recently been instrumented. This paper presents the framework for a Bayesian recursive estimation approach to hydrologic prediction that can be used for simultaneous parameter estimation and prediction in an operational setting. The prediction is described in terms of the probabilities associated with different output values. The uncertainty associated with the parameter estimates is updated (reduced) recursively, resulting in smaller prediction uncertainties as measurement data are successively assimilated. The effectiveness and efficiency of the method are illustrated in the context of two models: a simple unit hydrograph model and the more complex Sacramento soil moisture accounting model, using data from the Leaf River basin in Mississippi.

Subfields: Environmental Engineering, Global and Planetary Change, Water Science and Technology

View Paper: https://www.semanticscholar.org/paper/823943d847939c2f05437830de39f0558b5c1b4d

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In Environmental Engineering

  1. Jasper A. Vrugt
  2. Hoshin V. Gupta
  3. Thorsten Wagener
  4. Mojtaba Sadegh
  5. Keith Beven
  6. Yuqiong Liu
  7. Dmitri Kavetski
  8. Bruce A. Robinson

In Global and Planetary Change

  1. Jasper A. Vrugt
  2. Hoshin V. Gupta
  3. Mojtaba Sadegh
  4. Keith Beven
  5. Dmitri Kavetski
  6. Bruce A. Robinson
  7. G. Schoups
  8. Thorsten Wagener

In Water Science and Technology

  1. Jasper A. Vrugt
  2. Hoshin V. Gupta
  3. Mojtaba Sadegh
  4. Dmitri Kavetski
  5. Keith Beven
  6. M. Clark
  7. Bruce A. Robinson
  8. Thorsten Wagener

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