Stochastic models for forecasting snowmelt runoff
Title | Stochastic models for forecasting snowmelt runoff |
Publication Type | Conference Proceedings |
Year of Conference | 1985 |
Authors | Haltiner, J. P., and Salas J. D. |
Conference Name | 53rd Annual Western Snow Conference |
Series Title | Proceedings of the 53rd Annual Western Snow Conference |
Date Published | April 1985 |
Publisher | Western Snow Conference |
Conference Location | Boulder, Colorado |
Keywords | Snowmelt runoff, Streamflow forecasting, Time series modeling |
Abstract | Time series models of the ARMAX class were investigated for use in forecasting daily riverflow resulting from combined snowmelt/rainfall. The Snowmelt Runoff Model (Martinec-Rango Model) is shown to be a special case of the general ARMAX model. The advantage of the ARMAX approach is that analytical model identification and parameter estimation techniques are available. In addition, previous forecast errors can be included to improve forecasts and confidence limits can be estimated for the forecasts. Diagnostic checks are available to determine if the model is performing properly. Finally, Kalman filtering can be used to allow the model parameters to vary continuously to reflect changing basin soil moisture conditions. The above advantages result in improved flow forecasts with fewer model parameters. |
URL | sites/westernsnowconference.org/PDFs/1985Haltiner.pdf |