Making observations and models agree in spring snowmelt forecasting
Title | Making observations and models agree in spring snowmelt forecasting |
Publication Type | Conference Proceedings |
Year of Conference | 1984 |
Authors | Bissell, V. C., and Orwig C. E. |
Conference Name | 52nd Annual Western Snow Conference |
Series Title | Proceedings of the 52nd Annual Western Snow Conference |
Date Published | April 1984 |
Publisher | Western Snow Conference |
Conference Location | Sun Valley, Idaho |
Keywords | Daily adjustment of models, Flood warning, Forecasts, Reservoir operation, Simulation model, Snow melt, Water management, Water supply |
Abstract | No matter how well a hydrologic simulation model performs, results will inevitably differ from observed values in all but a few instances. In using the SSAARR model for snowmelt runoff forecasting, several 'knobs' are tweaked to keep the model in tune with observed conditions. Items for which close tracking is maintained are observed precipatation and temperature, discharge, snow covered area, melt rate, basin responsiveness to melt (and rain), and accumulated and residual seasonal runoff. Accessible model state variables and parameters are adjusted on a daily basis for individual basins within the Columbia basin. Forecasted downstream flows are summed to keep a close check on accumulated and residual flow at major flow points. Forecasts on the Boise River system during the spring of 1983 are discussed as examples. |
URL | sites/westernsnowconference.org/PDFs/1984Bissell.pdf |